Dewatering of mineral suspensions

摘要

An improved process for concentrating and dewatering of mineral suspensions by filtration which comprises adding to the suspension prior to the filtration as filter aid a composition containing a sulfosuccinate of the formula I <IMAGE> wherein R1 and R2 each are an alkyl radical having about 6 to 12 carbon atoms and Me is an alkali metal, and an aliphatic amine having at least 5 carbon atoms.