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Copper, lead and zinc separation method for multi-metal gold-bearing ores

A separation method and multi-metal technology, applied in the direction of solid separation, wet separation, chemical instruments and methods, etc., can solve the problems of difficult separation of copper and lead, and achieve the effect of reducing pollution and reducing environmental pollution

Inactive Publication Date: 2016-11-23
CHANGCHUN GOLD RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a copper-lead-zinc separation method for polymetallic gold-containing ores to solve the problem of difficult separation of copper and lead in polymetallic beneficiation, and at the same time obtain qualified products of copper, lead, zinc and sulfur, and gold and silver are priced Recycle

Method used

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  • Copper, lead and zinc separation method for multi-metal gold-bearing ores
  • Copper, lead and zinc separation method for multi-metal gold-bearing ores
  • Copper, lead and zinc separation method for multi-metal gold-bearing ores

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Include the following steps:

[0019] (1) Grinding and grading operations:

[0020] Grind complex polymetallic gold-bearing ores with a copper content of 0.2-1.0%, a lead content of 0.2-5.0%, and a zinc content of 0.2-5.0% to a fineness of -0.074mm and a content of 55%-70% for gravity separation ;

[0021] (2) Gravity separation tailings mixed flotation operation:

[0022] Adjust the water for the gravity separation tailings in step (1) to a concentration of 28% by mass; first add CaO to make the pH value of the pulp reach 8.0, then add 40 g / t of butyl xanthate, 40 g / t of butyl ammonium black drug and No. Oil 20g / t, one roughing, three times sweeping and one beneficiation operation to obtain mixed concentrate;

[0023] (3) Mixed concentrate cyanidation operation:

[0024] Grind the mixed concentrate in step (2) to a fineness of -0.045 mm and a content of 85%, adjust the mass percentage concentration of the pulp to 30% with water, add CaO to make the pH of the pulp 1...

Embodiment 2

[0028] Include the following steps:

[0029] (1) Grinding and grading operations:

[0030] Grind complex polymetallic gold-bearing ores with a copper content of 0.2-1.0%, a lead content of 0.2-5.0%, and a zinc content of 0.2-5.0% to a fineness of -0.074mm and a content of 55%-70% for gravity separation ;

[0031] (2) Gravity separation tailings mixed flotation operation:

[0032] Adjust the water for the gravity separation tailings in step (1) to a concentration of 32% by mass; first add CaO to make the pH value of the pulp reach 8.5, then add 60 g / t of butyl xanthate, 50 g / t of butyl ammonium black drug and No. Oil 35g / t, one roughing, three times sweeping and one beneficiation operation to obtain mixed concentrate;

[0033] (3) Mixed concentrate cyanidation operation:

[0034] Grind the mixed concentrate in step (2) to a fineness of -0.045 mm and a content of 90%, adjust the mass percentage concentration of the pulp to 35% with water, add CaO to make the pH of the pulp 1...

Embodiment 3

[0038] Include the following steps:

[0039] (1) Grinding and grading operations:

[0040] Grind complex polymetallic gold-bearing ores with a copper content of 0.2-1.0%, a lead content of 0.2-5.0%, and a zinc content of 0.2-5.0% to a fineness of -0.074mm and a content of 55%-70% for gravity separation ;

[0041] (2) Gravity separation tailings mixed flotation operation:

[0042] Adjust the water for the gravity separation tailings in step (1) to a concentration of 35% by mass; first add CaO to make the pH value of the slurry reach 9.0, then add 80 g / t of butyl xanthate, 60 g / t of butylammonium black drug and No. Oil 50g / t, carry out one roughing three times sweeping one time beneficiation operation, obtain the mixed concentrate;

[0043] (3) Mixed concentrate cyanidation operation:

[0044]Grind the mixed concentrate in step (2) to a fineness of -0.045 mm and a content of 95%, adjust the mass percentage concentration of the pulp to 40% with water, add CaO to make the pH o...

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Abstract

The invention relates to a copper, lead and zinc separation method for multi-metal gold-bearing ores, and belongs to a copper, lead and zinc separation method for ores. The method comprises ore grinding and grading operation, gravity separation tailings mixing floatation operation, mixed concentrate cyaniding operation and copper, lead and zinc separation operation for leached slag: adding CaO to make the pH value of ore pulp at 8.5 to 9.5, then adding ZnSO4, SN9#, Z-200 and 2# oil for once rough concentration, trinary scavenging and trinary concentration to obtain copper and lead concentrates and copper and lead tailings, and treating the copper and lead concentrates to obtain lead concentrates and copper concentrates; and continuously adding CaO into the copper and lead tailings to make the pH value of the ore pulp at 9.5 to 10.5, and then adding CuSO4, sodium ethyl xanthate, Z-200 and 2# oil for once rough concentration, trinary scavenging and trinary concentration to obtain zinc concentrates and sulfur concentrates. The method solves the problem that copper, lead and zinc in multi-metal mineral separation are hard to separate; furthermore, qualified products of copper, lead, zinc and sulfur are obtained, and gold and silver are recycled by price; and the recycling rate of gold and silver is increased, and the environmental pollution is alleviated.

Description

technical field [0001] The invention belongs to a copper-lead-zinc separation method of ore, in particular to a copper-lead-zinc separation method of multi-metal gold-containing ore. Background technique [0002] With the development of the national economy and the continuous development and utilization of mineral resources, the demand for copper, lead and zinc continues to increase, and more and more attention has been paid to multi-metal beneficiation. At present, the components of copper-lead-zinc ores in various countries in the world are becoming more and more complex. Minerals are densely symbiotic, and the embedded relationship is complex and changeable. Copper-lead-zinc polymetallic mineral processing has become one of the difficult problems in mineral processing. [0003] The tailings of complex polymetallic gold-bearing ores after cyanidation leaching contain not only a small amount of gold, silver and other elements, but also copper, lead, zinc, sulfur and other v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B7/00B03B1/00B03B1/04B03D1/012B03D1/002B03D101/06B03D103/02
CPCB03B7/00B03B1/00B03B1/04B03D1/002B03D1/012B03D2201/06B03D2203/02
Inventor 郑艳平王艳郑晔赵明福郝福来
Owner CHANGCHUN GOLD RES INST
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