Recently, China Nonferrous Metals Industry Association organized a scientific and technological achievement appraisal meeting in Zhengzhou to appraise the research results of Aluminum Electrolysis Three Low Technology Research and Application project completed by China Aluminum Corporation Henan Branch. Experts at the meeting listened to the report of the task group, reviewed the appraisal data, and examined the site. After serious discussion, experts believed that the project had the following characteristics and innovations: (1) According to the characteristics of different tank age electrolyte enrichment LiF, the Homogenization technology to develop a low molecular ratio and LiF + CaF2 double salt electrolyte system; (2) optimize the technical conditions and refinement operation to solve the furnace bottom easy to produce precipitation crust, the side of the furnace easy to melt the problem, to achieve low Primary crystal temperature, low superheat and low electrolysis temperature (“three low†technology) production, lower than the general electrolysis temperature of 15 ~ 30 °C; (3) application of database, ASP, Java, ActiveX controls and other technologies, using B / S Developed an aluminum electrolysis production management software with a C/S hybrid structure, integrated existing data resources, conducted classification processing, and multi-angle analysis to ensure the implementation and application of the “three low†technologies.
Experts believe that the implementation of aluminum electrolysis "three low" technology, aluminum production more stable and efficient, the main technical and economic indicators to improve significantly, significant economic benefits. The technology has reached the international advanced level.
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