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Collecting agent for copper converter slag flotation and use method thereof

A technology of copper converter slag and collector, which is applied in the field of efficient and comprehensive utilization of resources, can solve the problems of lower collection capacity than xanthate, large amount of collector, and low grade of copper concentrate, so as to reduce the dosage of chemicals and collect Strong ability, the effect of reducing the comprehensive dosage

Active Publication Date: 2013-03-13
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Butyl xanthate has a good collection ability for sulfide ore, but the selectivity is relatively poor
As a result, the grade of copper concentrate is low, and the amount of collector is generally large
Compared with butyl xanthate, when butylamine black is used as a collector for sulfide ore, its collection capacity is not as good as that of xanthate, but it has better selectivity, and the grade of copper concentrate obtained is higher, but the recovery rate is lower

Method used

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  • Collecting agent for copper converter slag flotation and use method thereof
  • Collecting agent for copper converter slag flotation and use method thereof
  • Collecting agent for copper converter slag flotation and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A comparison method is used to verify the effectiveness of the mixed collector provided by the invention for flotation of copper converter slag. The comparative example is a single butyl xanthate and butylamine black drug collector. The test process is one-stage grinding and one-stage roughing, and the dosage of the three collectors is 100g / t. The test results are shown in Table 1.

[0025] Table 1 Comparative test results / %

[0026]

[0027] As can be seen from the results, when a single butylxanthate was used as a collector, the rougher concentrate grade was lower and the recovery rate was higher; while a single butylamine black drug was used as a collector, the rougher concentrate grade was lower. high and low recovery. The mixed collector provided by the invention can effectively improve the concentrate grade without affecting the recovery rate.

Embodiment 2

[0029] Adopt a kind of collector that is used for copper converter slag flotation provided by the present invention, carry out flotation open-circuit test to Daye copper converter slag, the technological process that test adopts sees figure 1 . The test results are shown in Table 2.

[0030] Table 2 Copper converter slag open circuit test results / %

[0031]

[0032]

[0033] It can be seen from the results that the copper concentrate grade after the combination of concentrate 1 and concentrate 2 reaches 39.44%, the recovery rate is 87.72%, the recovery rate of concentrate plus medium ore is 95.19%, and the tailings grade is only 0.35%.

Embodiment 3

[0035] In order to eliminate the influence of difficulties in middling flotation separation, a small-scale closed-circuit test was carried out on Daye copper converter slag. The process flow used in the test is shown in figure 2 . The test results are shown in Table 3.

[0036] Table 3 Small-scale closed-circuit test results of copper converter slag / %

[0037]

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Abstract

The invention discloses a collecting agent for copper converter slag flotation and a use method thereof. The collecting agent is a mixture prepared from butyl xanthate, butyl amine black powder and xanthate type collecting agent Y89-4 in a mass ratio of (1:1:1)-(3:2:2). When the collecting agent is used, 500-1000g / t of sodium carbonate is added in the first section of copper converter slag grinding process; after the grinding is finished, 300-500g / t of lime is added; the ore pulp pH is adjusted to 10-11; 75-125g / t of the mixed collecting agent and 30-40g / t of foaming agent terpenic oil are further added and stirred and subjected to rough selection; after the rough selection, flotation tailings are subjected to further grinding and screening; screened products are subjected to three times of scavenging; 15-30g / t of mixed collecting agent and 10-20g / t of foaming agent terpenic oil are added for each scavenging. By adopting the technical scheme provided by the invention to process copper converter slag of which cooper content is 5.54 percent, copper concentrate of which the copper grade is 36.26 percent and the recovery rate is 94.82 percent can be obtained through a small-sized closed circuit test, and the copper grade of the floatation tailing is 0.35 percent, so that the recovery index is effectively improved; and meanwhile compared with an ordinary agent, the combined agent has the advantages of low dosage, good index, less pollution and the like.

Description

technical field [0001] The invention relates to a reagent for mineral flotation, in particular to a collector for the flotation separation of copper converter slag containing copper sulfide minerals and a use method thereof, belonging to the field of efficient comprehensive utilization of resources. Background technique [0002] Copper slag is the product of copper high-temperature pyrometallurgy process. Converter slag is the slag produced by matte through converter blowing. It usually contains high copper, but it is not enough to be directly smelted as copper concentrate. Due to the disadvantages of pyroprocessing, at present, beneficiation method is commonly used to treat copper converter slag at home and abroad. [0003] Butyl xanthate is the most commonly used collector for processing copper converter slag by beneficiation. Butyl xanthate has a good collection ability for sulfide ore, but the selectivity is relatively poor. As a result, the grade of copper concentrate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/014B03D101/02
Inventor 黄红军胡岳华孙伟江锋曹学锋
Owner CENT SOUTH UNIV
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