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Copper smelting process

A new process, copper smelting technology, applied in the field of non-ferrous metal extraction and smelting, can solve the problems of low total product recovery rate, serious air pollution, poor product quality, etc., to improve product quality and product recovery rate, reduce transportation volume, Fast recovery effect

Inactive Publication Date: 2007-08-01
周杰
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] The present invention aims to overcome the problems that traditional copper smelting is 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 new copper smelting process

Method used

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  • Copper smelting process

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Embodiment Construction

[0011] 1. Take and prepare raw materials: the content of copper concentrate is: 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%, CaO7.40%, 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%, more 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. The powder ore is sent to the shaking table for gravity separation, and three varieties are obtained:

[0014] (1) The copper concentrate containing gold and silver can reach more than 90% copper, (2) medium ore, (3) tailings. Among them, the middle ore returns to the ore mill; the tailings enter the flotation, and the flotation is divided into two steps:

[0015] ①Rough selection in closed tank (the purpose is to control the loss of metal), add a small amount of pine oil, xanthate and black medicine in the closed tank to complete the flo...

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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 extraction and smelting technology of non-ferrous metals, in particular to a new copper smelting process. (2) Background technology: [0002] For more than 2,000 years, the smelting of copper concentrate is to smelt low-quality copper concentrate into the furnace for rough smelting, remove some non-metallic impurities and then make matte, then smelt into blister copper in a converter, and finally put it into a reverberatory furnace. into refined copper. This traditional method has large smoke and dust emission, serious air pollution, large transportation volume, large ground impurity discharge, high metal loss, high energy consumption, difficult environmental pollution, high production cost, poor product quality, and the highest total product recovery rate. Only up to 95.5%. (3) Contents of the invention: [0003] The invention aims to overcome the problems of traditional copper smelting mainly based on furnace smeltin...

Claims

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Application Information

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