Beneficiation method for high-tin-content multi-metal sulfide ores

A beneficiation method and multi-metal technology, applied in the direction of chemical instruments and methods, wet separation, solid separation, etc., can solve the problems of excessive crushing of minerals, excessive ore slime, low recovery rate of tin minerals, etc., and achieve the improvement of copper recovery rate, The effect of improving tin recovery rate and improving comprehensive recycling rate

Active Publication Date: 2014-12-24
蒙自矿冶有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process has the advantages of simple process, high flotation recovery rate, and easy operation, but there are also the following problems: (1) The particle size distribution of grinding products is uneven, there are many coarse-grained and ultra-fine-grained slimes, and the d

Method used

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  • Beneficiation method for high-tin-content multi-metal sulfide ores

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Taking a high-tin polymetallic sulfide ore in Yunnan as an example for mineral processing, the tin-containing sulfide ore in Yunnan includes the following mass percentage components: tin 0.56wt.%, copper 0.24wt.wt.%, lead 0.15wt.%, zinc 0.91 wt.%, Sulfur 19.56wt.%, Cassiterite 0.54wt.%, Zorotite 0.05wt.%, Chalcopyrite 0.62wt.%, Ferric sphalerite 0.72wt.%, Pyrrhotite 51.04wt.% , siderite 1.66wt.%, quartz 8.43wt.%, carbonate minerals 7.62wt.%, biotite 6.93wt.%, chlorite 3.87wt.%.

[0020] Such as figure 1 Shown, the beneficiation method of this high-tin polymetallic sulfide ore, its concrete steps are as follows:

[0021] Step 1: First, crush the high-tin polymetallic sulfide ore raw ore to a particle size below 15-20mm, then put the crushed high-tin polymetallic sulfide ore into a rod mill for open-circuit grinding, and the rod mill discharges the ore to be classified by a hydrocyclone Overflow and sand settling, the overflow enters copper-lead mixed flotation, sand se...

Embodiment 2

[0027] Taking a high-tin polymetallic sulfide ore in Guangxi as an example for mineral processing, the high-tin polymetallic sulfide ore in Guangxi includes the following mass percentage components: tin 0.73wt.%, lead 0.79wt.%, zinc 1.5wt.%, sulfur 18.2 wt.%, the raw ore cassiterite intercalation particle size is between 8 and 180 microns, and the tin metal distribution of tin-containing particles with a dissociation degree of more than 90% when broken to less than 3 mm is 90%.

[0028] Such as figure 1 Shown, the beneficiation method of this high-tin polymetallic sulfide ore, its concrete steps are as follows:

[0029] Step 1: First, crush the high-tin polymetallic sulfide ore raw ore to a particle size below 15-20mm, then put the crushed high-tin polymetallic sulfide ore into a rod mill for open-circuit grinding, and the rod mill discharges the ore to be classified by a hydrocyclone Overflow and sand settling, the overflow enters copper-lead mixed flotation, sand settling i...

Embodiment 3

[0034] Taking a high-tin polymetallic sulfide ore in Guangxi as an example for mineral processing, the high-tin polymetallic sulfide ore in Guangxi includes the following mass percentage components: tin 1.53wt.%, lead 0.78wt.%, antimony 0.69wt.%, zinc 2.5 wt.%, sulfur 17.2wt.%, raw ore cassiterite intercalation particle size is relatively coarse, between 35-250 microns, and the tin metal distribution of tin-containing particles with a dissociation degree of more than 85% when broken to less than 3 mm reaches 90%.

[0035] Such as figure 1 Shown is the beneficiation method of this high-tin polymetallic sulfide ore, and its concrete steps are as follows:

[0036] Step 1: First, crush the high-tin polymetallic sulfide ore raw ore to a particle size below 15-20mm, then put the crushed high-tin polymetallic sulfide ore into a rod mill for open-circuit grinding, and the rod mill discharges the ore to be classified by a hydrocyclone Overflow and sand settling, the overflow enters co...

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Abstract

The invention relates to a beneficiation method for high-tin-content multi-metal sulfide ores, and belongs to the technical field of ore processing engineering. The high-tin-content multi-metal sulfide ores are subjected to rod milling ore discharging and hydraulic cyclone grading to obtain overflow and setting sand, the overflow enters copper lead for mixed flotation, the setting sand is subjected to high-frequency vibration fine sieving and is graded again, and undersize products after the hydraulic cyclone overflowing and the high-frequency vibration fine sieving grading are merged into ore milling products containing 60 percent of particles with the granularity being smaller than 0.074mm, and the ore milling products enter flotation operation; the ore grinding products are subjected to flotation, magnetic separation and reselection in steps, and then, lead concentrates, copper concentrates, zinc concentrates, pyrrhotites, low-arsenic-content sulfur concentrate, high-grade tin concentrates, tin concentrates and rich-tin middlings are respectively produced. The beneficiation method provided by the invention has the advantages that the tin ores can be recovered to the maximum degree, meanwhile, the recovery of all valuable metal sulfide ores can be considered, the valuable minerals in the ores are recovered to the maximum degree, and the integral recovery and utilization rate of ore resources is improved.

Description

technical field [0001] The invention relates to a beneficiation method of high-tin polymetallic sulfide ore, which belongs to the technical field of mineral processing engineering. Background technique [0002] my country's tin-containing sulfide ore tin minerals are unevenly distributed in particle size, and the tin minerals are very brittle and easily form slime during the grinding process, which cannot be recycled. This requires the grinding and grading process to adopt selective coarse grinding, high-efficiency classification, and coarse-grained regrinding methods to avoid over-grinding of cassiterite as much as possible. At the same time, the flotation method can effectively Recycle. [0003] At present, the beneficiation of tin-containing polymetallic sulfide ores is mainly based on the process of flotation-heavy combination and one-time grinding. The traditional grinding and grading process is adopted for grinding and classification, and the steel ball mill is used t...

Claims

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Application Information

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IPC IPC(8): B03B7/00
Inventor 覃伟暖黄伟忠磨学诗邓位鹏农升勤姚贵明
Owner 蒙自矿冶有限责任公司
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