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Title: EXPERIMENTS RELATING TO THE POSSIBLE PRODUCTION OF AN OXIDISING ACID LEACH LIQUOR BY AUTO-OXIDATION FOR THE EXTRACTION OF URANIUM

Abstract

Investigations were carried out in the development of a process for the generation of sulfuric acid and ferric sulfate by the oxidation of sulfur dioxide with excess air in the presence of certain catalysts, namely, iron and/or manganese in solution. This work was initiated to meet the need for a cheap and convenient leaching solution containing both sulfuric acid and ferric sulfate. Experiment had shown such a liquor to be partitularly suitable for the dissolution of the uranium minerals which occur in the Witwatersrand gold ores. The final method of production was essentially as follows. Sulfur dioxide was absorbed countercurrently in a tower, the packing of which was wetted with spent solution from the leach process from which the catalyst (iron) was obtained. The effluent solution was subsequently oxidized in a second tower with minute air bubbles introduced through a porous ceramic medium. The discharge from this tower contained the ferric sulfate and sulfuric acid at suitable concentrations for the leaching process. It was shown that the system could be operated on either a batch or a continuous basis, depending on the concentration of acid required. (auth)

Authors:
;
Publication Date:
Research Org.:
Union of South Africa
OSTI Identifier:
4269054
Report Number(s):
A/CONF.15/P/1116
NSA Number:
NSA-13-006513
Resource Type:
Technical Report
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-59
Country of Publication:
Country unknown/Code not available
Language:
English
Subject:
CHEMISTRY; AIR; CATALYSIS; ECONOMICS; FABRICATION; GOLD; IRON COMPOUNDS; IRON SULFATES; LEACHING; MANGANESE COMPOUNDS; OPERATION; ORE PROCESSING; OXIDATION; SOLUTIONS; SULFUR OXIDES; SULFURIC ACID; URANIUM MINERALS; URANIUM ORES; WATER

Citation Formats

Neytzell-De Wilde, F G, and Taverner, L. EXPERIMENTS RELATING TO THE POSSIBLE PRODUCTION OF AN OXIDISING ACID LEACH LIQUOR BY AUTO-OXIDATION FOR THE EXTRACTION OF URANIUM. Country unknown/Code not available: N. p., 1959. Web.
Neytzell-De Wilde, F G, & Taverner, L. EXPERIMENTS RELATING TO THE POSSIBLE PRODUCTION OF AN OXIDISING ACID LEACH LIQUOR BY AUTO-OXIDATION FOR THE EXTRACTION OF URANIUM. Country unknown/Code not available.
Neytzell-De Wilde, F G, and Taverner, L. 1959. "EXPERIMENTS RELATING TO THE POSSIBLE PRODUCTION OF AN OXIDISING ACID LEACH LIQUOR BY AUTO-OXIDATION FOR THE EXTRACTION OF URANIUM". Country unknown/Code not available.
@article{osti_4269054,
title = {EXPERIMENTS RELATING TO THE POSSIBLE PRODUCTION OF AN OXIDISING ACID LEACH LIQUOR BY AUTO-OXIDATION FOR THE EXTRACTION OF URANIUM},
author = {Neytzell-De Wilde, F G and Taverner, L},
abstractNote = {Investigations were carried out in the development of a process for the generation of sulfuric acid and ferric sulfate by the oxidation of sulfur dioxide with excess air in the presence of certain catalysts, namely, iron and/or manganese in solution. This work was initiated to meet the need for a cheap and convenient leaching solution containing both sulfuric acid and ferric sulfate. Experiment had shown such a liquor to be partitularly suitable for the dissolution of the uranium minerals which occur in the Witwatersrand gold ores. The final method of production was essentially as follows. Sulfur dioxide was absorbed countercurrently in a tower, the packing of which was wetted with spent solution from the leach process from which the catalyst (iron) was obtained. The effluent solution was subsequently oxidized in a second tower with minute air bubbles introduced through a porous ceramic medium. The discharge from this tower contained the ferric sulfate and sulfuric acid at suitable concentrations for the leaching process. It was shown that the system could be operated on either a batch or a continuous basis, depending on the concentration of acid required. (auth)},
doi = {},
url = {https://www.osti.gov/biblio/4269054}, journal = {},
number = ,
volume = ,
place = {Country unknown/Code not available},
year = {1959},
month = {10}
}

Technical Report:
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