| 摘要 |
1. A process for preparing a granular detergent product in which a particulate material comprising a hydratable salt is granulated with a liquid binder, characterised in that the resulting granules are treated in a low shear mixer with from 0.5 to 20 wt% of water, based on the total amount of untreated granules, this water containing less than 5wt% of dissolved or dispersed material; in such a manner that little or no further agglomeration takes place. 2. A process according to claim 1, in which the granules are treated with from 1 to 15 wt% of water. 3. A process according to claim 1 or claim 2, in which the water is sprayed onto granules which are under agitation. 4. A process according to any preceding claim, in which the low shear mixer is a fluidised bed. 5. A process according to any preceding claim, in which the granules are dried and/or cooled. 6. A process according to claim 5, in which the granules are treated with water either prior to or during drying and/or cooling in a fluidised bed. 7. A process according to any preceding claim, in which the hydratable salt is a detergency builder. 8. A process according to any preceding claim, in which the hydratable salt is a phosphate, carbonate or citrate. 9. A process according to any preceding claim, in which the granulation is carried out in a single mixer. 10. A process according to claim 9, in which the single mixer is a gas fluidisation granulator. 11. A process according to any one of claims 1 to 8, in which the granulation is carried out in two or more successive mixers. 12. A process according to claim 11, in which the final mixer is a gas fluidisation granulator. 13. A granular detergent product obtained according to a process according to any preceding claim.
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