Process for the production of mesophase pitch

Details Process for the production of mesophase pitch Process for the production of mesophase pitch

C - Chemistry, Metallurgy

10

C

C10C 3/04 (2006.01) C10C 3/02 (2006.01) D01F 9/145 (2006.01)

Patent

CA 2084976

Case No. 8101 (8167) IMPROVED PROCESS FOR THE PRODUCTION OF MESOPHASE PITCH Abstract of the Disclosure An improved process for producing an anisotropic pitch product suitable for carbon fiber manufacture. A metal alkylaryl sulfonate is combined with a carbonaceous feedstock substantially free of mesophase pitch, and the combination is heated for a period of time at an elevated temperature while passing a non-oxidative sparging gas such as nitrogen through the feedstock. The process is carried out for a sufficient period of time to produce an anisotropic pitch having from 50 to 100 percent by volume mesophase which is suitable for producing good quality carbon fibers. In one aspect of the invention, an oxidatively reactive gas is used as the sparging gas.

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