“The first phase of the Fluorosilicon Chemical Project passed today the pre-acceptance of the Yanchang Petroleum Group's engineering quality and has the conditions for trial production.†On August 9, Li Li, General Manager of Shaanxi Yanchang Petroleum Group Fluorosilicone Chemical Co., Ltd. told reporters. Earlier, the project had passed the pre-acceptance inspection of the engineering quality of the Shaanxi Provincial Petrochemical Quality Supervision Station. The scale of the fluorite mineral resources in Shangluo City was intensively developed and utilized, and a key step was taken to create a fluorite- fluorine industrial chain. According to the person in charge of the Shaanxi Province Shangluo City Bureau of Industry and Information Technology, Shangluo is located in the hinterland of the Qinling Mountains in the southeastern part of Shaanxi Province. It spans two major river basins, the Yangtze River and the Yellow River. The unique mineralization geological conditions form a variety of minerals in the region. More than 60 kinds of mineral resources, is a treasure house of metal and non-metallic mineral resources. Among them, the proven reserves of fluorite mineral resources are more than 7.3 million tons and the long-term reserves are more than 10 million tons. It is the only fluorite producing area in Shaanxi. Affected by the geological structure and metallogenic conditions, Shangluo fluorite ores are mostly below 40% in grade and belong to low-grade fluorite ore. Over the years, most of the fluorite resources in Shangluo have not been able to form large-scale, intensive mining. Instead, they are sold as primary ore or cement additives, and limited resources cannot provide corresponding economic benefits. The distribution of fluorite production enterprises is small and the production scale is small. The annual production capacity of fluorite in 19 mining enterprises is only 230,000 tons; the industrial chain is short and the technological content of products is low. The main production is primary ore, and most of the fluorite enterprises are in the state of production suspension and semi-discontinuation. . “Fluorite is a national restricted mining species and is the main basic raw material for the fluorine chemical industry. It occupies a very important position in the national economy and national defense industry. The use of fluorite to abandon poverty has resulted in not only comprehensive and effective use of fluorite resources, but also The value is low, and the problem of safety and environmental protection is outstanding," said Wang Zhanyuan, deputy manager of Mine Resources Department of Fluorosilicone Chemical Co., Ltd. of Yanchang Petroleum Group. In May 2009, the first provincial-level circular economy industrial park in Shaanxi Province, the Shangdan Circular Industrial Economic Zone was opened in Shangluo. The first phase of the fluorosilicone industrial park and the comprehensive recovery and utilization of electrozinc residues from the Shangluo zinc smelting plant included 10 items. Major projects were started at the same time. The Fluorine Silicon Chemicals Co., Ltd. established by Shaanxi Yanchang Petroleum Group is building a fluorosilicone chemical industry project based on Shangluo's fluorite resources. One phase of the project has invested 770 million yuan to build a 100,000 tons sulfuric acid, 40,000 tons of anhydrous hydrogen fluoride, 30,000 tons of fluorinated aluminum, and 0.5 million tons of cryolite and 0.6 million tons of ammonium fluoride production facilities. Shangluo City will integrate the domestic fluorite production enterprises and all of them will be allocated to the project. “The project has adhered to the concept of recycling from the beginning. Whether it is the selection of raw materials, the processing of the “three wastes†in the production process, or the deep processing of products, we have fully considered the comprehensive and effective use of resources. The entire project has almost no waste residue, and all of them have been dried. Even the wastewater has achieved zero emissions," Li Li said. For example, according to different grades of fluorite ore, the company is supporting two flotation plants, and 270,000 tons of fluorspar ore is produced annually to produce 90,000 tons of fluorspar fine powder; sulphuric acid raw materials are used to contain sulphurous residue after flotation of molybdenum ore. Through the grading and utilization of iron slag produced during the production process, iron slag with a high content of magnetic iron oxide is used in iron-making plants, iron slag with high content of ferric oxide produces cement additives, and sulfur dioxide is converted into sulfur trioxide for the recycling production of sulfuric acid. Fluorspar powder and sulfuric acid produce a large amount of fluoro-gypsum slag during the production of anhydrous hydrogen fluoride, mainly containing 98% of calcium sulphate, and the annual output is nearly 200,000 tons. It will be sold by products to the annual output of the newly-built Shangdan Circular Economy Industrial Park. 1.5 million tons of cement additive device; for the waste acid and waste liquid in the production process, the company will not miss it, and use it to produce cryolite and ammonium fluoride. It is understood that the processing of fluorite ore into acid-grade fluorspar powder will increase its value by 3 to 5 times, processing it into hydrogen fluoride by 10 to 20 times, and processing it into inorganic fluorinated chemical products may increase by 30 to 50 times, and processing into organic materials containing fluorine Value-added 100 to 200 times, processed into fluorine-containing organic fine chemical products can even add 150 to 300 times. “After the first phase of the project is completed and put into production, we will not simply expand the scale of production when we are preparing to start the second phase of the project. Instead, we rely on the Shangdan Circular Industrial Economic Zone to focus on the transformation of our products and to further extend the fluorine chemical industry chain.†Li Li told reporters that it will focus on the development of hydrogen fluoride and fluoride salts, electrolytic fluorine, environmentally friendly refrigerants, fluorine coatings, fluorine rubber, fluorine fine chemicals, and oil mill surfactant flooding surfactants. Supporting. After the completion of the project, the value of the fluorite mineral resources in Shangluo will be increased by 5 to 300 times, thoroughly changing the status of low-level development, and maximizing the exploitation and utilization of mineral resources. According to Cao Lei, deputy director of the Shaanxi Provincial Development and Reform Commission's Regional Economic Department, according to the "Southern Shaanxi Recycling Economy Industry Development Plan" (2009 to 2020), the core area of ​​Shangluo's circular economy industry focuses on the new material industry and builds photovoltaic, salt, and fluorine chemicals. Materials, potassium feldspar, and other 10 recycling industrial chains, to create a demonstration base for the comprehensive utilization of modern materials and tailings resources. “The mineral resources relied on in the development of southern Shaanxi are mostly distributed in key ecological protection zones and water conservation zones. Shangluo is also the upstream water source zone for the South-to-North Water Diversion Project. The contradiction between resource development and environmental protection is large. Therefore, comprehensive utilization of resources and circular economy must be maintained. “The new member of the Shaanxi Provincial Decision-making Advisory Committee and vice president of the Shaanxi Provincial Circular Economy Research Association, Xin Xinquan, said.
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A key step in the fluorite-fluorine industry chain