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Title: SEPARATION OF THORIUM FROM URANIUM BY EXTRACTION

Abstract

A method is presented for the recovery and separation of uranium and thorium values contained in an aqueous nitric acid solution which is more than 3 M in nitric acid. The uranium and thorium containing solution preferable about 7 M in nitric acid is contacted with tributyl phosphatekerosene mixture. Both U and Th are extracted by the immiscible organic. After phase separation the Th is selectively back extracted by contacting with an aqueous nitric acid solution preferably between 0.1 to 1.5 M in nitric acid. The uranium which is still in the organic extractant phase may be recovered by contacting with water.

Inventors:
Issue Date:
OSTI Identifier:
4235978
Patent Number(s):
2897046
Assignee:
U.S. Atomic Energy Commission
Patent Classifications (CPCs):
C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS
NSA Number:
NSA-14-002500
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-60
Country of Publication:
United States
Language:
English
Subject:
CHEMISTRY; BUTYL PHOSPHATES; HYDROCARBONS; NITRIC ACID; RECOVERY; SEPARATION PROCESSES; SOLUTIONS; SOLVENT EXTRACTION; THORIUM; URANIUM; WATER

Citation Formats

Bohlmann, E G. SEPARATION OF THORIUM FROM URANIUM BY EXTRACTION. United States: N. p., 1959. Web.
Bohlmann, E G. SEPARATION OF THORIUM FROM URANIUM BY EXTRACTION. United States.
Bohlmann, E G. Tue . "SEPARATION OF THORIUM FROM URANIUM BY EXTRACTION". United States.
@article{osti_4235978,
title = {SEPARATION OF THORIUM FROM URANIUM BY EXTRACTION},
author = {Bohlmann, E G},
abstractNote = {A method is presented for the recovery and separation of uranium and thorium values contained in an aqueous nitric acid solution which is more than 3 M in nitric acid. The uranium and thorium containing solution preferable about 7 M in nitric acid is contacted with tributyl phosphatekerosene mixture. Both U and Th are extracted by the immiscible organic. After phase separation the Th is selectively back extracted by contacting with an aqueous nitric acid solution preferably between 0.1 to 1.5 M in nitric acid. The uranium which is still in the organic extractant phase may be recovered by contacting with water.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1959},
month = {7}
}