Production of detergent granulates
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United States of America Patent
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Aug 6, 2002
Issued Date -
N/A
app pub date -
Sep 11, 2000
filing date -
Jun 16, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A granular detergent product is made by spraying a liquid binder to contact a particulate solid starting material in a low shear granulator such as a fluidized bed apparatus. The d.sub.3,2 average droplet diameter of the liquid binder is not greater than ten times the d.sub.3,2 average particle diameter of that fraction of the solid starting material which has a d.sub.3,2 particle diameter of from 20 .mu.m to 200 .mu.m provided that if more than 90% by weight of the solid starting material has a d.sub.3,2 average particle diameter less than 20 .mu.m then the d.sub.3,2 average particle diameter of the total solid starting materials shall be taken to be 20 .mu.m. If more than 90% by weight of the solid starting material has a d.sub.3,2 average particle diameter greater than 200 .mu.m than the d.sub.3,2 average particle diameter of the total starting solid material shall be taken to be 200 .mu.m.
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