Process for the preparation of calcium carbonate for use in fluo

Details Process for the preparation of calcium carbonate for use in fluo Process for the preparation of calcium carbonate for use in fluo

1976-12-23

1978-07-11

Peters, G. O.

Chemistry of inorganic compounds

Carbon or compound thereof

Oxygen containing

423165, 423431, 23304, C01F 1118

Patent

active

041002644

ABSTRACT:
A method of producing finely-divided phosphor grade calcium carbonate having a calcite crystalline structure and a very low sodium content. The calcium carbonate is produced from calcium chloride having a high sodium impurity content, such as calcium chloride which is a by-product of the Solvay process for producing soda ash.

REFERENCES:
patent: 3321269 (1967-05-01), Yasui et al.
"Chemical Abstracts," vol. 71, 1969 -- 23,290z.
"Chemical Abstracts," vol. 76, 1972 -- 7,426w.

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