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Copper smelting process

A copper smelting and process technology, applied in the field of extraction and smelting of non-ferrous metals, can solve the problems of low total product recovery rate, poor product quality, high production cost, etc., to improve product quality and product recovery rate, fast recovery, and increase mineral processing The effect of strength

Inactive Publication Date: 2008-11-19
周杰
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  • Claims
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Problems solved by technology

[0003] The present invention aims to overcome the problems of traditional copper smelting, mainly furnace smelting, serious air pollution, high energy consumption, high production cost, poor product quality and low total recovery rate of products, and provides a copper smelting process

Method used

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  • Copper smelting process

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Embodiment Construction

[0011] 1. Prepare raw materials: copper concentrate composition content: H 2 O 14.51%, Cu 30.5%, Pb 0.004%, Zn 0.0045%, S 1.06%, As 0.06%, SiO 2 46.5%, Al 2 o 3 8.10%, CaO 7.40%, Fe 1.60%, Au 0.60g / t, Ag 80.0g / t, other impurities 4.77%, raw material particles: less than 150 mesh accounted for 70%, larger than 150 mesh accounted for 30%.

[0012] 2. Send the copper concentrate to the ore mill and grind it to 200-400 mesh.

[0013] 3. Send the powdered ore to the shaking table for gravity separation to obtain three varieties:

[0014] (1) Copper fine powder containing gold and silver can contain more than 90% copper, (2) middle ore, (3) tailings. Among them, the medium ore returns to the grinding machine; the tailings enter the flotation, and the flotation is divided into two steps:

[0015] ① Closed tank roughing (purpose is to control metal loss), drop a small amount of pine oil, xanthate, and black medicine in the closed tank to complete the flotation; A small amount o...

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Abstract

The invention relates to a new copper smelting process. It comprises following steps: grinding clean copper ore in ore grinding machine to 200- 400 order, separaing out three strains through weight selection in shaker: copper fine powder with copper content being above 90%, medium class ore, and tailings; dewatering copper fine powder and feed it into smelter for smelting; refluxing medium class copper into grinding machine; and tailings for flotation, flotating out copper fine powder with copper content being above 90%, dewater fine copper powder and feeding it into smelter for smelting; electrolyzing got coarse copper and getting fine copper product. The invention overcomes problems of severe air pollution, high energy consumption, high production cost, bad product quality, low total product recovery rate for traditional copper smelting. The invention concentrates on ore selection, reduces usage of smelting-furnace with high energy consumption, increases product recovery rate and greatly reduces production cost.

Description

(1) Technical field: [0001] The invention relates to the extraction and smelting technology of nonferrous metals, in particular to a copper smelting technology. (two) background technology: [0002] For more than two thousand years, the smelting of copper concentrate is to put the low-quality copper concentrate into the furnace for rough smelting, remove some non-metallic impurities and make matte copper, then smelt it into blister copper in the converter, and finally put it into the reverberatory furnace to make matte copper. into refined copper. This traditional method has large smoke and dust emissions, serious air pollution, large transportation volume, large discharge of ground impurities, high metal loss, high energy consumption, difficult environmental pollution, high production costs, poor product quality, and the highest total product recovery rate. It can only reach 95.5%. (3) Contents of the invention: [0003] The present invention aims to overcome the proble...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B15/00C22B1/14B03B4/02B03B5/28B03B9/00C25C1/12C25C3/00
CPCY02P10/20
Inventor 周杰周清江
Owner 周杰