Continuous solvent extraction of sulfur from the electrochemical oxidation of a basic sulfide solution in the CSTER system

1986 ◽  
Vol 25 (3) ◽  
pp. 834-836 ◽  
Author(s):  
Yen Shiang Shih ◽  
Jeou Long Lee
Keyword(s):  
Solvent Extraction ◽  
Electrochemical Oxidation ◽  
Continuous Solvent Extraction ◽  
Sulfide Solution

Impact of uranium carbide organics treated by prolonged boiling and electrochemical oxidation upon uranium and plutonium solvent extraction

2018 ◽  
Vol 106 (2) ◽  
pp. 95-106 ◽  
Author(s):  
Chris J. Maher ◽  
Christine Bouyer ◽  
Tamara L. Griffiths ◽  
Solène Legand ◽  
Gilles Leturcq ◽  
...  
Keyword(s):  
Solvent Extraction ◽  
Electrochemical Oxidation ◽  
Extraction Process ◽  
Efficient Operation ◽  
Uranium Carbide ◽  
Highly Active ◽  
Batch Tests ◽  
Solvent Quality ◽  
Carbide Dissolution ◽  
Uranium Plutonium

AbstractThe dissolution of uranium or uranium-plutonium carbide fuel in nitric acid leads to ~50% carbon evolved as carbon dioxide, the remainder remains in the solution as soluble organics. These dissolved organic molecules interfere with the solvent extraction of uranium and plutonium by complexing to the actinide ions and decreasing the efficiency of their extraction. Experiments reported here describe two series of experiments assessing the uranium carbide dissolution liquor treatment by prolonged boiling and electrochemical oxidation. Plutonium losses to aqueous and solvent raffinates are observed for untreated liquors, highlighting that mineralisation of dissolved organics is necessary to reduce the complexing effects of organic acids to an extent that permit efficient operation of a solvent extraction process both in the first solvent use (considered here) and for maintaining solvent quality during industrial solvent reuse in the highly active cycle. Solution carbon analysis and 30% TBP solvent extraction batch tests of uranium and plutonium originating from dissolved uranium carbide liquors untreated and after treatment are compared. These experiments demonstrate the reprocessing of uranium carbides by direct dissolution coupled to a mineralisation process, can achieve near quantitative uranium and high plutonium recoveries (99.9%).

scholarly journals DEVELOPMENT OF CONTINUOUS SOLVENT EXTRACTION PROCESSES FOR COAL DERIVED CARBON PRODUCTS

2006 ◽  
Author(s):  
Elliot B. Kennel ◽  
Stephen P. Carpenter ◽  
Dady Dadyburjor ◽  
Manoj Katakdaunde ◽  
Liviu Magean ◽  
...  
Keyword(s):  
Solvent Extraction ◽  
Continuous Solvent Extraction ◽  
Extraction Processes

scholarly journals DEVELOPMENT OF CONTINUOUS SOLVENT EXTRACTION PROCESSES FOR COAL DERIVED CARBON PRODUCTS

2005 ◽  
Author(s):  
Elliot B. Kennel ◽  
Chong Chen ◽  
Dady Dadyburjor ◽  
Liviu Magean ◽  
Peter G. Stansberry ◽  
...  
Keyword(s):  
Solvent Extraction ◽  
Continuous Solvent Extraction ◽  
Extraction Processes

scholarly journals Effects of Masking Agents on the Separation of Copper(II) from Iron(III) by Continuous Solvent Extraction with 8-Hydroxyquinoline.

2001 ◽  
Vol 17 (5) ◽  
pp. 671-674 ◽  
Author(s):  
Kunihiro WATANABE ◽  
Tomonori TANAKA ◽  
Arkin IBURAIM ◽  
Masayuki ITAGAKI
Keyword(s):  
Solvent Extraction ◽  
Masking Agents ◽  
Continuous Solvent Extraction

Deep desulfurization of condensate gasoline by electrochemical oxidation and solvent extraction

RSC Advances ◽  
2015 ◽  
Vol 5 (66) ◽  
pp. 53455-53461 ◽  
Author(s):  
Xiao-dong Tang ◽  
Tao Hu ◽  
Jing-jing Li ◽  
Fang Wang ◽  
Da-yong Qing
Keyword(s):  
Solvent Extraction ◽  
Electrochemical Oxidation ◽  
Supporting Electrolyte ◽  
Inorganic Salts ◽  
Organic Sulfides ◽  
Deep Desulfurization

Inorganic salts were used as a supporting electrolyte to oxidize organic sulfides and achieve the purpose of deep desulfurization.

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