Small chlorine furnace <Removal of metal impurities from ceramics powder by dry chlorination>
Selectively volatilize Fe/Ni/Cr mixed in ceramic powder through chloride volatilization!
The "small chlorine furnace" is a product that maintains phase and particle size through negative pressure operation and oxygen partial pressure control, while minimizing waste liquid without the need for cleaning. By using Cl2/HCl for selective chlorination, it removes metal impurities that were mixed in during the production of ceramic powders (SiO2/Al2O3/Si3N4) in a dry manner. Additionally, it reduces impurities in a short time while maintaining the composition, crystal phase, and particle size distribution of the mother phase through chlorine volatilization. This allows for the elimination of the washing process, thereby reducing re-drying and waste liquid treatment costs. 【Features】 ■ Selective chlorination × temperature staging: Prioritizes the volatilization of metal chlorides while maintaining the base material phase. ■ Dry process: Minimizes the burden of waste liquid and re-drying without the need for washing. ■ Physical property retention design: Maintains crystal phase, particle size, and specific surface area through control of oxygen partial pressure and residence time. *For more details, please download the PDF or feel free to contact us.
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Applications/Examples of results
【Applications】 ■Reduction of metal contamination in high-purity silica fillers ■Removal of Fe/Ni/Cr contamination from alumina abrasives and substrates ■Pre-treatment of silicon nitride powder ■Dry purification of ceramic precursors for electronic components ■Selective removal of wear metals (SUS contact) from grinding and kneading processes *For more details, please download the PDF or feel free to contact us.
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Our company integrates three technologies: "electricity," "equipment," and "chemistry," using our unique know-how to develop innovative heating furnaces and other equipment. We handle various electric furnaces (heating furnaces) such as carbon furnaces, multi-atmosphere furnaces, metal furnaces, and chlorine furnaces, leveraging our proprietary high-temperature electric furnace technology. We are not just an equipment manufacturer; we are a strategic development partner that supports innovative manufacturing with advanced heating, looking ahead to the standards of the next decade alongside our customers.