Process for the preparation of salts of iron amino and hydroxy c

Details Process for the preparation of salts of iron amino and hydroxy c Process for the preparation of salts of iron amino and hydroxy c

1990-08-16

1992-05-05

Prescott, Arthur C.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heavy metal containing

C07F 1502

Patent

active

051109654

ABSTRACT:
A process of preparing iron chelates of amino and hydroxy carboxylic acids, comprising reacting an oxide of iron with an amino or hydroxy carboxylic acid and a base in the presence of ferrous ion or metallic iron as a catalyst. Additional base is added to the resulting chelant and oxidation may be carried out to convert any ferrous ion to ferric.

REFERENCES:
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patent: 3767689 (1973-10-01), Donovan et al.
patent: 3867419 (1975-02-01), Iwano et al.
patent: 4216144 (1980-08-01), Ashmead
patent: 4364871 (1982-12-01), Svatek et al.
patent: 4438040 (1984-03-01), Svatek et al.
patent: 4558145 (1985-12-01), Smith et al.
patent: 4830716 (1989-05-01), Ashmead

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