Method of washing materials while reversibly circulating wash li

Details Method of washing materials while reversibly circulating wash li Method of washing materials while reversibly circulating wash li

1977-11-16

1979-08-14

Caroff, Marc L.

Cleaning and liquid contact with solids

Processes

Including regeneration, purification, recovery or separation...

8137, 68 13A, 134109, B08B 704

Patent

active

041644301

ABSTRACT:
Solid soiled materials are machine washed by withdrawing and recycling the wash liquor in contact with said solid soiled materials through a water-insoluble cation exchange polymer in particulate state having a calcium binding power of at least 2 mVal per gram, said polymer in particulate state being maintained out of contact with said solid soiled materials, for such time that the recycling wash liquor has passed through said polymer at least twice, in the presence of other soluble washing and cleaning compounds, while reversing the direction of flow of said wash liquor through said polymer repeatedly.

REFERENCES:
patent: 1450054 (1923-03-01), Titus
patent: 3023132 (1962-02-01), Diamond et al.
patent: 3339737 (1967-09-01), Kiscellus et al.
patent: 3424545 (1969-01-01), Bauman
patent: 3436343 (1969-04-01), Smith
patent: 3476600 (1969-11-01), Morgan et al.
patent: 4043833 (1977-08-01), Plura

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