Agglomeration of high active pastes to form surfactant granules useful in detergent compositions

摘要

PCT No. PCT/US92/02880 Sec. 371 Date Oct. 12, 1993 Sec. 102(e) Date Oct. 12, 1993 PCT Filed Apr. 9, 1992 PCT Pub. No. WO92/18603 PCT Pub. Date Oct. 29, 1992.A process for making a free-flowing granular detergent contemplates mixing an aqueous surfactant paste that has a detergency activity of at least 40% with a dry detergency powder to form a mix, rapidly forming a uniform mixture at a temperature of from about 20 DEG C. to about 80 DEG C., and then granulating the mixture into discrete detergent granules by a high-speed mixing. Surfactant pastes used in the present invention contain at least one anionic surfactant and the mixing and granulating steps of the process occur either simultaneously or immediately sequentially.