Chemical pitch

Details Chemical pitch Chemical pitch

C - Chemistry, Metallurgy

10

C

196/43

C10C 3/00 (2006.01) C25C 3/12 (2006.01)

Patent

CA 1082628

ABSTRACT Chemical pitch is made by distilling steam cracker tar to obtain a pitch having an initial point of between 360°C and 400°C at atmospheric pressure, heat soaking the pitch at 370°C to 420°C at a pressure in the range of from sub-atmospheric to 4 atmospheres absolute, stripping the soaked pitch to obtain a product having a minimum softening point (R and B) of 75°C. The pitch may be used as a binder for carbon electrodes by mixing it with coke.

241068

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