Bauxite column-type floatation method

A bauxite and column-type technology, which is applied in the field of beneficiation and desiliconization of low-grade diaspore bauxite, can solve the problems of difficult control, small processing capacity, and poor beneficiation index, and achieve reasonable process and strengthened Recycling and ensuring the effect of tailings grade
CN101703965BActive Publication Date: 2013-05-08中铝中州铝业有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
中铝中州铝业有限公司
Publication Date
2013-05-08

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Abstract

The invention provides a bauxite column-type floatation method, and relates to bauxite ore-dressing and desilication, in particular to a low-grade diasporite bauxite ore-dressing and desilication method. The method is characterized in that a floatation process comprises the following steps: (1) adding flotation reagent for pulp regulation to bauxite raw ore pulp and adopting a flotation column for rough flotation; (2) adding the flotation reagent for pulp regulation again to flotation concentrate pulp overflowing from the flotation column for rough flotation, adopting the flotation column forconcentration and obtaining concentrate; (3) adding the flotation reagent for pulp regulation to tailings flowing at the bottom of the flotation column for rough flotation to perform column scavenging; and (4) returning the tailings obtained by adopting the flotation column for concentration in the step (2) and scavenging concentrate obtained in the step (3) to the process of adding the flotationreagent for pulp regulation to the bauxite raw ore pulp in the step (1). The method has the advantages of reasonable process, good industrial implementation effects, good flotation indexes and low reagent consumption.
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Description

technical field

[0001] A bauxite column type flotation method relates to a bauxite ore dressing and desiliconization method, especially a method for ore dressing and desiliconization of low-grade diaspore bauxite. Background technique

[0002] Most of the bauxite in my country belongs to the diaspore type bauxite, which has the characteristics of high aluminum, high silicon, low iron, and low aluminum-silicon ratio. The gangue minerals are mainly kaolinite, illite, pyrophyllite, etc. Aluminosilicate clay minerals. The mosaic distribution of main minerals in the ore is fine, and the mosaic relationship is complex. The crushing and grinding process of gangue minerals is easy to muddy and difficult to wash.

[0003] After years of hard work, Chinese scientific and technological workers have developed a number of bauxite beneficiation processes. At present, large-scale industrial production of bauxite flotation has been realized. Industrial production usually uses flotation mac...

Claims

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