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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 soluble in water and seriously pollute the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Waste refractory bricks from 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 sample is less than 0.074mm, and then the finely ground slurry is poured into the flotation tank for flotation test; , After fully stirring, add 200g / t of kerosene as an auxiliary collector and stir for 8 minutes, then add 400g / t of pentaxanthate as a collector and stir for 4 minutes, then add 50g / t of kerosene as a foaming agent After terpineol was stirred for 2min, flotation 4min obtained a flotation concentrate and a flotation tailing; b, secondary flotation: in the flotation tailings, continue to add pentanexanthate of 200g / t and stir for 4min, Add the terpineol of 30g / t as foaming agent again and stir for 2min, and obtain secondary flotation concentrate and secondary flotation tailings after flotation for 4min, and the secondary flotation concentrate will return to ...

Embodiment 2

[0040]Waste magnesia-chromium refractory bricks from a copper converter in Hubei were used as raw materials, and the copper content of the refractory bricks was 4.82%. The sample is first crushed-ball milled until 82% of the sample is less than 0.074mm, and then the finely ground slurry is poured into the flotation tank for flotation test; , After fully stirring, add 300g / t of sodium sulfide as a vulcanizing agent and stir for 8 minutes, then add 200g / t of kerosene as an auxiliary collector and stir for 8 minutes, then add 400g / t of pentamol as a collector Stir 4min after medicine, add the terpineol of 60g / t as foaming agent at last and stir 2min, flotation 5min obtains 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 in the tailings and stir for 8 minutes, then add 200g / t of pentaxanthate and stir for 4 minutes, then add 30g / t of terpineol as a foaming ...

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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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