Bauxite flotation desiliconation technology breakthrough

Recently, the invention patent “a new type of bauxite positive flotation inhibitor” applied for by the China Institute of Geological Survey Zhengzhou Institute of Comprehensive Utilization of Mineral Resources was authorized by the State Intellectual Property Office. The patent results will provide important support for the flotation and desilication technology of the dungling aluminous bauxite mine with huge reserves in China.

The invention promotes the effective separation of diaspore and silicon-containing minerals, and the ratio of aluminum-silica to bauxite of about 3 to 5, when the other process conditions are the same, after using the invention, and the conventional adjusting agent hexametaphosphoric acid Compared with sodium, the ratio of aluminum to silicon in concentrates can be increased by 1 to 2, and the recovery rate of alumina can be increased by 10% to 20%. The experimental results of a certain bauxite ore in Henan Province show that compared with the conventional modifier sodium hexametaphosphate, the new inhibitor can significantly enhance the selective inhibition of silicon-containing minerals. From 8.29 to 9.74, the alumina recovery rate increased from 53.98% to 74.96%.


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