Method for the production of graphite-hydrogensulfate

Details Method for the production of graphite-hydrogensulfate Method for the production of graphite-hydrogensulfate

1977-02-11

1978-05-23

Meros, Edward J.

Chemistry of inorganic compounds

Carbon or compound thereof

Oxygen containing

423448, 423460, C01B 3100, C01B 3104

Patent

active

040910830

ABSTRACT:
Production of graphite-hydrogensulfate by dispersing crystalline graphite particles in sulfuric acid, agitating the mixture, adding hydrogen peroxide to the agitated dispersion and continuing agitation until the graphite is converted to graphite-hydrogensulfate. Excess acid is separated and the residual acid in the solid product is removed by washing. The graphite-hydrogensulfate may be heated to transform it into expanded graphite. The method minimizes pollution of the atmosphere with noxious gases and also makes possible ready recovery of unused acid.

REFERENCES:
patent: 1191383 (1916-07-01), Aylsworth
patent: 3389964 (1968-06-01), Olstowski
patent: 3414381 (1968-12-01), Olstowski et al.
patent: 3885007 (1975-05-01), Olsen

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