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Title: PREPARATION OF URANIUM TRIOXIDE

Abstract

The production of uranium trioxide from aqueous solutions of uranyl nitrate is discussed. The uranium trioxide is produced by adding sulfur or a sulfur-containing compound, such as thiourea, sulfamic acid, sulfuric acid, and ammonium sulfate, to the uranyl solution in an amount of about 0.5% by weight of the uranyl nitrate hexahydrate, evaporating the solution to dryness, and calcining the dry residue. The trioxide obtained by this method furnished a dioxide with a considerably higher reactivity with hydrogen fluoride than a trioxide prepared without the sulfur additive.

Inventors:
Issue Date:
OSTI Identifier:
4183613
Patent Number(s):
2903334
Assignee:
U.S. Atomic Energy Commission
Patent Classifications (CPCs):
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
NSA Number:
NSA-14-006246
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-60
Country of Publication:
United States
Language:
English
Subject:
CHEMISTRY; AMMONIUM COMPOUNDS; EVAPORATION; PREPARATION; RESIDUES; SOLUTIONS; SULFAMIC ACID; SULFATES; SULFONIC ACIDS; SULFUR; SULFUR COMPOUNDS; SULFURIC ACID; URANIUM DIOXIDE; URANIUM TRIOXIDE; URANYL NITRATES; UREA; WATER

Citation Formats

Buckingham, J S. PREPARATION OF URANIUM TRIOXIDE. United States: N. p., 1959. Web.
Buckingham, J S. PREPARATION OF URANIUM TRIOXIDE. United States.
Buckingham, J S. Tue . "PREPARATION OF URANIUM TRIOXIDE". United States.
@article{osti_4183613,
title = {PREPARATION OF URANIUM TRIOXIDE},
author = {Buckingham, J S},
abstractNote = {The production of uranium trioxide from aqueous solutions of uranyl nitrate is discussed. The uranium trioxide is produced by adding sulfur or a sulfur-containing compound, such as thiourea, sulfamic acid, sulfuric acid, and ammonium sulfate, to the uranyl solution in an amount of about 0.5% by weight of the uranyl nitrate hexahydrate, evaporating the solution to dryness, and calcining the dry residue. The trioxide obtained by this method furnished a dioxide with a considerably higher reactivity with hydrogen fluoride than a trioxide prepared without the sulfur additive.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1959},
month = {9}
}