Methods of removing undesired ions from aqueous solutions

Details Methods of removing undesired ions from aqueous solutions Methods of removing undesired ions from aqueous solutions

1991-07-11

1992-10-27

Hruskoci, Peter

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

210721, 210724, 210726, 210756, 210757, 210904, 210913, 204DIG13, 423 55, 423365, C02F 162

Patent

active

051586878

ABSTRACT:
A method of removing undesired ions, such as chlorine, hypochlorite, chromium, cyanide and heavy metal ions, from an aqueous preparation containing one or more of said ions consists of adding to the aqueous preparation an effective amount of magnesium bisulfite to inactivate the undesired ions and then adjusting the pH of the mixture to an appropriate pH. Compositions containing magnesium bisulfite and divalent and trivalent ions are disclosed.

REFERENCES:
patent: 3740331 (1973-06-01), Anderson et al.
patent: 3826741 (1974-07-01), Nakamura
patent: 3835042 (1974-09-01), Lalancette et al.
patent: 3843769 (1974-10-01), Patridge et al.
patent: 4086150 (1978-04-01), Kindl et al.
patent: 4259297 (1981-03-01), Kaczur et al.
patent: 4364835 (1983-12-01), Cheh
patent: 4537686 (1985-08-01), Borbely et al.

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