Comprehensive recovering process of multimetal sulfide mineral

A recovery method and technology of sulfide ore, applied in chemical instruments and methods, improvement of process efficiency, photographic process, etc., can solve the problems of small sales radius, low zinc recovery rate, low metal recovery rate, etc., and improve the comprehensive recovery rate , The effect of simplifying the production process

Active Publication Date: 2007-07-18
ZIJIN MINING GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. When the flotation process is used to treat polymetallic sulfide ores, especially low-grade complex polymetallic sulfide ores, due to the complexity of the metal occurrence state in the ore and the fine particle size of copper and zinc intercalation, it is difficult to separate copper, zinc and cobalt. Most of the ores need to be finely ground, and the grade of the concentrate is low and the quantity is large; since the concentrate will produce a large amount of sulfuric acid during the smelting process, the added value of sulfuric acid is not high, and the sales radius is small, which determines that the smelter should not be located in the mine Therefore, there are problems of large transportation volume and long dist

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The polymetallic sulfide ore is ground to a particle size of 60%-0.074mm, and is subjected to sulfuration and roasting at 400°C for 3 hours, and the calcined sand is subjected to acid leaching and then magnetic separation. The comprehensive recovery rate of each substance is as follows:

[0026] Roasting temperature

Embodiment 2

[0028] The polymetallic sulfide ore is ground to a particle size of 60%-0.074mm, and is sulfated and roasted at 650°C for 3 hours, and the calcined sand is subjected to acid leaching and then magnetic separation. The comprehensive recovery rate of each substance is as follows:

[0029] Roasting temperature

Embodiment 3

[0031] The polymetallic sulfide ore is ground to a particle size of 60%-0.074mm and subjected to sulfate roasting at 720°C for 3 hours, and the calcined sand is subjected to acid leaching and then magnetic separation. The comprehensive recovery rate of each substance is as follows:

[0032] Roasting temperature

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PUM

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Abstract

The present invention discloses one kind of comprehensive polymetal sulfide mineral recovering process. The recovering process combines a roasting process after adding proper amount of lime and potassium chloride into raw mineral and a wet metallurgical process to recover Cu, Zn, Co, S, Fe, etc from the polymetal sulfide mineral. It can obtain electrolytic copper, electrolytic zinc, electrolytic cobalt, potassium sulfate, iron ore concentrate and other products, and has Cu and Zn recovering rate over 94 % and 92 % separately, simplified production process, raised comprehensive metal recovering rate and high resource utilization rate.

Description

1. Technical field [0001] The invention relates to a comprehensive recovery method for mineral materials, in particular to a comprehensive recovery method for polymetallic sulfide ores containing low-grade copper, cobalt, zinc, iron and the like. 2. Background technology [0002] Polymetallic sulfide ores containing copper, cobalt, zinc, iron, etc. usually adopt conventional flotation process to obtain copper concentrate, zinc concentrate, cobalt sulfur concentrate, etc. when comprehensively recovering these metals, and then transport the obtained concentrate to Smelters smelt and recover copper, zinc, cobalt, sulfur and iron, among others. There are following defects in this process: [0003] 1. When the flotation process is used to treat polymetallic sulfide ores, especially low-grade complex polymetallic sulfide ores, due to the complexity of the metal occurrence state in the ore, the fine particle size of copper and zinc intercalation makes it difficult to separate copp...

Claims

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Application Information

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IPC IPC(8): C22B1/06C22B3/08C22B3/20B03C1/02C25C1/00C22B15/00C22B23/00C22B19/00
CPCY02P10/20
Inventor 陈景河邹来昌罗吉束
Owner ZIJIN MINING GROUP
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