PROCESS FOR CLARIFYING AQUEOUS SUSPENSIONS OF PARTICULATE SOLIDS

摘要

24,729ABSTRACT OF THE DISCLOSUREThe clarification of specified types of aqueous sus-pensions of finely divided solids by the use of polymeric floc-culating agents is markedly enhanced if, in conjunction withspecified types of polymeric flocculating agents, the suspen-sions are treated with an aqueous acid colloidal solution of amelamine/formaldehyde resin containing from 2 to about 12 molesof formaldehyde per mole of melamine.