| 摘要 |
The subject of the invention is a process for the preparation of a granular detergent component or composition having a bulk density from at least approximately 700 g/l up to a density of approximately 110 g/l, comprising: a. producing a raw material in the form of a particulate detergent or component of low density comprising an organic surface-active agent, a water-soluble inorganic salt and, optionally, other materials, the said raw material having a bulk density not greater than approximately 600 g/l; b. subjecting the said particulate raw material of low density to an agglomeration with strong shearing so as to subject the said particulate raw material to high shearing (shear) forces in intimate contact with a liquid consisting essentially of water in an amount and for a sufficient duration (1) to fluidise, moisten with the said water and mechanically grind the said raw material in order to confer a smaller particle size on it and (2) partially to agglomerate the said moistened and ground raw material; c. subjecting the said partially agglomerated raw material to an agglomeration by rotation for a sufficient duration to produce, after drying, a new agglomerated granular detergent component or composition having a bulk density of at least approximately 700 g/l; and d. drying the said new agglomerated detergent component or composition.
|
