Treatment of waste and residue containing sodium and potassium i

Details Treatment of waste and residue containing sodium and potassium i Treatment of waste and residue containing sodium and potassium i

1991-10-02

1992-06-23

Spear, Frank

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

210738, C02F 158

Patent

active

051240483

ABSTRACT:
The invention concerns a process for lowering or eliminating the sodium and potassium ion content in various forms of waste. According to the process, waste is treated with the residue, itself regarded as a pollutant since rich in fluosilicic acid, discharged from the manufacture of sulfuric acid on a calcic ore based on calcium phosphate.

REFERENCES:
patent: 4514366 (1985-04-01), Barber
Chemical Abstracts, vol. 92, No. 18, May 5, 1980, Columbus, Ohio, Kalach V. S. et al.: "Potassium flurosilicate" p. 157; colonne de droite; ref. No. 149396R *abrege*.
Chemical Abstracts, vol. 101, No. 10, Sep. 3, 1984, Columbus, Ohio; Garkun V. K. et al.: "Sodium flurosilicate", p. 145; colonne de droite; ref. No. 752627 *abrege*.

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