Known as "the world's non-ferrous metal museum" of Chenzhou Shizhuyuan, associated fluorite resources reserves of 46 million tons, accounting for 70% of the associated fluorite; as well as a large number of unrecovered fluorite tailings discharged annually . The upstream raw material resources required by this industry obviously have the characteristics and defects of “one low, one high and one largeâ€, that is, the main content is low, the impurity content is high, and the multi-metal ore dressing residual agent has large interference, which greatly limits the purity of fluorite and The recovery rate has seriously affected its development and application in downstream products; its recycling has long been recognized as a difficult problem in the industry, and has been listed in the national “Science and Technology Research†“Five Years†program.
In order to fully exploit the utilization of fluorite resources, Hunan Nonferrous Fluorine Chemical Group actively led and integrated the advantages of technology, market and resources, and established Hunan Nonferrous Luzhou Fluorine Chemical Co., Ltd., which enriched the research team and was completed in April 2010. Ten thousand tons of fluorite comprehensive recycling project; at the same time, it received technical support and professional assistance from Beijing Mining and Metallurgical Research Institute and Hunan Persimmon Park Nonferrous Metals Co., Ltd. At present, it has overcome the technical problems of fluorite recovery and comprehensive utilization, and has formed an advanced “one rough, one sweep, nine fine†flotation process, and created the unique “column machine joint selection, nine section selection, medium mine bypass†beneficiation technology. The main grade of fluorite is increased from the previous 90% to over 95%, and the recovery rate has increased from the previous 30% to over 50%. At the same time, the use of low-grade fluorite to produce anhydrous hydrogen fluoride, and then create another "unique" fluorine chemical technology. Fluorine Chemical Group has also successfully produced low-grade fluorite to produce dry aluminum fluoride products, achieving the third “uniqueness†of fluorine chemical technology.
In August 2012, the project was approved by a number of experts from the Chinese Academy of Engineering and other experts to identify the scientific and technological achievements of the identification team. Experts unanimously determined that the project “has formed a number of technologies for the recovery and utilization of fluorite from non-ferrous metal tailings with its own intellectual property rights, and the overall technology has reached the international advanced levelâ€. This major breakthrough in fluorite recycling technology has provided technical support for solving the problem of the shortage of basic raw materials and metallurgical auxiliary materials for domestic fluorine chemical products, and created a “resource conservation and utilization†for the sustainable development of China's fluorine chemical industry and metallurgical industry. new road.
It is understood that since the project was put into production, it has achieved good economic benefits. In 2012, the comprehensive recovery output of fluorite from Fluoride Company exceeded 10% of the designed production capacity; the sales income was more than 200 million yuan, more than doubled from the previous year; the profit was more than 46 million yuan, an increase of 31.7%. Since the establishment of the company in the past three years, the company has achieved a total profit of over 100 million yuan.
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