Sequestering of CA.sup.++ and MG.sup.++ in aqueous media using z

Details Sequestering of CA.sup.++ and MG.sup.++ in aqueous media using z Sequestering of CA.sup.++ and MG.sup.++ in aqueous media using z

1977-06-27

1978-06-13

Hart, Charles N.

Liquid purification or separation

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

Responsive to fluid flow

210 57, 252179, C02B 144, C02B 502

Patent

active

040947785

ABSTRACT:
Mixtures of zeolite A and zeolite X containing about 40 to 70 weight per cent of each species are found to exhibit a synergistic effect in the sequestering by ion exchange of calcium and magnesium ions in hard water. These zeolite mixtures can be advantageously used in detergent compositions as substitutes in part or in full for polyphosphate builders.

REFERENCES:
patent: 1683967 (1928-09-01), Foster et al.
patent: 3977968 (1976-08-01), Odland
patent: 3985669 (1976-10-01), Krummel et al.
patent: 4040972 (1977-08-01), Roebke et al.

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