Method of employing process oils from converted wastes in synthe

Details Method of employing process oils from converted wastes in synthe Method of employing process oils from converted wastes in synthe

1981-03-24

1983-08-16

Marquis, Melvyn I.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524571, 524575, 208184, C08K 501

Patent

active

043992528

ABSTRACT:
Process oil is made by conversion from "waste" materials, particularly used oils, and most particularly used crankcase oils, by flash evaporation at about 250.degree. F. and filtration for removal of solids therefrom, to produce a product substantially free of water and low boiling point components and of contaminant solids, which has a flash point above 310.degree. F., or is blended with other products from the same process to produce a final product having a flash point above 310.degree. F., and an aromatic content above 10%, preferably above 20%, by weight. The product may be used generally in a wide variety of process oil applications but is most particularly adapted for use as a rubber process oil and such use is also part of the present invention.

REFERENCES:
patent: 3449283 (1969-06-01), Geerards et al.
patent: 3541032 (1970-11-01), Pampus et al.
patent: 3706653 (1972-12-01), Mills et al.
patent: 4001167 (1977-01-01), Tungseth et al.
patent: 4017446 (1977-04-01), Rion

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