Extracting method for copper in slag of copper smelting converter

An extraction method and converter slag technology, applied in solid separation, flotation, etc., can solve the problems of wide particle size range, uneven particle size of metal copper embedding, and unsatisfactory copper metal recovery, so as to improve the recovery rate and reduce the dosage of chemicals , cost-saving effect

Inactive Publication Date: 2012-02-22
YANTAI XINHAI MINING MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The intercalation particle size of metal copper is not uniform, and the particle size range is wide. Adding flota...

Method used

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  • Extracting method for copper in slag of copper smelting converter
  • Extracting method for copper in slag of copper smelting converter
  • Extracting method for copper in slag of copper smelting converter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The test was carried out on the converter slag of Shandong Hengbang Copper Smelting Co., Ltd., the chemical composition of the raw ore: Cu: 5.90%, T Fe: 45.68% (weight), and a copper ore dressing plant with a daily processing capacity of 800 tons was built.

[0033] First, the raw ore is ground by a ball mill; the ground material is classified by a hydrocyclone in two stages to obtain a material ore with a grinding particle size of -200 mesh accounting for 95%; the classified material is pretreated with an activator , the amount of activator: 800g / t; and then use positive flotation to carry out copper flotation respectively. After the flotation agent is added, it will be quickly adsorbed on the surface of the material to make the material float quickly. Dosage: 120g / t; the tailings after floating copper are subjected to weak magnetic separation to obtain iron concentrate, the magnetic field strength: 1200○e; the tailings after weak magnetic separation are dehydrated, and...

Embodiment 5

[0041] Conducted experiments on Penghui copper smelting slag, and built a copper ore dressing plant with a daily processing capacity of 120 tons. The operation effect is very good. The chemical composition of the raw ore: Cu: 3.1-7.3%

[0042] Firstly, the raw ore is ground through a ball mill; the ground material is subjected to two-stage classification by a hydrocyclone to obtain a material with a grinding particle size of -325 mesh accounting for 85%; the classified material is pretreated, and the amount of activator : 500g / t; and then use positive flotation to carry out copper flotation respectively, and obtain copper fine powder through two coarse and two sweeping operations. Iron concentrate, magnetic field strength: 10000e; tailings after weak magnetic separation are dehydrated, and tailings are dry discharged; and the flotation water obtained by positive flotation is recycled and reused.

[0043] Wherein, the flotation agent is a sulfide ore collector, and its general ...

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Abstract

The invention relates to an extracting method for copper in slag of a copper smelting converter. The extracting method comprises the following steps of: crushing the slag of the copper smelting converter, and grinding the slag by using a ball mill; classifying grinded materials; subjecting classification-qualified materials to floatation, and adding activating agent for the pretreatment of the materials; and adding floating agent into the pretreated materials, and subjecting the materials to positive floatation by using a flotation machine so as to extract copper concentrate. When the copper extracting method is adopted, recovery rate of copper is increased, high-level copper concentrate is obtained, cost is saved, and content of the copper in tailings is within 0.2%; and moreover the process is simple.

Description

technical field [0001] The invention belongs to the field of metallurgy and chemical industry, and more specifically relates to a method for extracting copper from copper smelting converter slag. Background technique [0002] At present, many copper smelters in the world use beneficiation methods to recover the copper metal in the converter slag, but the copper content in the tailing slag is relatively high and has not been recovered reasonably. Copper in copper smelting converter slag mainly exists in the form of metallic copper and copper sulfide, followed by cuprous oxide, copper oxide and copper ferrite. The intercalation particle size of metal copper is not uniform, and the particle size range is wide. Adding flotation reagents for separation, the copper content in the tailings is high, and the recovery of copper metal is not ideal. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the invention provides an efficient method for extractin...

Claims

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Application Information

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IPC IPC(8): B03D1/00B03D1/008B03D1/01B03D101/02
Inventor 张云龙常乃辉吴国富陈松梅
Owner YANTAI XINHAI MINING MACHINERY
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