Copper reserves in China is one country in the world copper more . The total reserves of 62.43 million tons of copper , ranking seventh in the world . Proved reserves accounted for 35% of the copper -rich . Copper is widely distributed , in addition to Tianjin , Hong Kong, Shanghai, Chongqing and Taiwan , including the provinces ( cities, districts ) Jieyou outputs. The mine has proven reserves of 910 . Jiangxi Copper reserves among the nation’s top spot , accounting for 20.8% , followed by Tibet , accounting for 15% ; again Yunnan, Gansu , Anhui, Inner Mongolia, Shanxi, Hubei and other provinces , the provinces have copper reserves of 300 million tons. gold ore processing plant
Process copper processing equipment is divided into three parts
Broken sections: the basic process of ore grinding process . Its purpose is crushed ore to an appropriate size suitable for the grinding part . Grinding parts: part grind ore processed further to get a smaller size is to tie flotation separation materials . Flotation parts: the flotation process / upgrade copper important process . Chemicals are added to the mixer / blender , the chemical reaction . Ore mined first by the initial jaw crusher broken, after crushing to a reasonable degree of fineness via elevator, feeder evenly into the ball mill, ball mill for ore crushing, grinding.
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After grinding mill ore fines into the next process : classification. Spiral classifier with the proportion of solid particles in the liquid varies the speed of sedimentation principle, the mixture was washed ore , grading . After washing and grading in the mixture after the mineral separator , the ratio of the susceptibility of various different minerals , magnetic and mechanical forces via mixing the compound magnetic material separated. After initial separation of mineral particles in the separator is fed to the flotation machine according to the different characteristics of different drugs minerals , such as minerals and other substances to be separated from . After the minerals to be separated , because they contain large amounts of water , subject to the initial concentration of the thickener , and then dried by the dryer , and dried to obtain minerals . Copper concentrate grade of 45% can be achieved . mobile crusher for rent malaysia
Two common copper beneficiation process copper ore flotation
Dye -shaped copper ore flotation . Generally use relatively simple process , after a period of grinding fineness -200 mesh about 50 % -70 % , 1 roughing , 2-3 times , 1-2 times a selection of scavenging . Disseminated copper minerals such as particle size relatively small, could be considered stage grinding and separation processes. Processing bornite concentrator , mostly coarse concentrate regrinding – selection stage grinding and separation processes, and its essence is mixed – flotation process . After the first period of rough grinding, roughing, scavenging , then coarse concentrate regrinding and then get a high grade copper concentrate and a selection of pyrite concentrate . Coarse Ground degrees -200 mesh about 45% -50 % , -200 mesh and then pulverized about 90 % -95 %. gold ore processing plant
Dense copper ore flotation . Because of the dense copper ore chalcopyrite and pyrite dense symbiosis, pyrite is often activated secondary copper minerals , higher pyrite content , it is difficult to suppress , sorting difficult. Sorting process requires both get copper concentrate and concentrate . Usually after copper tailings is pyrite concentrate . If the ore gangue content of over 20 % to 25% , sulfur concentrate needed to get sorted again. Dense copper ore processing , often using two stage grinding or grinding, fine grinding fineness requirements . Pharmacy amount is larger, xanthate dosage 100g / (t ore ) above , lime 8 ~ 10kg (t ore ) above.
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