Copper ore beneficiation technology
Copper ore crushing and grinding, copper flotation, copper ore, chemical and biological beneficiation, beneficiation products dehydration, dressing process online detection technology, beneficiation process of environmental protection, new copper beneficiation process.
Copper ore beneficiation equipment process
Disseminated copper ore flotation beneficiation
Generally use a relatively simple process, after a period of grinding fineness -200 mesh about 50% to 70%, 1 roughing, 2 to 3 times Picks, 1 to 2 times a scavenger. Relatively fine-grained copper minerals disseminated, may consider the stage grinding and separation processes. Concentrator processing bornite, mostly coarse concentrate regrinding – selection stage grinding and separation processes, and its essence is mixed – flotation process. The first period of rough grinding, roughing, scavenging, then rough concentrate regrinding selection of high grade copper concentrate and concentrate. Coarse Ground degrees -200 mesh about 45% to 50%, the the longer Ground degrees -200 mesh about 90% to 95%.
Densification copper ore flotation beneficiation
The densification copper ore due chalcopyrite and pyrite densification symbiotic, pyrite is often secondary copper minerals activation, higher pyrite content, it is difficult to suppress, separation difficulties. The sorting process requirements at the same time get copper concentrate and concentrate. Usually the election of copper tailings is pyrite concentrate. Ore gangue content of more than 20% to 25%, sulfur concentrate needed sorting again. Dealing with densification copper ore, often using a two-stage grinding stage grinding, grinding fineness requirements smaller. Larger dosages xanthate dosage 100g / (t ore) above, lime 8 ~~ 10kg (t ore) above.
Copper is one of the human derives from earlier metal from copper ore. It is the most soft heavy metals, but also than the major one of the metals, with a blue-gray, the hardness of 1.5, a specific gravity of 11.34, a melting point of 327.4 ° C, boiling point of 1750 ° C, good malleability, easy with other metals (such as zinc, tin, antimony, arsenic etc.) made of alloy. Zinc from the copper ore extracted out the metal late, is the ancient seven kinds of non-ferrous metals (, tin, copper, gold, silver, mercury, and zinc) in the last one. Zinc metal with blue and white, a hardness of 2.0, a melting point of 419.5 ° C, boiling point of 911 ° C, heated to 100 ~ 150 ℃, has a good pressure resistance, specific gravity of 7.19 after rolling. Zinc with a variety of non-ferrous metal alloy or zinc alloy, of which the most important is zinc with copper, tin, copper and other brass, etc.can also be composed of die-cast aluminum, magnesium, copper alloy. Copper and zinc is widely used in the electrical industry, mechanical industry, military industry, metallurgical industry, chemical industry, light industry and pharmaceutical industry and other fields. In addition, copper mineral processing equipment are more uses in the nuclear industry, the oil industry and other departments.
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