Manufacture of detergent compositions

Details Manufacture of detergent compositions Manufacture of detergent compositions

1977-03-03

1978-07-25

Camby, John J.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

F26B 308

Patent

active

041020570

ABSTRACT:
Spray-dried fabric washing detergent powders based on nonionic surfactants are prepared by a process involving the step of injecting a phosphoric acid ester into the high pressure line carrying slurry to the spray-drying tower. The phosphoric acid ester is dissolved or dispersed in a nonionic surfactant such as a long chain alcohol ethoxylate and injected into the pressurized slurry either using a venturi effect or by being pressurized to a higher pressure.

REFERENCES:
patent: 2941947 (1960-06-01), Schauer

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