"5,000 tons of arsenic residue recycling project" completed and put into production

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Recently, China's China Minmetals Corporation's Tin Mines Flash Sparks Co., Ltd. (hereinafter referred to as "tin mine") "5,000 tons of arsenic residue recycling project" was completed and put into production. This project is a scientific and technological project in China's antimony industry with all independent intellectual property rights and leading industries in the world. Its completion marks the national “863” project undertaken by tin mines—“Key Technology for Comprehensive Utilization of Strontium Smelting Sulfuric Acid Slag” Demonstration project research has achieved phased results and is of great significance to the environmental governance of the Xiangjiang River Basin, and it will produce radiation effects in the country's antimony industry.

It is understood that arsenic slag is a kind of waste residue produced during the smelting process of thorium, and the arsenic contained in the arsenic slag is commonly referred to as “arsenic”. If it is dissolved in water, it will cause significant environmental pollution. In order to solve this problem, Tin Mine and Nanchang University of Aeronautics, Central South University, Hunan Nonferrous Metal Research Institute and other research institutes jointly tackled the problem. Through years of efforts, arsenic trioxide separation, arsenic alkali separation, and sodium arsenate drying have been realized. Breakthroughs in the three key technologies can recycle all arsenic residues, and no new industrial wastes will be generated.

At present, the "5,000 tons of arsenic residue recycling project" has been included in the national Xiangjiang River heavy metal pollution control project. China Nonferrous Network. According to the plan, the project will dispose of the arsenic alkali slag accumulated in the flash star industry of tin mines in the past five years and meet the requirements of the heavy metal pollution control project in the Xiangjiang River Basin.

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