The reverse flotation process of spodumene is to inhibit the spodumene in a lime-adjusted alkaline medium using dextrin, starch, etc., and use a cationic collector (such as the acetate alcohol of dextrin) to float the silicate. A gangue mineral, the product in the tank is a spodumene concentrate, and if necessary, an HF resinate foaming agent is used to further extract iron minerals.
(1) The hand selection method is selected according to the appearance characteristics (color, gloss, and crystal form).
(2) Flotation method
1 acid method (sub-mixing method and priority method) The acid mixing flotation process uses amine acetate to float out mica , then hydrofluoric acid activates beryl and feldspar , and the mixed concentrate is washed (added chlorine) Calcium acid) and drug removal, flotation of beryl with petroleum sulfonate. The acid process priority process uses sulfuric acid, aluminum sulfate and the like to adjust the slurry, and the cationic collector is used to remove the mica, then the ore washing, concentration, and hydrofluoric acid treatment, and the fatty acid (such as oleic acid) and neutral oil are used in the soda medium. Class of medicine flotation beryl.
2 alkaline alkali flotation process is to pre-treat the ore with alkali (sodium hydroxide-sodium sulfide-sodium carbonate or sodium hydroxide-sodium carbonate) before grinding or flotation, and wash and de-sludge, or Without this process, a (hot) fatty acid collector, emulsifier and foaming agent flotation beryl are added.
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