Method for producing solid carbon material having high bulk...

Details Method for producing solid carbon material having high bulk... Method for producing solid carbon material having high bulk...

C - Chemistry, Metallurgy

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C01B 31/02 (2006.01) C04B 35/528 (2006.01) C10C 1/19 (2006.01) C10C 3/00 (2006.01)

Patent

CA 1064658

ABSTRACT OF THE DISCLOSURE Solid carbon article having high bulk density of at least 1.90 g/cm3 and high flexural strength of at least 900 kg/cm2 can be produced by sequential steps of preparing, by means of poly- condensation of a raw pitch material, a specific precursory car- bon material which has an atomic ratio H/C of 0,4 to 0.6, a quino- line soluble of 2 to 15 weight %, a fixed carbon content of 80 to 93 weight % and a degree of heat shrinkage of at least 2 %; pul- verizing the precursory carbon material into a fine powder having a particle size of up to 10 microns; shaping the pulverized mat- erial into a desired article at a room temperature; and carboniz- ing and further graphitizing said article in an inert atmosphere.

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