関西化学機械製作 Product Lineup

The rotary thin film evaporation device "EVA Reactor" prevents droplet carryover by utilizing centrifugal force, thereby improving evaporation efficiency. The comb-shaped blades are efficiently arranged to enhance the renewal of the thin film surface and promote evaporation. It can be used in both horizontal and vertical orientations. For more details, please contact us or download the catalog.

The recovery system is a continuous high-concentration device that easily accommodates high viscosity and high vacuum. The liquid sprayed on the circumference of the heating surface of the container decreases in flow rate as evaporation progresses, leading to sufficient concentration. As the liquid decreases due to evaporation, the circumference of the heating surface becomes smaller, allowing for the formation of a uniform liquid film. As a result, high concentration is achieved while preventing burning. Additionally, due to the slow rotation, power consumption is also minimized. For more details, please download the catalog or contact us.

The process of recovering clean solvent from the cleaning solvent is essential for distillation operations. However, it has been a common understanding in the industry that with conventional turbine blades, as the liquid level decreases, the heat transfer area also reduces, leading to a drop in evaporation efficiency and longer evaporation times. In response to customer feedback, the heat transfer enhancement device "Wall Wetter" was developed. It lifts the liquid remaining at the bottom of the evaporation can using centrifugal force and disperses it onto the heating surface, effectively utilizing heat transfer areas that would normally be unusable. This allows for maximum utilization of the heat transfer area, enabling a constant evaporation rate during operation. *For more details, please download the catalog or contact us.*

The new liquid-liquid extraction tower "MS Column" focuses solely on the advantages of mixer-settler extraction devices and tower-type extraction devices. It features a vertical arrangement of the mixer (mixing chamber) and settler (settling separation chamber), separating the flow paths of the light and heavy liquids. This has resulted in improved extraction efficiency, increased processing capacity, and successful miniaturization of the equipment. For more details, please download the catalog or contact us.

The basic function of the change tray is a system that instantly switches between tray state and baffle state. Additionally, it has the capability to control the pressure loss of the tray from the outside and adjust the flow rate. The "Change Tray Distillation Tower System" enables energy savings and reduction of operating time for batch distillation operations using the change tray. After extracting component A, it is possible to extract the intermediate cut liquid in one go by changing from tray state to baffle state. *For more details, please download the catalog or contact us.*

The "lift tray" is a tray with an automatically adjustable opening ratio due to its lift mechanism, resulting in low pressure loss and a wide stable operating range. The tray element consists of a fixed perforated plate, a movable perforated plate, a stop for the movable perforated plate that also serves as a lift upper limit stop, and a casing. The opening ratio ranges from 0 to 20% at no ventilation (minimum opening ratio) and from 20 to 60% at maximum lift (maximum upper opening ratio), with hole shapes including round, square, triangular, and elongated. The diameter of the holes, opening ratio, and hole shapes are designed based on the processed material, operating conditions, and intended use. For more details, please download the catalog or contact us.

The thin film evaporation device "Hi-U Blasher" creates a thin film of liquid by allowing it to flow along a heated surface, evaporating it at low temperatures and in a short time under vacuum to minimize thermal impact. Compared to other evaporation devices, such as pot stills (single-stage evaporation cans), its heat transfer coefficient is about 10 times higher, and it has lower pressure loss. It is used for the rectification, concentration, decolorization, deodorization, and degassing of substances that are prone to thermal decomposition or have high boiling points. For more details, please contact us or download the catalog.

The heat transfer enhancement device "WWEvaCon Evaporation Plus" has further evolved the functions of the "Wall Wetter," such as "shortening evaporation, heating, and cooling times," "reducing the amount of scorching," "operating with a small amount of liquid," and "mixing two liquid phases." It employs a jacket-sealed vacuum steam system, allowing for the utilization of condensation and evaporation heat transfer, enabling rapid heating and cooling of the main liquid. With 100% of the heat transfer surface being usable, temperature control is also stable. For more details, please download the catalog or contact us.

The high-performance mixer "Active Turbine" operates differently from conventional mixers, which mix by moving the entire liquid. It is believed that the energy given to the liquid, which is converted into heat, is greater than the energy used for mixing. The new Active Turbine was conceived from a different perspective than traditional mixing. The Active Turbine incorporates a stationary mixer (commonly known as a static mixer) onto the impeller of a pump, utilizing centrifugal force to achieve micro-mixing of the passing material. The Active Turbine can be used across a wide range of viscosities, from low to high. It is also suitable for substances that may precipitate crystals (thixotropic liquids). We have developed partial mixers such as D1 and D2 specifically for the Active Turbine, allowing for compatibility with various liquids. The Active Turbine is available in types A, B, C, and D, depending on the installation method of the partial mixer. For more details, please contact us.

A wall wetter is a high-performance heat transfer enhancement device that can maintain a constant heat transfer area by pumping up the liquid remaining at the bottom of the evaporation can and spraying it onto the heat transfer surface.

The continuous evaporation device "multi-chamber evaporator" incorporates partition plates into a conventional single evaporator, dividing the liquid phase into three or more sections, and connecting the separated chambers through connecting pipes (holes). Each chamber can be heated with the same heat source or separately, allowing for evaporation. The principle is that when continuous evaporation is performed in a conventional single evaporator, the interior operates at the final boiling point of the concentrated liquid. In a multi-chamber evaporator, the single evaporator is divided, allowing the concentrated liquid to move between the separated chambers, creating differences in boiling point and concentration within the same evaporator. This increases the temperature and concentration differences between the heating temperature and each divided section, enhancing the evaporation efficiency of the device. For more details, please download the catalog.

The ultra-high vacuum distillation system, "Ultra High Vacuum Distillation System," has been successfully developed in collaboration with Nippon Suisan. This system allows for distillation in ultra-high vacuum conditions that were previously thought to be impossible. To lower the temperature of substances, we use a multi-stage distillation tower connected by condensed liquid, which is different from conventional methods. As a result, it has become possible to distill substances that were previously unimaginable. For more details, please download the catalog.

The evaporation and concentration device "Wall Wetter" draws up the liquid remaining at the bottom of the evaporation can using centrifugal force, disperses it onto the heating surface, and promotes evaporation through the wet wall effect. In lines involving processes such as concentration, evaporation, reaction, and solvent recovery (recycling) for pharmaceuticals and food, it is possible to shorten time and processes by more than 50%.

The process of recovering clean solvent from the cleaning solvent is essential for distillation operations. However, it has been a common understanding in the industry that with conventional stirring blades, as the liquid level decreases, the heat transfer area also reduces, leading to decreased evaporation efficiency and longer evaporation times. The heat transfer enhancement device "Wall Wetter," developed in response to customer feedback, lifts the liquid remaining at the bottom of the evaporation can using centrifugal force and sprays it onto the heating surface, effectively utilizing heat transfer areas that would normally be unusable. 【Features】 - Lifts the liquid remaining at the bottom of the evaporation can using centrifugal force, sprays it onto the heating surface, and promotes evaporation through the wet wall effect! - The heat transfer area remains constant from the beginning to the end of the distillation, allowing for maximum utilization! - Even boiling liquids become a thin film flow, increasing the heat transfer coefficient! - The heat transfer area can be maximally utilized, allowing for a constant evaporation rate regardless of the liquid volume in the evaporation can! *For more details, please download the catalog or contact us.

The process of recovering clean solvent from the cleaning solvent is essential for distillation operations. However, it has been a common understanding in the industry that with conventional stirring blades, as the liquid level decreases, the heat transfer area also reduces, leading to a drop in evaporation efficiency and longer evaporation times. The heat transfer enhancement device "Wall Wetter," developed in response to customer feedback, lifts the liquid remaining at the bottom of the evaporation can using centrifugal force and disperses it onto the heating surface, allowing for effective utilization of heat transfer areas that would normally be unusable. This enables maximum utilization of the heat transfer area and allows for constant evaporation rates regardless of the liquid volume in the evaporation can. [Example of Technical Data Publication: Time Reduction Example with Wall Wetter (1)] (Device Capacity: 10m3, Charge Capacity: 8m3, Toluene Evaporation Example) ■ Comparison of Required Evaporation Time ■ Time Reduction Rate with Wall Wetter ■ Explanation using physical properties, structural variables, and operational variables *For more details, please download the catalog or contact us.

The Wall Wetter has further evolved its superior functions such as "shortening evaporation, heating, and cooling times," "reduced scorching," "operation with small amounts of liquid," and "mixing of two liquid phases." It is a jacket-sealed vacuum steam system. This allows for the use of condensation and evaporation heat transfer involving phase changes, enabling rapid heating and rapid cooling of the main liquid. The use of Wall Wetter ensures that 100% of the heat transfer surface is utilized, stabilizing temperature control. 【Features】 ○ Rapid Heating → Saturated steam is always present at a vacuum level appropriate for the temperature → Jacket heat transfer media can include water and other high-boiling-point heat media ○ Rapid Cooling → Enclosed vapor condenses and flows down to the heat transfer surface → Evaporative cooling occurs due to pressure drop For more details, please contact us or download the catalog.

The flask also evaporates thoroughly, expanding the variations of the flask experimental device while maintaining the functions of the Wall Wetter, such as "reduction of evaporation, heating, and cooling time," "less sticking," "operation with a small amount of liquid," and "mixing of two liquid phases." By pumping up the liquid remaining at the bottom of the evaporation can with the Wall Wetter and spraying it onto the heat transfer surface, the heat transfer area is kept constant. 【Features】 ○ A lineup of fixed and openable types according to the flask you use ○ The standard material is SUS316L ○ Teflon coating is also available For more details, please contact us or download the catalog.

This is a bench unit for experimental and small-scale production, consisting of a reaction evaporator, condenser, and receiver, equipped with a wall wetter that effectively utilizes the heat transfer area and an EvaCon that allows for easy heating and cooling. It achieves precise and easy control from 50°C to 150°C. Additionally, by using high-boiling liquids such as thermal oil as jacket sealing liquids, control from 100°C to 300°C can also be easily achieved. 【Features】 ○ Easy to reconfigure ○ Compact stainless steel design ○ Reaction, evaporation, and distillation unit For more details, please contact us or download the catalog.

"WWEvaCon Evaporation Plus" is a jacket-sealed vacuum steam system that has further evolved the superior functions of the Wall Wetter, such as "reduction of evaporation, heating, and cooling time," "minimal scorching," "operation with small amounts of liquid," and "mixing of two liquid phases." It can utilize phase change condensation and evaporation heat transfer, allowing for rapid heating and cooling of the main liquid. The use of Wall Wetter ensures that the heat transfer surface is utilized 100%, stabilizing temperature control. 【Features】 ○ Heat transfer surface is always effectively utilized ○ Fast cooling speed ○ Evaporation rate is nearly constant ○ Efficient heating with vacuum steam ○ Quick switching from heating to cooling For more details, please contact us or download the catalog.

The "WW Mouton Evaporator" is a new type of thin film evaporation device that achieves high heat transfer efficiency by forming a forced falling thin film without contact, unlike conventional vacuum evaporators. It features a structure designed to solve the shortcomings of traditional devices, where liquid is drawn up from several trays located in the vertical section and sprayed onto the heat transfer surface in a non-contact manner through inclined troughs for circulation. It is designed to achieve a sufficiently large overall heat transfer coefficient without the need for forced thin film formation using wipers or similar devices. 【Features】 ○ Easy maintenance due to the absence of contact blades ○ Reduced frequency of device stoppages due to the lack of consumable parts ○ High concentration possible through multi-stage design ○ Each stage is modular and can be added later ○ Quick response to capacity and processing volume increases For more details, please contact us or download the catalog.

The "Short Path Distillator" is a short-path distillation device that allows for distillation operations at lower temperatures than conventional methods due to reduced operating pressure. The evaporative jacket type utilizes the evaporation and condensation of the jacket's enclosed liquid for heating and cooling. Typically, water or organic compounds suitable for the desired temperature range are used. By utilizing the latent heat of evaporation for heat transfer and reducing the pressure resistance of the main body to allow for thinner plates, high heat transfer efficiency is achieved. Additionally, the heat transfer medium in the jacket can be cooled, allowing for rapid cooldown. 【Features】 - Optimal for the removal of trace low-boiling components in high-boiling point liquids - Distills heat-sensitive substances in a short time with a single pass - Easy to scale up the device - The adoption of the evaporative jacket enables speedy startup - Roller wiper with a crank mechanism → Allows for easy disassembly, assembly, and roller replacement during cleaning For more details, please contact us or download the catalog.

The compact solvent recovery device "WW Sukkiri-kun" allows for easy solvent recovery. By simply connecting cooling water, a heat source, and electricity, solvent recovery can be performed anywhere. Using a wall wetter, the evaporation rate remains constant regardless of the liquid volume. Recovery is completed in a short operating time. This device can accommodate both batch and continuous processes. By adopting an internal condenser, one compact solvent recovery device can regenerate solvents while supporting the 3Rs of waste liquid: Reuse, Reduce, and Recycle. For more details, please download the catalog or contact us.

Kansai Chemical conducts plant engineering for processes such as distillation, evaporation, refining, reaction, fermentation, extraction, and solvent recovery. I will explain the "mechanism of how laundry dries." On rainy days during the rainy season, laundry is difficult to dry. On sunny summer days, it dries easily. This is due to the difference in the amount of moisture in the air (humidity). However, the total number of air molecules (the amount of air) and water molecules (the amount of moisture) in the atmosphere is almost equal. The number of water molecules in the atmosphere increases with higher temperatures, and as the number of water molecules increases, the number of air molecules decreases. There is a limit to the number of water molecules that can exist. On winter mornings, you may see water droplets on the window glass. This happens because the room temperature has risen due to heating at night, allowing it to hold a lot of moisture. When morning comes and the temperature drops, it exceeds that limit, resulting in water droplets. During such times, laundry does not dry. *For more details, please refer to the PDF document or feel free to contact us.*

Kansai Chemical conducts plant engineering for processes such as distillation, evaporation, refining, reaction, fermentation, extraction, and solvent recovery. I will explain about "atmospheric pressure and boiling point." Most of the atmosphere consists of air and water, and atmospheric pressure is expressed in hectopascals (hPa). In fact, atmospheric pressure is the sum of air pressure and water vapor pressure. In the state before the water in the pot boils, steam initially rises above the pot, and gradually the amount of water vapor increases. The amount of air just above the pot decreases gradually. When boiling occurs, all the air is gone, and it becomes all water vapor. Assuming the atmospheric pressure on that day was 1,013 hPa, the water vapor pressure just above the pot becomes 1,013 hPa since there is no air left, and it consists solely of water vapor. At that time, the temperature of the pot is 100°C. *For more details, please refer to the PDF document or feel free to contact us.*

Kansai Chemical conducts plant engineering for distillation, evaporation, refining, reaction, fermentation, extraction, solvent recovery, and more. I will explain about "temperature and vapor pressure." When water boils at 100°C, its vapor pressure is 1,013 hPa. At the summit of Mount Fuji, the atmospheric pressure is said to be approximately 630 hPa. When the water in a pot boils, the water vapor just above the pot displaces all the air, so the vapor pressure of the water is the same as the atmospheric pressure, which is 630 hPa. At this point, the temperature of the boiling water is likely 87°C. At the summit of Mount Everest, the atmospheric pressure is about 300 hPa. The temperature of boiling water here is 69°C. Thus, "the boiling temperature is determined by pressure." In other words, it is a physical property value. In other words, vapor pressure is determined by temperature. *For more details, please refer to the PDF document or feel free to contact us.

Kansai Chemical will explain "Humidity and Partial Pressure." The atmosphere is a mixture of air and water, and the ratio of this mixture is humidity. Just above a boiling pot, there is no air, only 100% water vapor. Therefore, the pressure of that water vapor is equal to atmospheric pressure. Most liquids have a vapor pressure determined by temperature, and the vapor pressure of water at 30°C (saturated vapor pressure) is 42 hPa. If the atmospheric pressure on Earth were 42 hPa, water would boil at 30°C. However, the atmospheric pressure at ground level is considered to be an average of 1,013 hPa (neither high pressure nor low pressure). If the water in the pot is at 30°C, then the water vapor just above the surface of the water is 42 hPa, and the air pressure is (1,013 - 42) = 971 hPa. When several components are mixed, the total pressure is called the total pressure, and the pressure exerted by each component (air, water) is called the partial pressure. And this is known as "the total pressure is equal to the sum of the partial pressures (Dalton's Law of Partial Pressures)." *For more details, please refer to the PDF document or feel free to contact us.

Kansai Chemical conducts plant engineering for processes such as distillation, evaporation, refining, reaction, fermentation, extraction, and solvent recovery. This document discusses the "units of concentration used in distillation." In distillation, observing the state at the molecular level allows for a more concrete understanding. The concentration unit expressed as a ratio of the number of molecules is called "mole fraction." This document provides explanations using specific formulas related to mole fraction. [Contents] ■ Units of concentration used in distillation *For more details, please refer to the PDF document or feel free to contact us.

Kansai Chemical will explain "partial pressure and total pressure." When it comes to pressure in distillation operations, it usually refers to the pressure limited on the gas side. Air is primarily composed of nitrogen and oxygen, with nitrogen making up about 80% and oxygen about 20% by volume. (The molar ratio is the same.) Now, let's consider a balloon inflated with air. Inside the balloon, nitrogen and oxygen molecules are moving vigorously. They are colliding violently and uniformly (according to Pascal's principle) against the inner walls of the balloon multiple times. The pressure inside the balloon can be said to be the result of these collision forces. One mole is a collection of 6.022×10^23 molecules, and for all gases, at 0°C and 1 atm, it occupies 22.4 L. This means that the force exerted by a single molecule on the wall during a collision is equal for both nitrogen and oxygen. While we have imagined a lot about gases, an important law regarding the handling of gases in distillation is Dalton's law of partial pressures: "Total pressure P (kPa) = Sum of partial pressures Σpi (kPa)." *For more details, please refer to the PDF document or feel free to contact us.

Kansai Chemical will explain about "ideal gases." An ideal gas is defined as: - "The size of the molecules is negligible (therefore, the molecules do not collide with each other)" - "When colliding with walls, the direction changes but the speed remains the same (elastic collision)" - "There are no interactions between molecules" Based on these assumptions, the laws mainly related to the field of distillation are "Boyle's Law and Charles's Law" and "Dalton's Law of Partial Pressures." While we have imagined many aspects regarding gases, an important law in the handling of gases during distillation is Dalton's Law of Partial Pressures: "Total Pressure P (kPa) = Sum of Partial Pressures Σpi (kPa)." This law is derived from the properties of ideal gases, but it is a sufficiently reliable law within the range used in distillation. *For more details, please refer to the PDF materials or feel free to contact us.*

Kansai Chemical conducts plant engineering for processes such as distillation, evaporation, refining, reaction, fermentation, extraction, and solvent recovery. This document includes information on "Vapor Pressure of Single Component Liquids." All liquids handled in distillation have a vapor pressure determined by temperature. We provide a detailed explanation of the vapor pressure estimation formula, "Antoine Equation," using diagrams for clarity. [Contents] ■ Vapor Pressure of Single Component Liquids *For more details, please refer to the PDF document or feel free to contact us.

Kansai Chemical will explain about "ideal solutions." A solution in which "Raoult's Law" holds is called an ideal solution. The solutions that can be treated as ideal solutions are very limited combinations, such as methanol-ethanol and benzene-toluene, which have similar molecular structures. However, the existence of solutions that behave like ideal solutions is sufficient for understanding the concept of distillation operations when treated as ideal solutions. "Raoult's Law" states that the partial pressure \( p_i \) of a component in the vapor phase is equal to the product of the vapor pressure \( P_i \) of each pure component in the solution and the concentration \( x_i \) (mol-fraction) of that component in the solution. Here, it also relates to the ratio of the number of molecules in the liquid. *For more details, please refer to the PDF document or feel free to contact us.*

The vapor pressure of a mixed solution is determined by the combination of the vapor pressure equations for single components, the "Antoine equation," "Raoult's law," and "Dalton's law of partial pressures." In an ideal solution, all distillation calculations (distillation simulations) can be performed using these three equations and material balance equations. This document includes information on "vapor pressure of mixed solutions (vapor-liquid equilibrium)," as well as "creation of vapor-liquid equilibrium diagrams (X-Y diagrams)" and "boiling point curves, dew point curves." [Contents] ■ Vapor pressure of mixed solutions (vapor-liquid equilibrium) ■ Creation of vapor-liquid equilibrium diagrams (X-Y diagrams) ■ Boiling point curves, dew point curves *For more details, please refer to the PDF document or feel free to contact us.

Kansai Chemical conducts plant engineering for processes such as distillation, evaporation, refining, reaction, fermentation, extraction, and solvent recovery. This document covers "Single Distillation and Material Balance (Continuous Evaporation)." In separation operations, not limited to distillation and evaporation, it is essential to keep material balance in mind. The most important aspects of distillation and evaporation operations are "vapor-liquid equilibrium" and "material balance." This document explains "vapor-liquid equilibrium" and "material balance" using diagrams and graphs. [Contents] ■ Single Distillation and Material Balance (Continuous Evaporation) *For more details, please refer to the PDF document or feel free to contact us.*

Kansai Chemical will explain "Single Evaporation and Material Balance (Batch Evaporation)." After all the raw liquid is charged into the evaporator, evaporation begins. Once the liquid in the kettle reaches a specified amount, heating is stopped, and the remaining liquid in the evaporator is removed. This type of evaporation operation is called batch evaporation. This operation is used when there are many varieties of products to be evaporated or when the amount to be evaporated in a day is small. This distillation method is also referred to as differential distillation, and as the liquid volume in the evaporator decreases, the liquid concentration, the concentration of the evaporating vapor, and the temperature change continuously. Therefore, the material balance equation does not become a uniquely determined equation like that of continuous distillation. *For more details, please refer to the PDF materials or feel free to contact us.

Kansai Chemical conducts plant engineering for processes such as distillation, evaporation, refining, reaction, fermentation, extraction, and solvent recovery. This document covers "The Principles of Distillation and Distillation Equipment." It explains specifically how to "increase concentration by repeatedly evaporating and condensing," using diagrams. Additionally, it provides detailed explanations on "Distillation Columns and Material Balance," "Theoretical Stages and Reflux Ratio," and "Minimum Theoretical Stages and Minimum Reflux Ratio." [Contents] ■ Principles of Distillation and Distillation Equipment ■ Distillation Columns and Material Balance ■ Theoretical Stages and Reflux Ratio ■ Minimum Theoretical Stages and Minimum Reflux Ratio *For more details, please refer to the PDF document or feel free to contact us.

Distillation is "one of the unit operations related to the separation of liquids that have been used since ancient times, utilizing the difference in boiling points for separation." This document provides a clear explanation of the fundamental knowledge necessary to understand distillation, distillation columns, and distillation equipment, including "the differences from evaporation" and "the differences from boiling." 【Contents (excerpt)】 ■ What is distillation (introduction) ■ Units of concentration used in distillation ■ Gases and pressure ■ Vapor pressure of single-component liquids ■ Principles of distillation and distillation equipment, etc. *For more details, please refer to the PDF document or feel free to contact us.

Kansai Chemical conducts plant engineering for processes such as distillation, evaporation, refining, reaction, fermentation, extraction, and solvent recovery. "Distillation" is one of the unit operations for separating liquids that has been used since ancient times, utilizing the difference in boiling points of liquids for separation. This document summarizes the seven fundamental aspects of this separation operation. [Contents (excerpt)] - Each pure liquid has a vapor pressure determined by temperature. - In distillation operations, many laws are based on molecular units, with the unit being moles. - The vapor pressure (partial pressure) from a mixed liquid can be determined using Raoult's law. - There is an equilibrium relationship between the liquid phase concentration and the gas phase concentration in a mixed liquid. - The concentration of low-boiling components in a mixed liquid increases each time evaporation and condensation occur, among other points. *For more details, please refer to the PDF document or feel free to contact us.

The "WW Mixer" is a new type of mixing machine devised from a different perspective than conventional stirring methods. While traditional mixers circulate and shear liquids within a liquid medium for mixing, this product releases the liquid into space to combine and mix it. Additionally, since it uses very little rotational and shear force, it requires less power, making it particularly effective for mixing multiphase liquids and solid-liquid combinations. 【Features】 < Liquid-Liquid > ■ Mixes liquids with low power ■ Can handle large specific gravity differences ■ Low shear force ■ Mixing is promoted by collisions with tank walls and other surfaces *For more details, please download the PDF or feel free to contact us.