Ferric and acid complex

Details Ferric and acid complex Ferric and acid complex

2006-04-25

2006-04-25

Nazario-Gonzalez, Porfirio (Department: 1621)

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

Organic compounds

Heavy metal containing

C556S147000

Reexamination Certificate

active

07034172

ABSTRACT:
A ferric and acid complex includes the reaction product of a chelant, iron oxide, a base, and a reaction promoter. The chelant has at least one carboxylic acid functionality. The reaction promoter has an Fe3+ion. A process for preparing the ferric and acid complex in a vessel includes charging solvent, the chelant, the base, the iron oxide, and the reaction promoter into the vessel. The solvent, chelant, base, iron oxide, and reaction promoter are heated to a temperature of at least 170° F. for a period of at least about 3 hours to form the ferric and acid complex. Due to the use of the reaction promoter having the Fe3+ion, the process for preparing the ferric and acid complex results in reduced degradation of the chelant during processing and, thus, a high quality ferric and acid complex.

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English language Abstract for JP58021690 extracted from espacenet.com database dated May 30, 2005.
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English language Abstract for JP1071842 extracted from espacenet.com database dated May 30, 2005.
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