Liquid purification or separation – Processes – Ion exchange or selective sorption
Patent
1994-05-19
1997-04-08
Cintins, Ivars
Liquid purification or separation
Processes
Ion exchange or selective sorption
210683, B01D 1504
Patent
active
056184379
ABSTRACT:
A method for removing sulphate ions from an aqueous solution of an alkali metal halide containing sulphate ions, which method comprises contacting said solution with a particulate, composite ion-exchange material comprising a hydrous oxide of a metal selected from the group consisting of titanium, zirconium and cerium, dispersed on a support comprising a brine solution compatible material. Preferably the compatible material is selected from hydrous oxides of titanium, cerium and zirconium. An improved cost-effective practical method of sulphate removal is provided.
REFERENCES:
patent: 4178270 (1979-12-01), Fujita et al.
patent: 4415677 (1983-11-01), Lee et al.
patent: 4556463 (1985-12-01), Miaz et al.
patent: 5071563 (1991-12-01), Shiga et al.
Drackett Thomas S.
Maycock Kenneth R.
Mok Felix M. F.
Ulan Judith G.
Chemetics International Company Ltd.
Cintins Ivars
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