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Removal of Iron from Aluminum Nitrate.

Authors
Schultze-LE; Bauer-DJ; Eisele-JA
Source
U S Pat 4 032 613 1977 Jun; :
Link
NIOSHTIC No.
10012026
Abstract
Iron is removed from concentrated aluminum nitrate solution by solvent extraction with tri-n-butyl phosphate (tbp). Thus, a feed consisting of 100 g of al(no3)3.9H2o and 0.85 G of fe(no3)3.9H2o was melted at 70 deg c and extracted at that temperature by contacting with 24 ml of undiluted tbp. The contacting consisted of agitating the molten salt and tbp with a mechanical stirrer. The tbp was separated from the residue decanting it off the cooled, solidified salt, and was stripped by means of contacting with an equal volume of water. Analysis of the residue showed that the extraction reduced the iron content of the feed to less than 0.05 G of fe(no3)3.9H2o.
Publication Date
19770601
Document Type
PA;
Fiscal Year
1977
NTIS Accession No.
NTIS Price
Identifying No.
PAT 4,032,613
NIOSH Division
RERC;
Source Name
U.S. Pat. 4,032,613, June 28, 1977; Chem. Abstr. Not Found
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