Method for separating lead and zinc from polymetallic copper sulfide ore

A copper sulfide ore and multi-metal technology, applied in the field of zinc, separation and removal of lead, can solve the problem that lead and zinc are difficult to separate from copper, and achieve the effect of improving electrolysis efficiency and preventing slurry precipitation

Active Publication Date: 2012-06-27
MEISHAN SHUNYING POWER BATTERY MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the problem that the harmful impurities lead and zinc in polymetallic copper sulfide ore are difficult to separate from copper in the prior art, and to provide a method that can effectivel

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  • Method for separating lead and zinc from polymetallic copper sulfide ore
  • Method for separating lead and zinc from polymetallic copper sulfide ore
  • Method for separating lead and zinc from polymetallic copper sulfide ore

Examples

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Embodiment 1

[0031] The method for separating and removing lead and zinc from the polymetallic copper sulfide ore enumerated by the present embodiment comprises the following steps: 80 objects containing Cu19.0%, Pb10.77%, and 25Kg of copper sulfide ore powder of Zn7.2% are placed in In the electrolytic cell, it is electrolyzed in a NaCl+HCl electrolyte system with a volume of 125L (the mass solid-to-liquid ratio of copper sulfide ore powder and NaCl+HCl electrolyte system is 1:4); then the electrolyte is separated from the copper ore powder, thereby Removal of lead and zinc from copper ore fines. In the above method, the molar concentration of NaCl in the electrolytic system is 3 mol / L; the dispersant NaCl is added to the NaCl+HCl electrolyte system 5 P 3 o 10 (sodium tripolyphosphate), Na 5 P 3 o 10 The dosage is 125g.

[0032]The electrolysis parameters are: the electrolysis temperature is 60°C, the pH value is 1.5, and the current density is 200 A / m 2 , the cell voltage is 3.0V....

Embodiment 2

[0048] The method for separating and removing lead and zinc from polymetallic copper sulfide ore enumerated by the present embodiment comprises the following steps: 200 meshes containing Cu19.0%, Pb10.77%, Zn7.2% copper sulfide ore powder 25Kg is placed In the electrolyzer used in the present invention, electrolyze in the NaCl+HCl electrolyte system that volume is 150L (the mass solid-liquid ratio of copper sulfide ore powder and NaCl+HCl electrolyte system is 1:5); Then electrolytic solution and copper ore powder Separation, thereby lead and zinc are removed from copper ore powder; In the above method, the molar concentration of NaCl in the electrolytic system is 3.5 mol / L; NaCl+HCl electrolyte system is added with dispersant Na 4 P 2 o 7 (sodium pyrophosphate), Na 4 P 2 o 7 The dosage is 150g.

[0049] The electrolysis parameters are controlled as follows: the electrolysis temperature is 80°C, the pH value is 3.5, and the current density is 800 A / m 2 , the cell voltage...

Embodiment 3

[0055] The method for separating and removing lead and zinc from polymetallic copper sulfide ore enumerated by the present embodiment comprises the following steps: first 120 objects containing Cu19.0%, Pb10.77%, and 25Kg of copper sulfide ore powder of Zn7.2% are placed In an electrolytic cell (the electrolytic cell is the same as in Example 2), electrolyze in a NaCl+HCl electrolyte system with a volume of 115L (the mass solid-to-liquid ratio of copper sulfide ore powder and NaCl+HCl electrolyte system is 1:3.6); then The electrolyte is separated from the copper ore powder to remove lead and zinc from the copper ore powder; in the above method, the molar concentration of NaCl in the electrolytic system is 3.8 mol / L; NaCl+HCl electrolyte system is added to the dispersed Agent C 12 h 25－ OSO 3 Na (sodium lauryl sulfate), C 12 h 25－ OSO 3 The amount of Na used was 115 g.

[0056] The electrolysis parameters are controlled as follows: the electrolysis temperature is 62°C, t...

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Abstract

The invention discloses a method for separating lead and zinc from polymetallic copper sulfide ore. The method for separating lead and zinc from polymetallic copper sulfide ore comprises an electrolysis step and a separation step, and particularly comprises the following steps of: putting copper core powder of 80-200 meshes into an electrolytic tank, and electrolyzing in an NaCl+HCl electrolyte system; and separating an electrolytic solution from the copper ore powder, wherein the electrolysis parameters are that: the electrolysis temperature is 60-80 DEG C, the pH value is 1.5-3.5, the current density is 200-600 A/m<2>, and the tank voltage is 3-5V; in the method, the electrolysis time is 2-8 hours; and the solid to liquid mass ratio of the copper ore powder to the NaCl+HCl electrolyte system is 1:(3.5-5.5). According to the method for separating lead and zinc from the polymetallic copper sulfide ore, the content of harmful impurities, lead and zinc, in copper ore can be lowered, and copper ore concentrate with high quality level is obtained.

Description

technical field [0001] The invention relates to the technical field of mineral processing, in particular to a method for separating and removing lead and zinc from polymetallic copper sulfide ores. Background technique [0002] Copper is one of the important non-ferrous metals. Most of the copper in the world is extracted from copper ore. The methods of extracting copper from copper ore are mainly divided into two categories: fire method and wet method. Pyrochemical copper smelting has the characteristics of large production capacity and good quality of electric copper. At present, most of the copper in the world is produced by pyrometallurgy. The technological process of pyrometallurgy copper smelting mainly includes: copper sulfide concentrate is obtained by beneficiation and roasting of copper ore (copper sulfide concentrate generally contains 20-30% metallic copper), and copper sulfide concentrate is smelted by sulfur making to obtain copper sulfide concentrate contain...

Claims

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Application Information

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IPC IPC(8): C25C1/12
CPCC25C1/16C25C1/18C25C7/00C25C7/02
Inventor 赵林龙泽彬
Owner MEISHAN SHUNYING POWER BATTERY MATERIALS CO LTD
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