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Copper-tin ore separation process

A separation and process technology, applied in the field of copper-tin ore separation process, can solve the problems of grinding cost, high cost management cost of flotation reagents, difficulty in realizing the maximum comprehensive recovery of valuable metals, and difficulty in ensuring the economic benefits of enterprises, etc. , to achieve the effect of reducing production cost, high selection grade and saving storage capacity

Active Publication Date: 2022-04-12
CENT SOUTH UNIV +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The traditional cassiterite beneficiation process is relatively simple, mainly based on shaker gravity separation, but the ore contains a variety of sulfide minerals that interfere with the recovery of cassiterite, and the separation is difficult
② With the mining of resources, the grade of each metal in the raw ore is low, and it is difficult to realize the maximum comprehensive recovery of valuable metals. At the same time, the grinding cost, flotation reagent cost, and management cost of the concentrator are still high, and it is difficult to ensure the economic benefits of the enterprise. maximize

Method used

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  • Copper-tin ore separation process
  • Copper-tin ore separation process
  • Copper-tin ore separation process

Examples

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Embodiment 1

[0042] A copper-tin ore raw ore: Cu grade 0.85%, Sn grade 0.38%, Ag grade 45.30g / t, main metal minerals are chalcopyrite, cassiterite, pyrite, a small amount of sphalerite, non-metallic minerals such as quartz, Sericite, feldspar, calcite, kaolinite, etc. are the main ones.

[0043] Use the copper-tin ore sorting system to process the ore, and the specific steps are as follows:

[0044] Feed the raw ore into the crusher 5, crush it to -15mm, and sieve it through the grading screen 6 to obtain two grades of -0.5mm and +0.5mm~-15mm, and feed the ore with the grade of +0.5mm~-15mm into the Dense medium cyclone 7, with an inlet pressure of 0.14MPa and a combined density of 2.15g / cm 3 Sorting under conditions to obtain heavy products and light products, and then the heavy products and -0.5mm particle size raw ore are combined and fed into the first ball mill 8.

[0045] Grind the ore to -0.074mm to account for 75%, adjust the mass concentration of the pulp to 40%, feed it into th...

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Abstract

The invention relates to the technical field of copper-tin ore beneficiation, in particular to a copper-tin ore separation process which is characterized by comprising the following separation steps: (1) dense medium separation: crushing raw ore of copper-tin ore, and sequentially removing light-specific-gravity minerals with the specific gravity lower than that of copper minerals and tin minerals in the ores; (2) copper recovery: carrying out copper flotation on the ore pulp subjected to ore grinding treatment to obtain copper concentrate and copper tailings; (3) tin recovery: regrinding the copper tailings, feeding the copper tailings into a table concentrator, and separating to obtain tin rough concentrate, tin middlings and tailings; and (4) tin rough concentrate desulfurization: carrying out desulfurization flotation on the obtained tin rough concentrate, and separating to obtain tin concentrate and sulfur concentrate. The method has the advantages that the selected grade is high, the concentrate index is ensured, the production cost is reduced, the economic benefit is improved and the like.

Description

technical field [0001] The invention relates to the technical field of copper-tin ore beneficiation, in particular to a copper-tin ore separation process with high selected grade, guaranteed concentrate index, reduced production cost and improved economic benefit. Background technique [0002] As we all know, tin is a silver-white metal with low melting point, good plasticity, corrosion resistance, fatigue resistance, non-toxicity, etc. It is widely used in various fields of national economy and national defense construction. [0003] At present, the vein tin ore mined in my country is mainly tin-sulfide ore, and copper-tin ore is one of them. There are two deficiencies in the process of copper-tin ore sorting: ① Cassiterite in copper-tin ore is often symbiotic with copper minerals and pyrite (pyrite, pyrrhotite). The traditional cassiterite beneficiation process is relatively simple, mainly based on shaker gravity separation, but the ore contains a variety of sulfide miner...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B1/00B03B7/00B03B9/00
CPCY02P10/20
Inventor 王书礼王磊张晋禄葛家君孔令斌王建董远鹏
Owner CENT SOUTH UNIV
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