Coal tar and hydrocarbon mixture pitch production using a...

Details Coal tar and hydrocarbon mixture pitch production using a... Coal tar and hydrocarbon mixture pitch production using a...

C - Chemistry, Metallurgy

10

C

C10C 3/06 (2006.01) B01D 1/00 (2006.01) B01D 3/00 (2006.01) C10C 1/16 (2006.01) C10C 3/00 (2006.01)

Patent

CA 2357237

Described are methods that utilize high efficiency evaporative distillation to make a high softening point coal tar pitch, a quinoline insoluble-free and ash-free coal tar pitch having a desired softening point, and a mesophase coal tar pitch. Each of the methods uses a feed coal tar pitch having a softening point in the range of 70°C to 160°C. The methods may be carried out using appropriate conventional distillation equipment, a wiped film evaporator, or a thin film evaporator.

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