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Title: Binary ferrihydrite catalysts

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:
OSTI Identifier:
415732
Assignee:
Univ. of Kentucky Research Foundation, Lexington, KY (United States) PTO; SCA: 400201; PA: EDB-97:015598; SN: 97001714624
Patent Number(s):
US 5,580,839/A/
Application Number:
PAN: 8-315,456
Contract Number:
FC22-90PC90029
Resource Relation:
Other Information: PBD: 3 Dec 1996
Research Org:
Consortium for Fossil Fuel Liquefaction Science
Country of Publication:
United States
Language:
English
Subject:
40 CHEMISTRY; CATALYSTS; PRECURSOR; CHEMICAL PREPARATION; IRON COMPOUNDS; HYDROGEN COMPOUNDS; OXYGEN COMPOUNDS; PH VALUE; PRECIPITATION

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