Patent ID: 6207719
Filing Date: 2001-03-27
Classification: B01F,Y10S

Abstract:
A method of preparing an alkaline size, alkenyl succinic anhydride (""ASA"") in an emulsion, said method comprising the steps of:A. supplying a liquid including at least ASA;B. feeding a portion of said liquid of step (A) to a first input of a manifold;C. feeding a first stream of an emulsifier into a second input to said manifold, said liquid combining with said emulsifier within said manifold to form a first stream comprising a mixture of at least ASA and said emulsifier;D. feeding the first stream of step (C) through a mixing means which imparts enough energy to said emulsion to shear and break down said ASA into particles and divide an outflow from said mixing means (i) through a recycling loop to at least a third input of said manifold and (ii) to an output stream of said system, said output stream having a ratio of ASA to emulsifier set by the relative volumes of said streams of Step (B) and Step (C); andE. feeding said recycled emulsion of step (D) into said mixing means of step (D).