Mineral processing agent refers to an agent used to change the physical and chemical properties of mineral surfaces or to create conditions to regulate the floatability of minerals during the flotation process. For example: lead, sphalerite, fluorite and other useful minerals, mainly quartz gangue. The ore is crushed and ground until the useful mineral monomer is dissociated and then converted into a slurry. The problem to be solved in this example is the separation of useful minerals and gangues, and the separation of useful minerals. The problem solved is: separation of useful minerals and gangues, separation of useful minerals. The solution is to prioritize the flotation method. Compounds such as xanthate, sputum 105, ethyl sulphide, black medicine, oleic acid, terpineol are common mineral processing agents. The amount of ore dressing chemicals required in mining activities is large, mostly in the natural settlement of tailings dams, or directly discharged into the environment after a simple physical purification of the sedimentation method. In the treatment of wastewater, the COD and BOD values ​​are simply considered to replace the pollution of organic matter. It is considered that the larger the value, the more serious the pollution. Most of the mineral processing chemicals used in mines in China are relatively low-grade varieties, such as xanthate, black medicine and pine oil, as well as large amounts of lime and sodium sulfide. These varieties are large in dosage, low in efficiency, highly toxic and high in nature. Pollution, millions of drugs are discharged into the environment every year, which not only causes serious pollution to the mine environment, but also greatly increases the production cost of the mine. The annual consumption of mine chemicals in the world is tens of millions of tons, and the annual consumption in China is one million tons. However, before most of the pharmaceuticals are put into large-scale use, there is no environmental assessment, and there is no corresponding regulation and quality control. Moreover, the use areas of mine chemicals are mostly mountainous areas and semi-mountainous areas at the source of rivers, mostly ecologically fragile areas or superior water source areas. Millions of tons of ore dressing chemicals enter the environment from here, which fundamentally threaten the ecosystem. The development of organic synthesis technology has created favorable conditions for the synthesis of a large number of mineral processing chemicals. Large-scale mining of mines, especially the comprehensive utilization of low-grade refractory ore, continuous improvement of beneficiation theory and technology, requires more varieties of mineral processing chemicals for production. At present, thousands of inorganic and organic compounds have been used as mineral processing agents, but few are actually used in production practice, and dozens of them are the most commonly used. In the past, in the research, production and application of mineral processing chemicals, only pay attention to its technical and economic benefits, but did not pay attention to the pollution caused by the ecological environment, and did not consider the harm caused by the use of these chemicals. Nowadays, due to the frequent occurrence of pollution incidents, the pollution of the mineral environment by the mineral processing agents has aroused people's attention, prompting people to take corresponding measures to prevent pollution and protect the ecological environment. 99.99% Nitrogen Generator,High Purity Nitrogen Generator,Nitrogen Generator Industrial,Nitrogen Generator Equipment Jiangsu Minnuo Group Co.,Ltd , https://www.jsmngroupcn.com
Definition and characteristics of pollution of mining and metallurgy