Chemical cleaning method of the interior of polymerization react

Details Chemical cleaning method of the interior of polymerization react Chemical cleaning method of the interior of polymerization react

1988-10-26

1990-02-27

Pal, Asok

Cleaning and liquid contact with solids

Processes

Miscellaneous

134 2, 134 7, 134 221, 134 2216, 134 2219, 264 39, 252DIG8, 252174, 525 74, 528484, B08B 308

Patent

active

049043099

ABSTRACT:
A chemical cleaning method for removing scales and other substances deposited on the interior of a polymerization reactor used in emulsion polymerization or suspension polymerization. This method comprises chemically cleaning the interior using an aqueous solution or dispersion of an alkali agent and a surfactant. According to this method of cleaning, scales deposited on the interior of a polymerization reactor, in particular, scales deposited during polymerization on the inside surface, an agitator and baffle-plates of the reactor are completely removed.

REFERENCES:
patent: 3005734 (1961-10-01), Ells
patent: 3653964 (1972-04-01), Yamamoto et al.
patent: 3740267 (1973-06-01), Haylock
patent: 3865628 (1975-02-01), Callahan et al.
patent: 4468257 (1984-08-01), Kaneko et al.

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