Method for removing copper of crude lead through cooling

A crude lead and lead pot technology, applied in the field of crude lead decopper, can solve the problems of low production efficiency and inability to remove copper in large quantities, and achieve the effects of low cost, easy processing and simple method

Inactive Publication Date: 2015-06-17
WUHU MINTAI COPPER IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problem that in the subsequent copper removal process of the existing crude lead smelting, copper cannot be removed in large quantities effectively, resulting in low production efficiency. The principle that the solubility of the medium decreases as the temperature decreases, and the purpose of decoppering in large quantities is achieved by reducing the temperature.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A method for cooling and removing copper of crude lead, comprising the following steps:

[0025] (1) Preparation of solution:

[0026] Release the crude lead solution from the blast furnace and transport it to the smelting equipment through the lead holding pot;

[0027] (2) cooling:

[0028] Slowly cool down the crude lead solution to 680K;

[0029] (3) Impurity removal:

[0030] Use copper removal equipment to remove copper floating on the lead solution;

[0031] (4) Heating:

[0032] Heat the crude lead solution to 1000-1050K;

[0033] (5) Secondary cooling:

[0034] Slowly cool down the crude lead solution to 680K;

[0035] (6) Secondary impurity removal:

[0036] Copper floating on the lead solution is removed by copper removal equipment.

Embodiment 2

[0038] A method for cooling and removing copper of crude lead, comprising the following steps:

[0039] (1) Preparation of solution:

[0040] Release the crude lead solution from the blast furnace and transport it to the smelting equipment through the lead holding pot;

[0041] (2) cooling:

[0042] Slowly cool down the crude lead solution to 690K;

[0043] (3) Impurity removal:

[0044] Use copper removal equipment to remove copper floating on the lead solution;

[0045] (4) Heating:

[0046] Heat the crude lead solution to 1000-1050K;

[0047] (5) Secondary cooling:

[0048] Slowly cool down the crude lead solution to 690K;

[0049] (6) Secondary impurity removal:

[0050] Copper floating on the lead solution is removed by copper removal equipment.

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PUM

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Abstract

The invention discloses a method for removing copper of crude lead through cooling, which belongs to the field of non ferrous metal. The method comprises the following steps: 1)preparing a solution; 2)cooling; 3)removing impurities; 4)heating; 5)performing secondary cooling; and performing secondary impurity removal. The method solves the problem that in the subsequent copper removal process, the current crude lead smelting can not effectively remove large-scale copper, so that production efficiency is low, and the method has the advantages of simple process, low cost and easy processing.

Description

technical field [0001] The invention belongs to the field of nonferrous metals, and more specifically relates to a method for removing copper from crude lead. Background technique [0002] Lead is widely used in industry at present, especially in the electrical industry sector, where it is mainly used to manufacture batteries, various cable protection skins, and fuses. Lead plates and lead pipes are often used as acid-resistant linings and anti-corrosion covers for smelting and chemical equipment, and lead is also used as protective layers and protective screens in the atomic energy industry and X-rays. Lead compounds are used in the pigment industry, glass industry, petroleum industry and pharmaceutical sectors. However, in the process of processing and refining lead, it contains copper and other harmful substances. In the subsequent process of crude lead smelting, copper needs to be removed to improve the purity of lead. Contents of the invention [0003] Aiming at the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B13/10
Inventor 颜承龙
Owner WUHU MINTAI COPPER IND
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