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Title: Binary ferrihydrite catalysts

Abstract

A method of preparing a catalyst precursor comprises dissolving an iron salt and a salt of an oxoanion forming agent, in water so that a solution of the iron salt and oxoanion forming agent salt has a ratio of oxoanion/Fe of between 0.0001:1 to 0.5:1. Next is increasing the pH of the solution to 10 by adding a strong base followed by collecting of precipitate having a binary ferrihydrite structure. A binary ferrihydrite catalyst precursor is also prepared by dissolving an iron salt in water. The solution is brought to a pH of substantially 10 to obtain ferrihydrite precipitate. The precipitate is then filtered and washed with distilled water and subsequently admixed with a hydroxy carboxylic acid solution. The admixture is mixed/agitated and the binary ferrihydrite precipitate is then filtered and recovered. 3 figs.

Inventors:
; ;
Issue Date:
Research Org.:
Consortium for Fossil Fuel Liquefaction Science
OSTI Identifier:
415732
Patent Number(s):
5,580,839
Application Number:
PAN: 8-315,456
Assignee:
Univ. of Kentucky Research Foundation, Lexington, KY (United States)
DOE Contract Number:  
FC22-90PC90029
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 3 Dec 1996
Country of Publication:
United States
Language:
English
Subject:
40 CHEMISTRY; CATALYSTS; PRECURSOR; CHEMICAL PREPARATION; IRON COMPOUNDS; HYDROGEN COMPOUNDS; OXYGEN COMPOUNDS; PH VALUE; PRECIPITATION

Citation Formats

Huffman, G P, Zhao, J, and Feng, Z. Binary ferrihydrite catalysts. United States: N. p., 1996. Web.
Huffman, G P, Zhao, J, & Feng, Z. Binary ferrihydrite catalysts. United States.
Huffman, G P, Zhao, J, and Feng, Z. Tue . "Binary ferrihydrite catalysts". United States.
@article{osti_415732,
title = {Binary ferrihydrite catalysts},
author = {Huffman, G P and Zhao, J and Feng, Z},
abstractNote = {A method of preparing a catalyst precursor comprises dissolving an iron salt and a salt of an oxoanion forming agent, in water so that a solution of the iron salt and oxoanion forming agent salt has a ratio of oxoanion/Fe of between 0.0001:1 to 0.5:1. Next is increasing the pH of the solution to 10 by adding a strong base followed by collecting of precipitate having a binary ferrihydrite structure. A binary ferrihydrite catalyst precursor is also prepared by dissolving an iron salt in water. The solution is brought to a pH of substantially 10 to obtain ferrihydrite precipitate. The precipitate is then filtered and washed with distilled water and subsequently admixed with a hydroxy carboxylic acid solution. The admixture is mixed/agitated and the binary ferrihydrite precipitate is then filtered and recovered. 3 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1996},
month = {12}
}