Method of producing barium carbonate

Chemistry of inorganic compounds – Carbon or compound thereof – Oxygen containing

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4235663, C01F 1118

Patent

active

052757978

ABSTRACT:
A method is disclosed for producing barium carbonate by adding barium sulfate to coal tar pitch maintained at a temperature of about 350.degree. C. to about 450.degree. C., and thereafter heating the reactants to a temperature between 700.degree. C. to 950.degree. C. in a second stage. The second stage reaction product is reacted with an alkali metal carbonate.

REFERENCES:
patent: 3944685 (1976-03-01), Gunnerman

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