Liquid purification or separation – Processes – Separating
Patent
1981-12-23
1987-08-11
Spear, Frank
Liquid purification or separation
Processes
Separating
208 13, 210772, 210806, B01D 1102
Patent
active
046860487
ABSTRACT:
A process is disclosed for treating cat cracker bottoms sludge to remove the cat cracker bottoms hydrocarbons from the catalyst fines in the sludge to provide treated fines which are environmentally safe for landfill. The process involves mixing the sludge with a hydrocarbon diluent, separating the fines from the diluent-sludge mixture, then mixing the separated fines and remaining diluent with water and distilling off the remaining diluent to obtain the treated fines.
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patent: 3692668 (1972-09-01), McCoy et al.
patent: 3696021 (1972-10-01), Cole et al.
patent: 3835021 (1974-09-01), Lorenz et al.
patent: 4123357 (1978-10-01), Clements et al.
patent: 4206001 (1980-06-01), Knowlton
patent: 4260489 (1981-04-01), Greig et al.
Atherton George A.
Dickakian Ghazi B.
Grant, Jr. Edward D.
Bittman M. D.
Exxon Research & Engineering Co.
Spear Frank
Wheelock E. T.
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