Water softening system particularly for individual appliances

Details Water softening system particularly for individual appliances Water softening system particularly for individual appliances

1984-11-23

1987-02-24

Cintins, Ivars

Liquid purification or separation

With heater or heat exchanger

Flow line connected in series with distinct separator

210190, 210282, B01J 4700

Patent

active

046455957

ABSTRACT:
A thermally regenerable ion exchange material is employed in a disposable cartridge preferably contained within an appliance such as a clothes washer or dishwasher. A hot water source is employed to regenerate the ion exchange material or to be mixed with cold water passed through the treatment cartridge. Additionally, in those situations requiring a high degree of deionization, hot water is used in conjunction with a heat exchanger to heat processed water rather than being mixed with it so as to produce fully de-ionized hot water.

REFERENCES:
patent: 2855364 (1958-10-01), Roberts
patent: 3719594 (1973-03-01), Borochaner
patent: 4184948 (1980-01-01), Dabby et al.
Kirk-Othmer, "Water (Municipal)", Encyclopedia of Chemical Technology, 2nd Ed., vol. 21, John Wiley & Son, 1970, pp. 693-694.
B. M. Kim, "Continuous Ion Exchange Process Using Thermally Regenerable Liquid Ion Exchangers", Patent Application Ser. No. 557,986 filed Dec. 5, 1983.
Kirk-Othmer, "Water (Municipal)", Encyclopedia of Chemical Technology, 2nd Ed., vol. 22, John Wiley & Son, 1970, pp. 97-103.
M. B. Jackson, "Methods of Preparation of Thermally Regenerable Ion Exchange Resins", Am. Chem. Soc. Div. Polym. Chem. Prepr. vol. 20, No. 1, 1979, pp. 624-627.
T-B Hsu & R. L. Pigford, "Properties of the Amphoretic, Thermally Regenerable Ion-Exchange Resins Amberlite XD-2 and Amberlite XD-5", Ind. Chem. Pros. Res. Dev., vol. 20, No. 2, 1981, pp. 361-365.
G. R. Ackerman et al., "Industrial Deionization with Amberlite.RTM. XD-2-A Thermally Regenerable Ion Exchange Resin", AIChE Symposium Series, vol. 73, No. 166, 1976, pp. 107-111.

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