Inorganic water-softening bead

Details Inorganic water-softening bead Inorganic water-softening bead

Filed on

1979-04-02

Date issued

1980-10-28

Examiner

Albrecht, Dennis L.

Patent Class

Compositions

SubClass

Water-softening or purifying or scale-inhibiting agents

SubSubClass

Water-insoluble base-exchange agent containing

Other Related Categories

210502, 210510, 252174, 25217423, 25217425, 252448, 252455Z, 264 25, 264109, 264117, 264122, 264125, 264126, 428402, 210687, B01J 3914, C01B 3328, C02F 142, C11D 312

Type

Patent

Status

active

Patent number

042305934

Description

ABSTRACT:
A non-water dispersible water-softening bead is disclosed having from 80 to 90% sodium alumino silicate and from 10 to 20% low density polyethylene. The bead has a diameter of between 200 and 1000 microns and a calcium capacity of at least 200 mg calcium carbonate/g. The sodium alumino silicate has a silica to aluminum oxide molar ratio of between 2:1 and 4:1 and a sodium oxide to aluminum oxide molar ratio of between 0.8:1 and 1.2:1.

REFERENCES:
patent: 2460516 (1949-02-01), Luaces
patent: 3048537 (1962-08-01), Pall
patent: 3181231 (1965-05-01), Breck
patent: 3375933 (1968-04-01), Rodman
patent: 3538020 (1970-11-01), Heskett
patent: 3651948 (1972-03-01), Bunn
patent: 4061807 (1977-12-01), Shaler
patent: 4066394 (1978-01-01), Leonard
patent: 4071377 (1978-01-01), Schwuger
patent: 4096081 (1978-06-01), Phenicie
patent: 4120653 (1978-10-01), Smolka

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