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Method for recovering easily-oxidized copper alloy scrap by adopting novel covering agent

A technology of covering agent and copper oxide, which is applied in the direction of improving process efficiency and can solve the problem of high recycling cost

Inactive Publication Date: 2021-05-11
国工恒昌新材料沧州有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Existing easy-to-oxidize copper alloy wastes are generally recovered by electrolysis, and the recovery cost is high. Therefore, the present invention proposes a method for recovering easy-to-oxidize copper alloy wastes using a new covering agent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A method for reclaiming easily oxidizable copper alloy waste by adopting a novel covering agent, comprising the following steps:

[0042] S1, sorting and removing impurities from the collected scrap copper;

[0043] S2, pre-treat the sorted waste miscellaneous copper, put the waste miscellaneous copper into the cleaning bucket, then install an ultrasonic generator in the cleaning bucket, and then add acetic acid to the cleaning bucket to make the acetic acid overflow the waste miscellaneous copper surface;

[0044] S3, according to the composition of the target product, the ratio of various scrap copper is carried out;

[0045] S4, sending each material to the smelting furnace according to the ratio for smelting and refining;

[0046] Carry out pre-furnace analysis on the melt composition, and perform flux removal and refining for elements exceeding the standard. The melting temperature is 1010°C. First, tin removal and refining are carried out, and the reaction time ...

Embodiment 2

[0053] A method for reclaiming easily oxidizable copper alloy waste by adopting a novel covering agent, comprising the following steps:

[0054] S1, sorting and removing impurities from the collected scrap copper;

[0055] S2, pre-treat the sorted waste miscellaneous copper, put the waste miscellaneous copper into the cleaning bucket, then install an ultrasonic generator in the cleaning bucket, and then add acetic acid to the cleaning bucket to make the acetic acid overflow the waste miscellaneous copper surface;

[0056] S3, according to the composition of the target product, the ratio of various scrap copper is carried out;

[0057] S4, sending each material to the smelting furnace according to the ratio for smelting and refining;

[0058] Carry out pre-furnace analysis of the melt composition, and perform flux removal and refining for elements exceeding the standard. The melting temperature is 1050°C. , Add new covering agent;

[0059] The new covering agent comprises t...

Embodiment 3

[0066] A method for reclaiming easily oxidizable copper alloy waste by adopting a novel covering agent, comprising the following steps:

[0067] S1, sorting and removing impurities from the collected scrap copper;

[0068] S2, pre-treat the sorted waste miscellaneous copper, put the waste miscellaneous copper into the cleaning bucket, then install an ultrasonic generator in the cleaning bucket, and then add acetic acid to the cleaning bucket to make the acetic acid overflow the waste miscellaneous copper surface;

[0069] S3, according to the composition of the target product, the ratio of various scrap copper is carried out;

[0070] S4, sending each material to the smelting furnace according to the ratio for smelting and refining;

[0071] Carry out pre-furnace analysis of the melt composition, and perform flux removal and refining for elements exceeding the standard. The melting temperature is 1120°C. , Add new covering agent;

[0072] The new covering agent comprises t...

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PUM

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Abstract

The invention belongs to the field of copper alloy scrap recovery, particularly discloses a method for recovering easily-oxidized copper alloy scrap by adopting a novel covering agent, and provides the following scheme that the method comprises the following steps of pretreating sorted scrap copper, putting the scrap copper into a cleaning barrel, arranging an ultrasonic generator in the cleaning barrel, and adding acetic acid into the cleaning barrel to enable the acetic acid to overflow the surface of the scrap copper; proportioning various scrap copper according to the composition of a target product; conveying materials to a smelting furnace according to the proportion to be smelted and refined; conducting on-the-spot sample analysis on the melt composition, and reacting for 15-30 minutes; and after stirring and standing, conducting iron removal and refining, reacting for 15-30 minutes, stirring, and adding the novel covering agent. The covering agent can effectively cover and prevent oxidation of easily-oxidized elements and reduce generation of slag, scaling of a hearth and a furnace end is little, the slag is loose and easy to clean, the copper content in the slag is effectively reduced, and the metal loss is reduced.

Description

technical field [0001] The invention relates to the technical field of recycling copper alloy waste, in particular to a method for recycling easily oxidized copper alloy waste by using a novel covering agent. Background technique [0002] Copper is the oldest metal. Because of its excellent physical properties, mechanical properties, easy formability, and corrosion resistance, copper alloys occupy an important position in the history of human development. After mining and smelting, copper ore is manufactured into copper alloys for various purposes, and is used in various industries and various occasions. Due to the corrosion resistance of copper and copper alloys, they are retained in the form of scrap copper after their service ends. Come down and be another resource. [0003] Some waste copper is easy to separate and identify, such as waste cables and wires, and some waste copper is not evenly mixed like minerals, but it is also difficult to separate, and it is combined w...

Claims

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Application Information

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IPC IPC(8): C22B7/00C22B1/00C22B9/10C22B15/14
CPCC22B1/005C22B7/001C22B9/10C22B15/0028C22B15/006Y02P10/20
Inventor 李永华
Owner 国工恒昌新材料沧州有限公司