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Title: RECOVERY OF URANIUM FROM PITCHBLENDE

Abstract

The decontamination of uranium from molybdenum is described. When acid solutions containing uranyl nitrate are contacted with ether for the purpose of extracting the uranium values, complex molybdenum compounds are coextracted with the uranium and also again back-extracted from the ether with the uranium. This invention provides a process for extracting uranium in which coextraction of molybdenum is avoided. It has been found that polyhydric alcohols form complexes with molybdenum which are preferentially water-soluble are taken up by the ether extractant to only a very minor degree. The preferred embodiment of the process uses mannitol, sorbitol or a mixture of the two as the complexing agent.

Inventors:
Issue Date:
OSTI Identifier:
4309686
Patent Number(s):
2840452
Assignee:
U.S. Atomic Energy Commission
Patent Classifications (CPCs):
C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS
NSA Number:
NSA-12-014419
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-58
Country of Publication:
United States
Language:
English
Subject:
PATENTS; ALCOHOLS; COMPLEXES; ETHERS; EXTRACTION COLUMNS; MANNITOL; MOLYBDENUM COMPOUNDS; PATENT; PITCHBLENDE; RECOVERY; SORBITOL; SUGARS; URANINITES; URANIUM MINERALS; URANYL NITRATES

Citation Formats

Ruehle, A E. RECOVERY OF URANIUM FROM PITCHBLENDE. United States: N. p., 1958. Web.
Ruehle, A E. RECOVERY OF URANIUM FROM PITCHBLENDE. United States.
Ruehle, A E. Tue . "RECOVERY OF URANIUM FROM PITCHBLENDE". United States.
@article{osti_4309686,
title = {RECOVERY OF URANIUM FROM PITCHBLENDE},
author = {Ruehle, A E},
abstractNote = {The decontamination of uranium from molybdenum is described. When acid solutions containing uranyl nitrate are contacted with ether for the purpose of extracting the uranium values, complex molybdenum compounds are coextracted with the uranium and also again back-extracted from the ether with the uranium. This invention provides a process for extracting uranium in which coextraction of molybdenum is avoided. It has been found that polyhydric alcohols form complexes with molybdenum which are preferentially water-soluble are taken up by the ether extractant to only a very minor degree. The preferred embodiment of the process uses mannitol, sorbitol or a mixture of the two as the complexing agent.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1958},
month = {6}
}