Process for treating coal tar or coal tar pitch

Details Process for treating coal tar or coal tar pitch Process for treating coal tar or coal tar pitch

1989-09-05

1991-01-22

Myers, Helane E.

Mineral oils: processes and products

Asphalts, tars, pitches and resins; making, treating and...

208 22, 208 44, 208 42, C10C 120, C10C 302

Patent

active

049868950

ABSTRACT:
Pitch substantially free from primary and secondary QI components and solids comprising secondary QI components are prepared by centrifuging coal tar or coal tar pitch at a high temperature, heat-treating the separated supernatant liquid and centrifuging again the liquid at a high temperature.

REFERENCES:
patent: 2774716 (1956-12-01), Kulik
patent: 4036603 (1977-07-01), Bernet et al.
patent: 4267061 (1981-05-01), Simo et al.
patent: 4277325 (1981-07-01), Greenwood
patent: 4283269 (1981-08-01), Greenwood
patent: 4436615 (1984-03-01), Boodman et al.
patent: 4482452 (1984-11-01), Shigeta et al.
patent: 4533461 (1985-08-01), Izumi et al.
patent: 4589974 (1986-05-01), Izami

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