Five scientific and technological achievements of Zhongzhou Branch passed expert appraisal

Recently, the five scientific and technological achievements of the Zhongzhou branch passed the expert appraisal organized by the China Nonferrous Metals Industry Association. Two of the achievements were created internationally, and the three achievements reached the international advanced level.

After listening to the report and on-site inspection, the expert group unanimously held that Zhongzhou Branch’s “bauxite flotation tailings paste storage technology” further improved the beneficiation Bayer process technology, which can improve the safety of tailings stacking and save Land resources, and easy to realize reclamation, significant economic, social and environmental benefits, the overall process technology is an international initiative; "enhanced concentrate concentrate 'single-flow' dissolution effect technology research" reduces the entry of new water, is conducive to energy saving At the same time, it has developed the "two-stage calcium matching" technology, and the process technology is internationally pioneered; "The research and industrialization of the enrichment and dissolution of the mineralized bauxite bauxite after high pressure dissolution" has optimized the process configuration and determined Grinding and solidification, circulating alkali liquor, dissolution temperature and other better technical conditions, and successfully explored a suitable flocculant and its application technology, the overall technology has reached the international advanced level, has broad prospects for popularization and application; 'Shuangliu' high-pressure dissolution automatic control system research and completed the remote centralized control of all electrical equipment of the dissolution system, the unit chain protection and self-steaming The automatic control of the material level and the temperature of the dissolution unit has established a dynamic PID adjustment model for the temperature control of the unit, and the overall technology has reached the international advanced level; the “continuous carbonation decomposition process optimization control system” will be the first for advanced control such as expert systems and soft measurement. The technology is applied to the continuous carbonation decomposition process and has significant economic benefits. Its flow soft measurement technology has reached the international advanced level.

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