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A method and device for pickling copper oxide on the surface of drawn copper material

A technology for copper oxide and copper materials, applied in the field of metal oxide pickling, can solve the problems of pungency, pollution, yellow smoke, etc., and achieve the effect of reducing the cost of pickling and simple operation process.

Active Publication Date: 2019-06-14
南京雷泰克材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The pickling solution with traditional formula will not only produce pungent acid mist but also yellow smoke during operation, and if the pickling solution is discharged without treatment, it will cause serious pollution

Method used

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  • A method and device for pickling copper oxide on the surface of drawn copper material
  • A method and device for pickling copper oxide on the surface of drawn copper material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A method for pickling copper oxide on the surface of a drawn copper material, comprising the following steps:

[0024] S01: Put the drawn copper material into the ultrasonic cleaning tank 1 with citric acid solution for cleaning, the citric acid solution reacts with the copper oxide on the surface of the drawn copper material to form copper citrate; S02: Put the copper citrate in the ultrasonic cleaning tank in S01 The solid-liquid mixture is transferred to the three-legged centrifuge 2 for solid-liquid separation, and the solid is separated and reclaimed; S03: the liquid obtained in S02 is transferred to the stirring reaction tank 3, and then solid citric acid, The mixture of oxalic acid solid and flocculant, adding oxalic acid solid, can produce copper oxalate precipitation and citric acid solution, adding flocculant, can accelerate the rate of precipitation formation; S04: pass the mixture obtained by S03 into plate and frame filter press 4 Carry out solid-liquid sep...

Embodiment 2

[0027] A method for pickling copper oxide on the surface of a drawn copper material, comprising the following steps:

[0028] S01: Put the drawn copper material into the ultrasonic cleaning tank 1 with citric acid solution for cleaning, the citric acid solution reacts with the copper oxide on the surface of the drawn copper material to form copper citrate; S02: Put the copper citrate in the ultrasonic cleaning tank in S01 The solid-liquid mixture is transferred to the vibrating screen 2 for solid-liquid separation, and the solid is separated; S03: the liquid obtained in S02 is transferred to the stirring reaction tank 3, and then the mixture of citric acid solid, oxalic acid solid and flocculant is added, Adding solid oxalic acid can generate copper oxalate precipitation and citric acid solution, and adding a flocculant can accelerate the rate of precipitation formation; S04: pass the mixture obtained from S03 into the three-legged centrifuge 4 for centrifugation, and recover t...

Embodiment 3

[0032] A method for pickling copper oxide on the surface of a drawn copper material, comprising the following steps:

[0033] S01: Put the drawn copper material into the ultrasonic cleaning tank 1 with citric acid solution for cleaning, the citric acid solution reacts with the copper oxide on the surface of the drawn copper material to form copper citrate; S02: Put the copper citrate in the ultrasonic cleaning tank in S01 The solid-liquid mixture is transferred to the top suspension centrifuge 2 for solid-liquid separation, and the solids are separated; S03: transfer the liquid obtained in S02 to the stirring reaction tank 3, and then add citric acid solids, oxalic acid solids and flocculants The mixture, adding oxalic acid solid, can generate copper oxalate precipitation and citric acid solution, add flocculant, can accelerate the speed of precipitation generation; S04: pass the mixture that S03 obtains in the three-legged centrifuge 4 and carry out centrifugal operation, and ...

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Abstract

The invention discloses an acid pickling method and an acid pickling device for copper oxide on a surface of a drawing copper material. The acid pickling method includes the steps of: S01) cleaning the drawing copper material in a supersonic cleaning trough filled with a citric acid solution; S02) moving a solid and liquid mixture in the supersonic cleaning trough to a first solid and liquid separator to perform solid and liquid separation, and collecting the solid; S03) moving the liquid obtained in the S02) into a stirring reaction tank and adding a mixture of solid citric acid, solid oxalic acid and a flocculant; S04) feeding the mixture obtained in the step S03) into a second solid and liquid separator to perform solid and liquid separation, and collecting the solid; and S05) feeding a liquid, obtained in the step S04), to the supersonic cleaning trough in the step S01), thus completing circulating operation. The acid pickling method and the acid pickling device have simple processes and simple equipment structure. Raw materials for cleaning are economical and are easy to obtain, so that the method has no emission of waste liquid and allows circulating use. The method and device have significant environment protective advantages.

Description

technical field [0001] The invention relates to a pickling method and device, in particular to a method and device for pickling copper oxide on the surface of drawn copper materials, and belongs to the field of metal oxide pickling. Background technique [0002] The surface of the metal reacts easily with oxygen in the air, and metal oxides are formed on the surface of the metal. The method of using an acid solution to remove scale and rust on the steel surface is called pickling, which is a method of cleaning the metal surface. The pickling solution of the traditional formula will not only produce pungent acid mist during operation, but also produce yellow smoke, and if the pickling solution is discharged without treatment, it will cause serious pollution. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a copper oxide pickling method and device on the surface of drawn copper materials with simple operation proc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23G1/10C23G1/36C23G3/00
CPCC23G1/103C23G1/36C23G3/00
Inventor 韩冰蒋麒麟马仲凯范维康邹一朱竹旺谢世伟
Owner 南京雷泰克材料科技有限公司
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