Patent ID: 6455488
Filing Date: 2002-09-24
Classification: A61K,A61Q,B01J,C07C,C11D

Abstract:
A process for making substantially odorless granules of alkyl sulfates corresponding to formula (I):Râ€”Oâ€”SO3Xâ€ƒâ€ƒ(I) wherein R is an alkyl group containing from 6 to 18 carbon atoms, and X is selected from the group consisting of an alkali metal, an alkaline earth metal, ammonium, an alkyl ammonium, and alkanolammonium, and a glucammonium ion, the process comprising: (a) providing a water-containing paste of alkyl sulfates having a content of unsulfonated components of greater than 0.3% by weight; and (b) simultaneously granulating and drying, in a fluidized bed, the water-containing paste of alkyl sulfates to form substantially odorless granules of alkyl sulfates, over a period of time of from about 1 to 5 hours, and wherein the substantially odorless granules thus formed have less than 0.2% by weight, based on the weight of active substance, of unsulfonated components present therein.