Method for flotation and recovery of metal copper in copper smelting wasted fireproof materials

A technology for discarding refractory materials and metallic copper, which is applied in the directions of flotation, process efficiency improvement, solid separation, etc., can solve problems such as environmental pollution, achieve the effect of improving copper grade, inhibiting gangue magnesia, and avoiding large consumption

Inactive Publication Date: 2016-12-07
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Hexavalent chromium compounds are easily solubl

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0036] Example 1:

[0037] The waste refractory bricks of a copper converter in Guangdong are used as raw materials, and the copper content of the refractory bricks is 5.48%. The sample is first crushed-ball-milled until 86% of the samples are smaller than 0.074mm, and then the ground slurry is poured into the flotation cell for flotation test; a. One flotation: the sample poured into the flotation cell is slurried , After fully stirring, add 200g / t kerosene as an auxiliary collector and stir for 8 minutes, then add 400g / t xanthate as a collector and stir for 4 minutes, and then add 50g / t as a foaming agent. After terpineol, stir for 2 minutes, flotation for 4 minutes to obtain primary flotation concentrate and primary flotation tailings; b. Secondary flotation: continue to add 200g / t of pentoxanthate to the primary flotation tailings and stir for 4 minutes, Then add 30g / t terpineol as a foaming agent, stir for 2 minutes, flotation for 4 minutes to obtain secondary flotation ...

Example Embodiment

[0039] Example 2:

[0040]The waste magnesia-chromium refractory bricks of a copper converter in Hubei are used as raw materials, and the copper content of the refractory bricks is 4.82%. The sample is first crushed-ball-milled until 82% of the sample is smaller than 0.074mm, and then the ground slurry is poured into the flotation cell for flotation test; a. One flotation: the sample poured into the flotation cell is slurried , After fully stirring, add 300g / t sodium sulfide as a vulcanizing agent and stir for 8 minutes, then add 200g / t kerosene as an auxiliary collector and stir for 8 minutes, and then add 400g / t pentoxide as a collector. After stirring for 4 minutes, finally adding 60g / t terpineol as a foaming agent, stirring for 2 minutes, and flotation for 5 minutes to obtain primary flotation concentrate and primary flotation tailings; b. Secondary flotation: after primary flotation Continue to add 150g / t of sodium sulfide as a vulcanizing agent to the tailings and stir ...

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PUM

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Abstract

The invention discloses a method for flotation and recovery of metal copper in copper smelting wasted fireproof materials. According to the method for flotation and recovery of the metal copper in the copper smelting wasted fireproof materials, after copper smelting wasted fireproof material raw ore is crushed, wet type ball milling is conducted; and ore pulp is subjected to flotation separation with kerosene as an auxiliary collecting agent, xanthate as a collecting agent, terpilenol as a foaming agent and sodium hexametaphosphate as an inhibitor, and flotation concentrates and flotation tailings are obtained. The method solves the problem of stacking of existing copper smelting wasted fireproof bricks and can also comprehensively utilize the wasted fireproof brick resource and turn waste into wealth.

Description

technical field [0001] The invention belongs to the field of recycling and utilization of copper smelting waste refractory materials, and in particular relates to a method for recovering metal copper in copper smelting waste refractory materials by flotation. Background technique [0002] Waste refractory material is a large amount of industrial waste that is extremely difficult to handle and extremely unfriendly to the environment. According to statistics, the annual waste of refractory materials in my country alone is more than 8 million tons. Except for a very small number of waste refractory materials that can be returned to the production line for reuse, most of the waste refractory materials are typically disposed of by burial or downgrading. It not only takes up valuable land resources, but also causes waste of available resources and potential environmental pollution. [0003] At present, the refractory materials for non-ferrous metal smelting furnaces are mainly al...

Claims

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Application Information

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IPC IPC(8): B03D1/018C22B7/00C22B15/00B03D101/02B03D101/04B03D101/06B03D103/02
CPCB03D1/018B03D2201/02B03D2201/04B03D2201/06B03D2203/02C22B7/005C22B15/00Y02P10/20
Inventor 焦芬刘维韩俊伟覃文庆蔡练兵徐探薛凯张添福
Owner CENT SOUTH UNIV
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