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Title: METHOD OF RECOVERING THORIUM

Abstract

A method is described for recovering thorium from impurities found in a slag containing thorium and said impurities, comprising leaching a composition containing thorium with water, removing the water solution, treating the residue with hydrochloric acid, separating the solution from the insoluble residue, adjusting its acidity to 1 to 3 normal, adding oxalic acid, and thereafter separating the precipitated thorium oxalate digesting the residue from the hydrochloric acid treatment with a strong solution of sodium hydroxide at an elevated temperature, removing said solution and treating the insoluble residue with hydrochloric acid, separating the solution from the insoluble residue, adjusting the acidity of this solution to 1 to 3 normal, adding nitric acid to oxidize the iron present, adding oxalic acid and thereafter separating the thorium oxalate thus precipitated.

Inventors:
Issue Date:
Research Org.:
Originating Research Org. not identified
OSTI Identifier:
4304956
Patent Number(s):
2816122
Assignee:
U.S. Atomic Energy Commission DTIE; NSA-12-006995
NSA Number:
NSA-12-006995
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-58
Country of Publication:
United States
Language:
English
Subject:
PATENTS; ACIDITY; HYDROCHLORIC ACID; IMPURITIES; IRON; LEACHING; NITRIC ACID; OXALIC ACID; OXIDATION; PATENT; PRECIPITATION; RECOVERY; RESIDUES; SODIUM HYDROXIDES; SOLUTIONS; THORIUM; WATER

Citation Formats

Fisher, R.W. METHOD OF RECOVERING THORIUM. United States: N. p., 1957. Web.
Fisher, R.W. METHOD OF RECOVERING THORIUM. United States.
Fisher, R.W. Tue . "METHOD OF RECOVERING THORIUM". United States.
@article{osti_4304956,
title = {METHOD OF RECOVERING THORIUM},
author = {Fisher, R.W.},
abstractNote = {A method is described for recovering thorium from impurities found in a slag containing thorium and said impurities, comprising leaching a composition containing thorium with water, removing the water solution, treating the residue with hydrochloric acid, separating the solution from the insoluble residue, adjusting its acidity to 1 to 3 normal, adding oxalic acid, and thereafter separating the precipitated thorium oxalate digesting the residue from the hydrochloric acid treatment with a strong solution of sodium hydroxide at an elevated temperature, removing said solution and treating the insoluble residue with hydrochloric acid, separating the solution from the insoluble residue, adjusting the acidity of this solution to 1 to 3 normal, adding nitric acid to oxidize the iron present, adding oxalic acid and thereafter separating the thorium oxalate thus precipitated.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1957},
month = {12}
}