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A mineral processing method for recovering zinc ore from sulfur concentrate containing low-grade zinc

A beneficiation method and sulfur concentrate technology, which are applied in flotation, grain treatment, solid separation, etc., can solve the problems of few comprehensive recovery and utilization methods, poor comprehensive beneficiation index, and difficulty in separation and recovery. Strong ability and selectivity, ensuring flotation concentration, improving separation efficiency and accuracy

Active Publication Date: 2020-02-11
WESTERN MINING CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a solution for the prominent problems of low-grade zinc-containing sulfur concentrates, which can be comprehensively recycled and utilized, the traditional mineral processing technology is difficult to sort and recover, the sorting efficiency is low, and the comprehensive index of mineral processing is poor. A high-efficiency, stable, high-separation efficiency, strong adaptability, and good separation index beneficiation method for refractory zinc minerals in sulfur concentrates containing low-grade zinc, so that the zinc metal resources in such sulfur concentrates can be efficiently recycled and utilized

Method used

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  • A mineral processing method for recovering zinc ore from sulfur concentrate containing low-grade zinc
  • A mineral processing method for recovering zinc ore from sulfur concentrate containing low-grade zinc
  • A mineral processing method for recovering zinc ore from sulfur concentrate containing low-grade zinc

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Embodiment 1

[0020] Embodiment 1, in selecting other zinc-containing sulfur concentrates, 0.23% lead, 0.46% zinc, 44.10% iron, and 49.04% sulfur are selected; the main metal mineral is pyrite, and zinc is in the form of sphalerite. deposits, a small amount of gangue mineral is quartz.

[0021] refer to figure 1 , the selection steps are as follows:

[0022] 1) Add 500g / t of sodium sulfide and 4000g / t of lime into the mill, the pH of the slurry is about 11, and the ore that grinds the sulfur concentrate to -0.074mm particle size level accounts for 40% of the total ore mass;

[0023] 2) The grinding slurry obtained in step 1) is subjected to the first zinc roughing to obtain zinc rough concentrate I and zinc roughing I tailings, wherein copper sulfate 100g / t is added to the zinc roughing I slurry, and XKP- 007 dosage is 30g / t, 2# oil 18g / t;

[0024] 3) zinc roughing II, the zinc roughing I tailings obtained in step 2) are subjected to second roughing to obtain zinc rough concentrate II an...

Embodiment 2

[0031] Embodiment 2, the zinc-containing sulfur concentrate containing 0.19% lead, 0.52% zinc, 42.53% iron, and 46.18% sulfur in the zinc-containing sulfur concentrate; the main metal mineral is pyrite, and zinc is given in the form of sphalerite deposits, a small amount of gangue mineral is quartz.

[0032] refer to figure 1 , the selection steps are:

[0033] 1) Add 750g / t of sodium sulfide and 2000g / t of lime into the mill, the pH of the slurry is about 10, and the ore that grinds the sulfur concentrate to the particle size level of -0.074mm accounts for 50% of the total ore mass percentage;

[0034] 2) Zinc roughing I, the grinding slurry obtained in step 1) is subjected to the first zinc roughing to obtain zinc rough concentrate I and zinc roughing I tailings, wherein 200g of copper sulfate is added to the zinc roughing I pulp / t, XKP-007 dosage is 20g / t, 2# oil 10g / t;

[0035] 3) zinc roughing II, the zinc roughing I tailings obtained in step 2) are subjected to the s...

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Abstract

The invention discloses a mineral beneficiation method for recovering zinc minerals from sulfur concentrate containing low-grade zinc. The method comprises the steps of material preparation and ore grinding, zinc roughing, zinc rough concentrate concentration, zinc selection and the like. A selective collector XKP-007 special for marmatite has high collecting capability and selectivity for the zinc minerals in the sulfur concentrate, dewatering upward floating of the zinc minerals is enhanced, the zinc and sulfur separation efficiency is improved, and the purpose of recovering the valuable zinc minerals from the sulfur concentrate is achieved to the utmost extent; and accordingly, good zinc flotation indexes can be obtained from the sulfur concentrate containing the low-grade zinc, qualified zinc concentrate products are obtained, and novel and efficient zinc sulfide minerals are developed.

Description

technical field [0001] The invention relates to the technical field of non-ferrous metal ore flotation, in particular to a beneficiation method for recovering refractory zinc minerals from sulfur concentrates containing low-grade zinc. Background technique [0002] Zinc metal resources are one of my country's important strategic resources. With the rapid development of my country's national economy, the consumption of zinc resources in my country has increased rapidly, and the reserves of easy-to-handle, high-grade zinc-containing ores have decreased sharply. At present, zinc minerals are mainly recovered in the form of sphalerite, sphalerite and smithsonite, among which sulfide minerals such as sphalerite and sphalerite are the majority. In zinc-containing sulfide ores, zinc minerals are often closely associated with pyrite, pyrrhotite and other pyrites, and the mineral intercalation relationship is complex, and the difference in floatability between the two is small, espec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/012B03D1/08B03B1/00B03B1/04B02C23/06B03D101/02B03D103/02
CPCB02C23/06B03B1/00B03B1/04B03D1/012B03D1/085B03D2201/02B03D2203/02
Inventor 王金庆赖春华程武忠李世纯罗仙平翁存建王泰存其他发明人请求不公开姓名
Owner WESTERN MINING CO LTD
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