Process for producing mesophase pitch

Details Process for producing mesophase pitch Process for producing mesophase pitch

C - Chemistry, Metallurgy

10

C

196/36

C10C 3/00 (2006.01) D01F 9/145 (2006.01)

Patent

CA 1164384

ABSTRACT OF THE DISCLOSURE A substantially uniform mesophase pitch is prepared by treating a mesophase forming pitch material at elevated temperatures above about 380°C to produce a mixture of mesophase and non-mesophase pitch containing about 20% to about 80% mesophase. The mixture is then maintained at a temperature below about 400°C or a time sufficient to allow the mesophase to coalesce and settle as a lower separable layer. A mesophase pitch so produced may contain from 90 to 100% mesophase with a softening point of less than 320°C.

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