[Case Study] Dependence of Zeolite Particle Size Distribution on Grinding Time
Ishikawa-type automatic mortar and pestle D18S
The relationship between the particle size distribution of zeolite and grinding time.
[Summary] Experiments were conducted to investigate the relationship between the particle size distribution of zeolite and grinding time using D18S. The grinding times were varied at 15 minutes, 30 minutes, 1 hour, 2 hours, and 4 hours, with 2g samples taken at each interval. The particle size distribution of these samples was measured using a laser diffraction particle size analyzer. *The laser diffraction particle size measurement was outsourced to an external organization.
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**Conclusion** In the particle size distribution, the peak value (mode) of the particle size was 0.4μm for a grinding time of 1 hour. After 2 hours of grinding, it was 0.1μm. The standard deviation, which represents the variability of the particle size, decreased as the grinding time increased. However, beyond 2 hours, it saturated and remained almost constant at 3μm. From this, we can say the following regarding the relationship between the particle size distribution of zeolite at D18S and the grinding time within the experimental range: (1) The particle size (mode) tends to decrease with longer grinding times. Beyond 2 hours, it remains almost constant at 0.1μm. (2) The standard deviation representing variability decreases with longer grinding times. However, beyond 2 hours, it remains almost constant at 3μm. Thus, while longer grinding times lead to smaller particle sizes (mode) and reduced variability (standard deviation), these values become constant after 2 hours.
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Electronic component materials Conductive inks, conductive adhesives Insulating materials, sealing materials Pigments, glazes Metal (gold, silver, copper) pastes Glass pastes Carbon pastes Secondary batteries Lithium battery materials All-solid-state batteries Carbon nanotubes Ceramics materials Grinding wheels, abrasives, polishing agents Food (miso, red bean paste, spices, sesame, etc.) Biotechnology Pharmaceuticals, ointments Chemicals and cosmetics Chemistry and textiles Research and development equipment and devices Universities and research institutions Electronics Materials and substances Universities and research institutions Government agencies, organizations, associations Materials and substances
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Our company is a specialized manufacturer of automatic mortar and pestle machines. The features of the automatic mortar and pestle (Ishikawa-style stirring and grinding machine) include the ability to simultaneously perform stirring, grinding, mixing, and kneading using unique technology. It has the following basic capabilities: 1. Uniform and precise mixing is possible - Allows for uniform mixing while controlling particle size. 2. Easy uniformity and control of particle size - Can achieve uniform particle size while finely grinding. 3. Prevents excessive deterioration of materials - Due to low mechanical stress (mild processing energy), it can process while suppressing over-grinding and chemical changes. - High-energy processing (such as ball mills) can cause reaction changes due to heat generation, but temperature management is easier with the automatic mortar and pestle. 4. Suitable for small-scale prototyping and experiments - Ball mills and planetary mixers require large amounts of raw materials, but the automatic mortar and pestle can prototype with a minimum of 0.5g. - Easily adaptable for process scale-up (easy application from small to large scale). 5. Capable of processing slurries, pastes, and high-viscosity materials - The motor torque for the pestle rotation is high, allowing for processing of high-viscosity materials.
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