Process for producing pitch for carbon materials

Details Process for producing pitch for carbon materials Process for producing pitch for carbon materials

C - Chemistry, Metallurgy

10

C

402/371

C10C 3/00 (2006.01) C08G 61/10 (2006.01) D01F 9/14 (2006.01) D01F 9/145 (2006.01)

Patent

CA 1326933

- 37 - ABSTRACT OF THE DISCLOSURE: Disclosed herein is a process for producing a substantially quinoline-soluble and optically anisotropic pitch for carbon materials, which process comprises the steps of (1) polymerizing naphthalene by heating at a temperature of not higher than 330°C for 0.5 to 100 hours in the presence of a Lewis acid catalyst, (2) after removing said catalyst from the reaction mixture, subjecting said reaction mixture to thermal treatment at a temperature of 390 to 450°C for 1 to 5 hours in a closed system under a pressure of not higher than 5 kg f/cm2G, thereby carrying out aromatization of the polymerizate of naphthalene, and (3) heating the thus treated material at a temperature of 350 to 380°C for 3 to 10 hours under a reduced pressure while flowing an inert gas, thereby removing the volatile components from said material, and the pitch produced by the process.

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