Graphite ore flotation (Philippines)

Graphite ore can be divided into crystalline graphite, flake graphite and graphite ore with a variety of gangue. The graphite ore beneficiation process is mainly for the graphite ore with different crystal forms, such as graphite ore, pyrite or mica. It adopts multi-stage grinding multi-stage flotation and re-election flotation combined with two beneficiation processes.

Because crystalline graphite has natural floatability, flake graphite has good floatability. Therefore, for these two kinds of graphite ore, hanfa usually adopts multi-stage grinding multi-stage flotation method for beneficiation. The reason why the multi-grinding and multi-floating method should be used is to protect the graphite scales, ensure that the scales are not damaged, and ensure that the quality of the concentrate meets the requirements. In the multi-stage flotation process, the application of flotation reagents: collectors should use diesel, heavy oil, kerosene, sulfuric acid, phenols, etc.; foaming agents should use No. 2 oil, No. 4 oil, butyl ether oil and Ether alcohol and the like.

The beneficiation equipment used in multi-stage grinding multi-stage flotation method includes: crushing mostly using jaw crusher for coarse crushing, hammer crusher and cone crusher for medium crushing; grinding ball mill and lattice ball mill are usually used in grinding stage; The flotation equipment commonly used in the selection stage includes JJF flotation machine, XCF flotation machine and XJB rod flotation machine; in the dehydration stage, we will use hydrocyclones and belt filters.