A kind of beneficiation and smelting method of iron-encapsulated mixed copper ore

A mixed copper ore and packaged technology, applied in chemical instruments and methods, flotation, wet separation, etc., can solve the problems of high cost, high operation and maintenance requirements, and achieve the goal of solving difficult recycling, improving comprehensive utilization rate, The effect of reducing the amount of ore

Active Publication Date: 2020-01-10
KUNMING UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these two methods use high-temperature pressure-stirring leaching and microwave drying and heating technology to treat the copper-containing inclusions in the ore. The cost of heating equipment is high, and the operation and maintenance requirements are high, and this method is mainly aimed at the recovery of copper oxide ore

Method used

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  • A kind of beneficiation and smelting method of iron-encapsulated mixed copper ore

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1: the mass percent composition of copper in the irony wrapped copper ore of the present embodiment is 1.0%, and the oxidation rate of copper is 70%; Taking the copper content in the iron wrapped copper mixed ore as 100%, The content of copper in iron minerals is 35%, and the iron minerals are hematite and limonite;

[0024] Such as figure 1 Shown, a kind of beneficiation and smelting method of iron-encapsulated mixed copper ore, concrete steps are as follows:

[0025] (1) Crush and grind the iron-coated mixed copper ore until the mass percentage of -74μm grain size accounts for 70%. In the mine plan, add 400g of vulcanizing agent (the vulcanizing agent is sodium sulfide), 300g of collector (the collector is butyl xanthate) and 30g of foaming agent (the foaming agent is No. 2 oil) in sequence to carry out a roughing operation To obtain the first roughing concentrate and the first roughing tailings, based on per ton of iron-encapsulated mixed copper ore, add...

Embodiment 2

[0030] Embodiment 2: the mass percent content of copper in the irony wrapped copper ore of the present embodiment is 1.4%, and the oxidation rate of copper is 79.2%; Taking the copper content in the iron wrapped mixed copper ore as 100%, The content of copper in iron minerals is 39.5%, and the iron minerals are hematite and limonite;

[0031] Such as figure 1 Shown, a kind of beneficiation and smelting method of iron-encapsulated mixed copper ore, concrete steps are as follows:

[0032] (1) Crush and grind the iron-coated mixed copper ore to a mass percentage of -74μm, which accounts for 75% of the mass percentage, and adjust the slurry to a mass percentage concentration of 35%. In the mine plan, add 550g of vulcanizing agent (the vulcanizing agent is sodium sulfide), 500g of collector (the collector is butyl xanthate) and 75g of foaming agent (the foaming agent is No. 2 oil) in order to carry out a roughing operation To obtain the first roughing concentrate and the first ro...

Embodiment 3

[0037] Embodiment 3: the mass percent composition of copper in the irony wrapped copper ore of the present embodiment is 1.8%, and the oxidation rate of copper is 87%; Taking the copper content in the iron wrapped copper mixed ore as 100%, The content of copper in iron minerals is 45%, and the iron minerals are hematite and limonite;

[0038] Such as figure 1 Shown, a kind of dressing and smelting method of iron-encapsulated mixed copper ore, concrete steps are as follows:

[0039] (1) Crush and grind the iron-coated mixed copper ore until the mass percentage of -74μm grain size accounts for 80%, and adjust the slurry to a mass percentage concentration of 40%, and the iron-coated mixed copper ore per ton In the mine plan, add 800g vulcanizing agent (the vulcanizing agent is sodium sulfide), 600g collector (the collector is butyl xanthate) and 100g foaming agent (the foaming agent is No. 2 oil) in sequence, and carry out a roughing operation To obtain the first roughing conce...

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Abstract

The invention discloses a dressing and melting method for an iron coated type mixed copper ore and belongs to the technical field of dressing and melting metallurgy. The dressing and melting method disclosed by the invention comprises the following steps: performing flotation on the iron coated type mixed copper ore to obtain flotation copper concentrates and flotation tailings; performing magnetic separation on the flotation tailings to obtain iron coated copper-containing magnetic concentrates and low-grade copper-containing magnetic tailings; finely grinding the iron coated copper-containing magnetic concentrate and recycling a copper ore therein by means of high-temperature agitation leaching by adopting concentrated sulfuric acid as a leaching agent; mixing high-temperature ore pulp generated after the magnetic concentrates are leached with the copper-containing magnetic tailings; and further recycling the copper ore in the tailings by utilizing the afterheat and the remaining acid in the mixture. The dressing and melting method disclosed by the invention is used for recycling the copper ore in minerals in a multi-stage way, performing targeted treatment on the iron coated type mixed copper ore and extracting copper resources in the low-grade copper-containing magnetic tailings by utilizing the afterheat and the remaining acid, thereby economically and efficiently solvingthe technical problem that the iron coated type mixed copper ore is hard to recycle, and increasing the comprehensive utilization rate of the copper resources.

Description

technical field [0001] The invention relates to a method for dressing and smelting iron-wrapped mixed copper ore, which belongs to the technical field of ore dressing and metallurgy. Background technique [0002] Copper is an important non-ferrous metal, and its status in national economic construction is becoming more and more important. Copper mainly exists in the form of sulfide and oxide in nature. Common copper sulfide minerals with industrial mining value include chalcopyrite, chalcocite, bornite, copper blue, etc., and copper oxide minerals include malachite. , Azurite, Cuprite, Chrysocolla, etc. However, in the process of copper mining and processing, in addition to single copper sulfide and copper oxide ore, sulfide-oxidation mixed copper ore occupies a considerable proportion of copper ore resources. Therefore, in order to meet the needs of the national economy for copper metal, To reduce the external dependence of copper, the efficient development and utilizatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03B7/00B03B9/06B03C1/02B03D1/018B03D101/02B03D101/04B03D103/04
CPCB03B7/00B03B9/06B03C1/02B03D1/018B03D2201/02B03D2201/04B03D2203/04Y02W30/52
Inventor 丰奇成文书明白旭王涵李尧张谦韩广
Owner KUNMING UNIV OF SCI & TECH
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