Patent ID: 6077820
Filing Date: 2000-06-20
Classification: C11D

Abstract:
A process for producing a granular detergent or cleaning composition of bulk density in the region of 350-650 g/l comprising the steps of:a) mixing a particulate starting material and 5 to 75% by weight of the total amount of liquid binder in a low/high speed mixer/granulator, the liquid binder comprising:(i) a nonionic surfactant, and(ii) an anionic surfactant and/or an acid precursor of an anionic surfactant;and subjecting the resulting mixture to partial granulation, to produce a partially granulated mixture; andb) transferring the partially granulated mixture to a fluid bed or rotating bowl mixer/granulator, adding the remaining from 95 to 25% by weight of the total amount of liquid binder and mixing for a time sufficient to complete granulation to obtain the granular detergent or cleaning composition of desired bulk density.