Method for producing elastic graphite structures

Details Method for producing elastic graphite structures Method for producing elastic graphite structures

1989-10-27

1991-10-15

Kunemund, Robert

Chemistry of inorganic compounds

Carbon or compound thereof

Elemental carbon

423445, 423449, 208 39, 208 44, C01B 3104

Patent

active

050572970

ABSTRACT:
A method for producing graphite structures which are of light weight and excel in elasticity from a carbonaceous material comprises in succession the steps of: (a) treating said carbonaceous material with nitric acid or a nitric-sulfuric acid mixture, (b) bringing the acid-treating carbonaceous material into contact with a basic aqueous solution to make it soluble, (c) adding an acidic aqueous solution to the obtained soluble matter to regulate the pH of said soluble matter to 3 or less, thereby precipitating a carbonaceous component therefrom, and (d) graphitizing the thus precipitated carbonaceous component at 2,400.degree. C. or higher temperature.

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patent: 3552922 (1971-01-01), Ishikawa et al.
patent: 4225463 (1980-09-01), Unger et al.
patent: 4276246 (1981-06-01), Bonzom et al.
patent: 4277325 (1981-07-01), Greenwood
patent: 4414192 (1983-11-01), Palm et al.

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