Process for the manufacture of granular detergent compositions comprising nonionic surfactant

摘要

PCT No. PCT/US96/00527 Sec. 371 Date Sep. 24, 1997 Sec. 102(e) Date Sep. 24, 1997 PCT Filed Jan. 5, 1996 PCT Pub. No. WO96/23048 PCT Pub. Date Aug. 1, 1996A process for the manufacture of detergent compositions from a surfactant paste which is substantially in the solid phase at temperatures of 25 DEG C. and below comprises the steps of: (i) mixing the surfactant paste at a temperature above its softening point, the surfactant paste comprising at least 50% by weight of nonionic surfactant; (ii) forming the molten surfactant paste into drops on a cooling surface; (iii) forming solid pastilles by cooling the drops of molten surfactant paste; and (iv) removing solidified pastilles from the cooling surface.