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):
- 5580839
- 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}
}