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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.

Inventors:
 [1];  [1];  [1]
  1. Lexington, KY
Publication Date:
Research Org.:
Consortium for Fossil Fuel Liquefaction Science, Lexington, KY (United States)
OSTI Identifier:
870718
Patent Number(s):
US 5580839
Assignee:
University of Kentucky Research Foundation (Lexington, KY)
DOE Contract Number:  
FC22-90PC90029
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
binary; ferrihydrite; catalysts; method; preparing; catalyst; precursor; comprises; dissolving; iron; salt; oxoanion; forming; agent; water; solution; ratio; 0001; increasing; ph; 10; adding; strong; base; followed; collecting; precipitate; structure; prepared; brought; substantially; obtain; filtered; washed; distilled; subsequently; admixed; hydroxy; carboxylic; acid; admixture; mixed; agitated; recovered; catalyst precursor; comprises dissolving; acid solution; carboxylic acid; strong base; hydroxy carboxylic; oxoanion forming; distilled water; iron salt; forming agent; /502/

Citation Formats

Huffman, Gerald P, Zhao, Jianmin, and Feng, Zhen. Binary ferrihydrite catalysts. United States: N. p., 1996. Web.
Huffman, Gerald P, Zhao, Jianmin, & Feng, Zhen. Binary ferrihydrite catalysts. United States.
Huffman, Gerald P, Zhao, Jianmin, and Feng, Zhen. Mon . "Binary ferrihydrite catalysts". United States. https://www.osti.gov/servlets/purl/870718.
@article{osti_870718,
title = {Binary ferrihydrite catalysts},
author = {Huffman, Gerald P and Zhao, Jianmin and Feng, Zhen},
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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1996},
month = {1}
}

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