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Combined collector for direct flotation of diasporic bauxite and using method thereof

A combined collector and bauxite technology, applied in flotation, solid separation, etc., can solve the problems of weak collection capacity, low dispersion and dissolution performance, large foam volume, etc., and achieve the goal of improving selectivity and promoting dissolution ability Effect

Inactive Publication Date: 2014-01-01
ZHENGZHOU MINERALS COMPOSITIVE UTILIZATION RES INST CHINESE GEOLOGICAL ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the bauxite positive flotation process, the role of collectors is very important. At present, conventional collectors such as sodium oleate have disadvantages such as poor selectivity, low dispersion and solubility, and weak collection capacity. In industrial production, the foam produced by oleic acid is not easy to defoam, and the amount of foam is large, which brings a lot of inconvenience to production

Method used

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  • Combined collector for direct flotation of diasporic bauxite and using method thereof
  • Combined collector for direct flotation of diasporic bauxite and using method thereof
  • Combined collector for direct flotation of diasporic bauxite and using method thereof

Examples

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Effect test

example 1

[0013] A combined collector for the positive flotation of diaspore type bauxite is characterized in that: the main components are saponification products of vegetable oleic acid, naphthenic acid and lauryl ether phosphate; vegetable oleic acid, The dosage ratio of naphthenic acid and the saponification product of lauryl ether phosphate is 1:1:0.5.

[0014] For the bauxite in the Xiaoguan mining area in Henan, Al in the raw ore 2 o 3 The content is 59.08%, SiO 2 The content is 11.58%, and the raw ore aluminum-silicon ratio A / S is 5.10. The positive flotation process system is: the particle size of the bauxite grinding product is -0.074mm, accounting for 80-90%, the pH value of the flotation system is 10, and the combined collector of the present invention is used as the collector. The dosage of the inhibitor sodium hexametaphosphate is 70g / t. The test results are shown in Table 1.

[0015] Table 1 Example 1 test results

[0016]

[0017] The test results show that the c...

example 2

[0019] A combined collector for the positive flotation of diaspore type bauxite is characterized in that: the main components are saponification products of vegetable oleic acid, naphthenic acid and lauryl ether phosphate; vegetable oleic acid, The dosage ratio of naphthenic acid and the saponification product of lauryl ether phosphate is 1:1:0.5.

[0020] For the bauxite of a bauxite dressing plant in Henan, Al in the raw ore 2 o 3 The content is 56.34%, SiO 2 The content is 18.91%, and the aluminum-silicon ratio of raw ore is 2.98. The positive flotation process system is: the particle size of the bauxite grinding product is -0.074mm, accounting for 80-90%, the pH value of the flotation system is 9, and the combined collector of the present invention is used as the collector. is 800g / t, and the amount of inhibitor water glass is 60g / t. The test results are shown in Table 2.

[0021] Table 2 Example 2 test results

[0022]

[0023] The test results show that the combi...

example 3

[0025] A combined collector for the positive flotation of diaspore type bauxite is characterized in that: the main components are saponification products of vegetable oleic acid, naphthenic acid and lauryl ether phosphate; vegetable oleic acid, The dosage ratio of naphthenic acid and the saponification product of lauryl ether phosphate is 1:1:0.5.

[0026] For the bauxite of a bauxite dressing plant in Henan, Al in the raw ore 2 o 3 The content is 56.34%, SiO 2 The content is 18.91%, and the aluminum-silicon ratio of raw ore is 2.98. The positive flotation process system is: the particle size of the bauxite grinding product is -0.074mm, accounting for 80-90%, the pH value of the flotation system is 11, and the combined collector of the present invention is used as the collector. is 1200g / t, and the dosage of inhibitor water glass is 80g / t. The test results are shown in Table 3.

[0027] Table 3 Example 3 test results

[0028]

[0029] The test results show that the com...

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Abstract

The invention discloses a combined collector for direct flotation of diasporic bauxite and a using method thereof. The combined collector mainly contains vegetable oil acid, naphthenic acid and a saponified product of dodecyl ether phosphate. The proportion of the vegetable oil acid to the naphthenic acid to the saponified product of the dodecyl ether phosphate is 1:1:0.5. The using method is that a bauxite grinding product with the alumina-silica ratio 3-5 and the particle size -0.074mm accounts for 80-90% when the direct flotation of the bauxite is performed, a potential of hydrogen (pH) value of a flotation system is controlled to be 9-11, the using amount of sodium silicate or sodium hexametaphosphate serving as an inhibitor is 60-80g / t, and the using amount of the combined collector serving as a collector is 800-1200g / t. The selectivity and collecting capacity on the diasporic bauxite during the direct flotation of the bauxite can be enhanced, the dispersing and dissolving capacity of the combined collector in ore pulp is enhanced, and the bauxite direct flotation effect is improved.

Description

technical field [0001] The invention relates to the field of mineral processing engineering, in particular to a combined collector used for the positive flotation of diaspore type bauxite and its application method. Background technique [0002] Most of the bauxite resources in my country belong to diaspore type bauxite, among which the proportion of high-quality bauxite with aluminum-silicon ratio greater than 7 is very small, and more than 80% of the diaspore-type bauxite with aluminum-silicon ratio is less than 7, and the bauxite with an aluminum-silicon ratio of 3-5 accounts for the vast majority. These resources must be desiliconized, enriched and upgraded through beneficiation methods, so that the aluminum-silicon ratio is greater than 7, so as to meet the minimum requirements of the currently popular lime-Bayer process in China. Flotation is the main method of beneficiation and desiliconization, and positive flotation is undoubtedly the most successful bauxite flotati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/014B03D101/02B03D103/04
Inventor 刘长淼冯安生吕子虎吴东印卫敏赵登魁赵恒勤郭珍旭
Owner ZHENGZHOU MINERALS COMPOSITIVE UTILIZATION RES INST CHINESE GEOLOGICAL ACAD
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