| abstract |
The instant invention relates to a composition in form of a stable aqueous emulsion comprisingn a) 1-50 wt.-% of at least one water insoluble thionocarbamate collector selected from the group consisting of dialkyl thionocarbamates, alkyl alkoxycarbonyl thionocarbamates and alkyl allyl thionocarbamates, b) 1-50 wt.-% of one or a mixture of surface active agents of the general formula nn n n n n n n n n n n n wherein n R 1 is a saturated or unsaturated, branched or linear C 3 to C 30 aliphatic or aromatic hydrocarbon group, n R 2 and R 3 are independently from each other hydrogen or a C 1 to C 4 alkyl group, n R 4 is hydrogen or —CH 2 —COOX where X is hydrogen or sodium salt or potassium salt or ammonium salt, and n n and m are independently from each other 0 to 50, n n n c) 0.1-20 wt.-% of a mixture of at least one alcohol and at least one ether and/or ester, n e) 1-90 wt.-% of water. |