Method for treating sulfureous bauxite

A technology of bauxite and ore pulp, which is applied in the direction of chemical instruments and methods, wet separation, solid separation, etc., can solve the problems of difficult dispersion of ore pulp, large amount of flotation reagents, and no flotation desilication operation, etc. Flotation desiliconization index, less dosage of flotation reagents, beneficial to the effect of backwater utilization
CN102806137BInactive Publication Date: 2014-07-30INST OF MULTIPURPOSE UTILIZATION OF MINERAL RESOURCES CHINESE ACAD OF GEOLOGICAL SCI
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
INST OF MULTIPURPOSE UTILIZATION OF MINERAL RESOURCES CHINESE ACAD OF GEOLOGICAL SCI
Publication Date
2014-07-30
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a method for treating sulfureous bauxite and relates to the technical field of sulfureous bauxite treatment process. The method includes the steps of grinding, desulfuration by reverse flotation and desilication by obverse flotation, and the step of removing H+, Fe3+ and Fe2+ in ore pulp is added before grinding, between grinding and desulfuration by reverse flotation, between desulfuration by reverse flotation and desilication by obverse flotation, or after desilication by obverse flotation. The ore pulp during flotation desilication can be dispersed sufficiently, index of flotation desilication is increased, and the problem of difficulty in alkaline flocculation of alkaline products of concentrates, tailings or red mud in bauxite beneficiation is solved.
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Description

technical field

[0001] The invention relates to the technical field of sulfur-containing bauxite processing technology. Background technique

[0002] The total amount of sulfur-containing bauxite resources in my country exceeds 800 million tons, most of which are medium and low-grade bauxite, mainly concentrated in Guizhou, Chongqing and Henan. With the depletion of bauxite resources in our country, the development and utilization of sulfur-containing bauxite has become increasingly urgent. At present, the sulfur-containing bauxite with high aluminum-silicon ratio can be used for alumina production through desulfurization, while the bauxite with medium and low aluminum-silicon ratio can not be used for the economical Bayer process to produce alumina only by desulfurization, and must be carried out. Desiliconization improves the ratio of aluminum to silicon before it can be used in the production of alumina by the Bayer process.

[0003] Sulfur-containing bauxite benefi...

Claims

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