Treatment of aqueous systems

Details Treatment of aqueous systems Treatment of aqueous systems

1977-10-28

1980-03-11

Hart, Charles N.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

210 58, 252180, B01D 2101, C02B 120

Patent

active

041927443

ABSTRACT:
Aqueous compositions containing compounds having the formula: ##STR1## wherein R is a straight- or branched alkyl residue containing 11 to 17 carbon atoms and X and Y are the same or different and each is an alkali metal, an alkaline earth metal, ammonium, an amine radical or hydrogen for selectively flocculating iron ions.

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patent: 2894905 (1959-07-01), Bernard
patent: 3147318 (1964-09-01), Jungk
patent: 3430641 (1969-03-01), Newman
patent: 3479284 (1969-11-01), Lees
patent: 3527609 (1970-09-01), Vinso
patent: 3639292 (1972-02-01), Gilby
patent: 3755158 (1973-08-01), Inazuka et al.
patent: 3796667 (1974-03-01), Block et al.
patent: 3894946 (1975-07-01), Panzer et al.
patent: 3981779 (1976-09-01), Block et al.
Block et al. "Effect of Fe & Cu During Scale Suppression By Theshold Compounds," Desalination 1974, pp. 279-286. _
Sexsmith et al. Ind. Water Engineering, Dec. 1969, p. 20. _

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