Process for cleaning metal surfaces of poly(arylene sulfide) dep

Details Process for cleaning metal surfaces of poly(arylene sulfide) dep Process for cleaning metal surfaces of poly(arylene sulfide) dep

1982-07-30

1984-03-06

Bashore, Jr., S. Leon

Cleaning and liquid contact with solids

Processes

For metallic, siliceous, or calcareous basework, including...

134 3, C23G 502

Patent

active

044352220

ABSTRACT:
A process for removing poly(arylene sulfide) deposits from metal surfaces is provided which comprises contacting said deposits with a halogenated cleaning agent followed by contacting the remaining deposits with a solution of a aluminum halide in an aromatic hydrocarbon. In addition, a process for the cleansing of metal parts having poly(arylene sulfide) deposits is provided which comprises contacting the parts in a manner as described immediately above, and thereafter contacting the metal parts with a lower alkyl alcohol, washing the metal part with H.sub.2 O, drying the metal part, followed by treatment of the dried part with concentrated HNO.sub.3.

REFERENCES:
patent: 3380951 (1968-04-01), Frey

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