Parallel floatation process of desilionization for bauxite
Patent Information
- Authority / Receiving Office
- CN Β· China
- Current Assignee / Owner
- GUIZHOU BRANCH CHINA ALUMINUM IND
- Publication Date
- 2006-11-29
- Estimated Expiration
- Not applicable Β· inactive patent
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Abstract
Description
technical field
[0001] The invention relates to a parallel flotation method for desiliconization of bauxite, and relates to a method for producing alumina concentrate through flotation desiliconization of bauxite. technical background
[0002] More than 80% of my country's bauxite resources are medium-low-grade diaspore-type ores with an aluminum-silicon ratio of 4-8. The key to the success of processing this resource is to increase the aluminum-silicon ratio of bauxite through mineral processing methods, and then use The economical Bayer process produces alumina. At present, two technological prototypes of bauxite beneficiation and desiliconization have been formed - bauxite positive flotation desilication technology and bauxite reverse flotation desilication technology.
[0003] In the bauxite positive flotation desiliconization process technology, the flotation technical index is good, the aluminum-silicon ratio of the concentrate and the recovery rate are high; however, ...