Cleaning and liquid contact with solids – Processes – Hollow work – internal surface treatment
Patent
1992-05-01
1993-07-06
Lieberman, Paul
Cleaning and liquid contact with solids
Processes
Hollow work, internal surface treatment
134 2211, 134 2219, 134 39, 134 40, 134 42, 252162, 252170, 25217421, 25217423, 252542, B08B 902, C11P 750
Patent
active
052250024
ABSTRACT:
A solvent system for cleaning coke oven gas lines comprises N-methyl-2-pyrrolidone, aromatic naphtha, and surfactants.
REFERENCES:
patent: 3156584 (1964-11-01), Yurdin
patent: 4120810 (1978-10-01), Palmer
patent: 4509989 (1985-04-01), Sumansky
patent: 4666626 (1987-05-01), Francisco
patent: 4732695 (1988-03-01), Francisco
patent: 4780235 (1988-10-01), Jackson
Nicholson Gerald M.
Stafford Michael L.
Baker Hughes Incorporated
Lieberman Paul
Swope Bradley A.
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