Liquid purification or separation – Processes – Separating
Patent
1986-06-25
1988-05-03
Spear, Frank
Liquid purification or separation
Processes
Separating
210778, 210806, B01D 3702
Patent
active
047418400
ABSTRACT:
A process is disclosed for treating sludge to remove the liquid hydrocarbons from the insoluble particles in the sludge to provide treated particles which are environmentally safe. The process involves mixing the sludge with a hydrocarbon diluent, separating the particles from the diluent-sludge mixture, then mixing the separated particles and remaining diluent with water and distilling off the remaining diluent to obtain the treated particles.
REFERENCES:
patent: 3692668 (1972-09-01), McCoy et al.
patent: 3696021 (1972-10-01), Cole et al.
patent: 4260484 (1981-04-01), Greig et al.
patent: 4264453 (1981-04-01), Mraovich
Atherton George A.
Dickakian Ghazi A.
Grant, Jr. Edward D.
Exxon Research & Engineering Co.
Mahon J. J.
Markowitz S. H.
Spear Frank
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