Removal of iron compounds from organic process streams

Details Removal of iron compounds from organic process streams Removal of iron compounds from organic process streams

1981-06-10

1983-01-25

Cintins, Ivars C.

Liquid purification or separation

Processes

Ion exchange or selective sorption

B01D 1504

Patent

active

043702406

ABSTRACT:
Weakly basic ion exchange resins are used to remove iron compounds in anhydrous or substantially anhydrous organic systems such as phenolic process streams. The resins may be either in the form of a weak salt such as the amine hydrochloride or may be a protonated amine carboxylic acid in the acidic form. In either case, we have determined that the active site does not perform in a conventional ion exchange manner but rather forms a complex with the entire iron compound molecule. While the complex is formed in a waterless or almost waterless system, it may be regenerated in an aqueous system.

REFERENCES:
patent: 3395099 (1968-07-01), Johnson
patent: 3425937 (1969-02-01), Weiss et al.
patent: 3715339 (1973-02-01), Rainer
patent: 4107218 (1978-08-01), Konrad et al.
patent: 4115260 (1978-09-01), Avery
patent: 4157298 (1979-06-01), van den Berg et al.
patent: 4327229 (1982-04-01), Mendiratta

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