公开(公告)号：US20230066944A1

公开(公告)日：2023-03-02

申请号：US17791090

申请日：2021-01-07

Applicant: BASF SE

Inventor： Susan Carvalho ,  Alexej Michailovski ,  Rostislav Kamkin ,  Bettina Sobotka

IPC: B03D1/02 ,  B03D1/008 ,  B03D1/004

Abstract: The invention relates to a method for manufacturing a concentrate enriched in a phosphate mineral content from an ore, which contains a phosphate mineral and a non-phosphate mineral, by a flotation, which method comprises the step of adding a surfactant system comprising (A) a fatty acid, (B) a blend of ethoxylated and non-ethoxylated alcohols, which is obtainable by blending (i) a reaction product of a first C12-C16 aliphatic alcohol having an average degree of branching of 1.9 to 3.5 and 10 to 20 equivalents of ethylene oxide, and (ii) a second C12-C16 aliphatic alcohol having an average degree of branching of 1.9 to 3.5, wherein the amount of (i) is 80 to 95 wt. % and the amount of (ii) is 5 to 20 wt. % and wt. % is based on the overall weight of the mixture of ethoxylated and non-ethoxylated alcohols, to a prepared aqueous pulp of the ore and optionally one or more flotation auxiliaries to obtain an aqueous mixture. Furthermore, a use of the surfactant system as flotation collector is disclosed.