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专利名称：FROTH FLOTATION
发明人：JACOBUS CORNELIUS WELGEMOED,HAIMI
NATHAN SINGER,PHILLIP MARTIN VIVIERS
申请号：AU43086申请日：19861024公开号：AU575260B2公开日：19880721
摘要：A process for recovering phosphate values from a finely divided ore containingthe phosphate values and gangue such as an ore containing apatite, calcite and dolomite,by froth flotation includes the steps of suspending the finely divided ore containing thephosphate values and the gangue in a liquid at a pH of greater than 7; adding to thesuspension a froth flotation collector comprising a tall oil fatty acid and an emulsifier forthe tall oil fatty acid selected from alkylphenylalkoxylates having the formula: wherein: nis an integer from 8-10 inclusive; m is an integer from 10-20 inclusive; and alkyl is -CH2-CH2- or the froth flotation collector comprising 80-99% by weight of the collector ofthe tall oil fatty acid and 20 to 1% by weight of the collector of the emulsifier;
introducing a gas such as air into the liquid to produce a froth containing the phosphatevalues and leaving suspended the other solid gangue; and recovering the phosphatevalues.
申请人：SENTRACHEM LIMITED.
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