Process for using magnetically ballasted sorbents

Details Process for using magnetically ballasted sorbents Process for using magnetically ballasted sorbents

1979-08-30

1981-08-18

Cintins, Ivars C.

Liquid purification or separation

Processes

Ion exchange or selective sorption

210675, 210679, 210682, 210688, B01D 1502

Patent

active

042845114

ABSTRACT:
Solid sorbents such as activated carbon and ion exchange resins are ballasted with finely divided particles of a non-corrosive, magnetic iron-chromium alloy to increase their effective specific gravity and to render them recoverable by magnetic means. The sorbents are used to selectively extract one or more constituents contained in a liquid as by contacting in a multi-stage fluidized bed.

REFERENCES:
patent: 2642514 (1953-06-01), Herkenhoff
patent: 2742381 (1956-04-01), Weiss et al.
patent: 2932552 (1960-04-01), Weiss et al.
patent: 3560378 (1971-02-01), Weiss et al.
patent: 3650949 (1972-03-01), Hager et al.
patent: 3788933 (1974-01-01), Fries
patent: 3803033 (1974-04-01), Sutherland
patent: 4134831 (1979-01-01), Dawson et al.
patent: 4168971 (1979-09-01), Szczepanski
Bozorth, R. M. Ferromagnetism, D. Van Nostrand Co., Inc., N.Y., 1951, pp. 226-227.
Chemical Engineers' Handbook, John H. Perry (editor), 4th ed., McGraw-Hill, 1963, pp. 5-62.

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