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A kind of beneficiation and beneficiation process of tin sulfide ore coarse concentrate

A technology for rough concentrate and sulfide ore, applied in chemical instruments and methods, solid separation, wet separation, etc., can solve the problems of high labor intensity, many process links, complex processes, etc., to reduce production costs and classification. Process, the effect of reducing process input

Active Publication Date: 2018-08-24
YUNNAN TIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The soil separation method has the disadvantages of repeated circulation of selected minerals, discontinuous process, high labor intensity and low work efficiency.
The selection process of large-scale machine selection has problems such as huge ore feeding and product dehydration facilities, a large number of selected tailings are difficult to handle, and large investment
At the same time, these methods have many process steps, large loss of tin metal, high processing cost, and it is difficult to control or discard the selected tailings
The key technical link of a beneficiation process is to reduce the metal loss in the process of beneficiation, mainly to control the overflow and discharge of tailings in the process of beneficiation; Standard requirements, so the selection process needs to build a complete and huge tailings concentration and precipitation dehydration facility, the process is complicated, the investment is large, and the production and operation costs are high

Method used

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  • A kind of beneficiation and beneficiation process of tin sulfide ore coarse concentrate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A beneficiation process for coarse tin sulfide ore concentrate is used to select coarse tin concentrate produced by a 600-ton / day process. The coarse tin concentrate contains 5.871% tin and 10.78% sulfur. Proceed as follows:

[0023] 1) Grinding: all the tin coarse concentrate is mixed into the mill to dissociate the valuable metal minerals separately. At the same time, the grinding process can also make the residual flotation agent in the tin coarse concentrate grind and remove the drug; The concentration of ore is 55-60%, the grading fineness γ-200 mesh content is 70%, and the selected concentration is 30-35%;

[0024] 2) The grinding slurry obtained in step 1) is subjected to rough sulfide separation, two sweep separations, and one beneficiation operation to remove sulfide, and the rough sulfide separation operation adds 80g / t of butyl xanthate and 45g of terpineol oil. / t; add butyl xanthate 60g / t and pinitol oil 30g / t in the first sweep selection; add butyl xanthate 40...

example 2

[0028] The crude tin concentrate produced by the 160 tons / day process is selected. The crude tin concentrate contains 7.685% tin and 8.65% sulfur. Proceed as follows:

[0029] 1) Grinding: all the tin coarse concentrate is mixed into the mill to dissociate the valuable metal minerals separately. At the same time, the grinding process can also make the residual flotation agent in the tin coarse concentrate grind and remove the drug; The concentration of ore is 65%, the grading fineness γ-200 mesh content is 80%, and the selected concentration is 40-45%;

[0030] 2) The grinding slurry obtained in step 1) is subjected to primary sulfide roughing, two sweeping, and one beneficiation operation to remove sulfide, and sulfide roughing operation adds 120g / t butyl xanthate and 80g terpineol oil / t; Add butyl xanthate 40g / t and pinitol oil 40g / t for the first sweep; add 30g / t butyl xanthate and 20g / t pinitol oil for the second sweep, and the order of foaming is returned , Produces sulfide...

Embodiment 3

[0034] A beneficiation process for coarse tin sulfide ore concentrate. The coarse tin concentrate produced by a 200-ton / day process is selected. The crude tin concentrate contains 6.212% tin and 9.65% sulfur. Proceed as follows:

[0035] 1) Grinding: all the tin coarse concentrate is mixed into the mill to dissociate the valuable metal minerals separately, and the residual flotation agent in the tin coarse concentrate is ground and demedicated; the concentration of the slurry is 60%, Grinding classification fineness γ-200 mesh content is 90%, and the selected concentration is 40%;

[0036] 2) The grinding slurry obtained in step 1) is subjected to primary sulfide roughing, two sweeping, and one beneficiation operation to remove sulfide, and sulfide roughing operation adds 60g / t of butyl xanthate and 40g of terpineol oil / t; add butyl xanthate 80g / t and pinitol oil 20g / t for the first sweep; add butyl xanthate 20g / t and pinitol oil 10g / t for the second sweep, and the foam order ret...

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Abstract

The invention relates to an ore concentration technique for tin sulphide ore rough concentrate. The technique comprises the following steps of grinding of tin rough concentrate, sulfide flotation, cassiterite flotation, cassiterite foam flotation and tailing re-flotation. The ore concentration technique combines full ore grinding, sulfur flotation, tin flotation, table concentration and scavenging and is an ore separation method capable of sufficiently and effectively recovering valuable resources, such as valuable metal tin and sulphur (copper) elements, in tin rough concentrate and achieving separation and enrichment of the valuable resources under the condition that the mineral substance composition is not changed. By adoption of technique combining full ore grinding, sulfide flotation, sulfide detinning flotation, cassiterite flotation, cassiterite foam flotation, and table concentration and scavenging of tailings, concentration of the tin sulphide ore rough concentrate is perfected, and the recycling rate of tin metal is increased.

Description

Technical field [0001] The invention relates to the technical field of a method for beneficiating tin sulfide ore coarse concentrate. Background technique [0002] In the traditional non-ferrous metal beneficiation process, the tin-bearing sulfide ore is disturbed and affected by the high specific gravity sulfide minerals, not only the tin recovery rate is low, but also the grade of the crude tin concentrate produced is generally 6-13%, and contains a large amount of Sulfide cannot meet the raw material requirements of the smelter. It must be processed by the tin coarse concentrate selection process to produce qualified tin concentrate with a tin content of more than 40% and the impurity content can reach the standard. Sales. Therefore, the pros and cons of the tin coarse concentrate selection process directly affect the economic benefits of the concentrator. [0003] At present, the selection process of the coarse concentrate of tin sulfide ore is divided into: manual discontinu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03B9/00B03B7/00
CPCB03B7/00B03B9/00
Inventor 袁经中姚建伟李燕华陈红兵普永福赵荣陈明波石丽芬杨权志刘媛媛
Owner YUNNAN TIN
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