Recently, China Nonferrous Metals Construction Co., Ltd. under the China Nonferrous Metals Mining Group Co., Ltd.  The Chifeng Zhongbo Bohong Hongye Zinc Industry Co., Ltd., a company controlled by the stock company, came from a good news:  The company’s technology invention patent was a patented invention patent certificate issued by the State Intellectual Property Office. This is another result achieved by China Nonferrous Metals relying on scientific and technological progress and strengthening independent innovation.
   The low-pollution desulphurization method for iron removal by hydrometallurgy mainly includes four steps of neutral leaching, low-temperature pre-neutralization, high-temperature and high-acid leaching, and low-pollution incineration and iron removal. High level, low energy consumption, high recovery, can effectively enhance the ability to remove impurities, improve the quality of the final product, reduce the raw and auxiliary materials and energy consumption, improve the metal recovery rate, and facilitate the comprehensive recovery of valuable metals. It is currently newly built in China. Wet zinc refining company's mainstream technology. Chifeng Zhongsice , the master of the process, is the first smelter that adopts the low-pollution Shenyu iron and iron smelting zinc smelting process in China, and is also the first company in China to pass the ISO9001 quality management system and ISOl4001 environmental management system certification. And ISO1800l occupational health and safety management system certified three systems of zinc smelting enterprises.
Chifeng Zhongbo Bohonghong Zinc Industry Co., Ltd. is located in Hongshan District, Chifeng City, Inner Mongolia, and formerly Chifeng Smelter. In early 2006, China Nonferrous Metal Industry Corporation reorganization and holding the Chifeng smelter, and began Phase III expansion of Chifeng zinc smelting, put into operation in April 2007, the formation of zinc smelting capacity of 110,000 tons and 180,000 tons of sulfuric acid production capacity . Due to its location in the Chifeng area and its abundant lead-zinc resources and its own dedicated railway transportation lines, Chifeng Zhongshuang Kubo Hongye Zinc Industry Co., Ltd. has become one of the largest zinc smelters with the highest self-sufficiency in local raw materials.