Removal of Mg.sup.++ and Ca.sup.++ ions from NaCl brine

Details Removal of Mg.sup.++ and Ca.sup.++ ions from NaCl brine Removal of Mg.sup.++ and Ca.sup.++ ions from NaCl brine

1983-09-19

1985-06-11

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Ion-exchange polymer or process of preparing

436 79, 210687, 204 98, C08D 520, G01N 3104

Patent

active

045229511

ABSTRACT:
Alkaline earth metal ions, e.g., Mg.sup.++ and/or Ca.sup.++, are removed from alkali metal brines, e.g., NaCl, by use of a particulate, macroporous, anion exchange resin containing the in-situ reaction product of polymeric, amorphous, hydrous zirconium oxide and a source of PO.sub.4.sup.--- ions, e.g., H.sub.3 PO.sub.4.

REFERENCES:
patent: 3041292 (1962-06-01), Hatch
patent: 3346422 (1967-10-01), Berger
patent: 3352800 (1967-11-01), Smith et al.
patent: 3920397 (1975-11-01), Small et al.
patent: 3925019 (1975-12-01), Small et al.
Chem. Abstracts, vol. 92, 1980 entries 83071x and 83073z.
Strelow et al., Analytical Chem. vol. 46, No. 11, Sep. 1974, pp. 1409-1414.
Singh et al., Ion-Exchange Symposium, Bhavnagar, India 1978, Part I, pp. 138-146.

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