Author: Thomas H. Siddall
Publisher:
ISBN:
Category : Extraction (Chemistry)
Languages : en
Pages : 30
Book Description
Equilibrium data are presented for the distribution of thorium nitrate and nitric acid between aqueous solutions and tri-n-butyl phosphate diluted with kerosene.
Extraction of Thorium Nitrate from Nitric Acid by TBP - "Ultrasene"
Author: Thomas H. Siddall
Publisher:
ISBN:
Category : Extraction (Chemistry)
Languages : en
Pages : 30
Book Description
Equilibrium data are presented for the distribution of thorium nitrate and nitric acid between aqueous solutions and tri-n-butyl phosphate diluted with kerosene.
Publisher:
ISBN:
Category : Extraction (Chemistry)
Languages : en
Pages : 30
Book Description
Equilibrium data are presented for the distribution of thorium nitrate and nitric acid between aqueous solutions and tri-n-butyl phosphate diluted with kerosene.
The Tributyl Phosphate-nitric Acid Complex and Its Role in Uranium Extraction
Author: Thomas J. Collopy
Publisher:
ISBN:
Category : Extraction (Chemistry)
Languages : en
Pages : 24
Book Description
Publisher:
ISBN:
Category : Extraction (Chemistry)
Languages : en
Pages : 24
Book Description
Purification of Thorium by Solvent Extraction
Author: Morton Smutz
Publisher:
ISBN:
Category : Solvent extraction
Languages : en
Pages : 92
Book Description
Publisher:
ISBN:
Category : Solvent extraction
Languages : en
Pages : 92
Book Description
Process for Production of Pure Thorium and Uranium Nitrate from Monazite
Author: G. L. Bridger
Publisher:
ISBN:
Category : Monazite
Languages : en
Pages : 40
Book Description
Publisher:
ISBN:
Category : Monazite
Languages : en
Pages : 40
Book Description
On the Extraction of Thorium Nitrate with Organic Solvents
Author: Charles Clark Templeton
Publisher:
ISBN:
Category :
Languages : en
Pages : 246
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 246
Book Description
Literature Search
Author: Robert H. Ellerhorst
Publisher:
ISBN:
Category : Kerosene
Languages : en
Pages : 32
Book Description
Publisher:
ISBN:
Category : Kerosene
Languages : en
Pages : 32
Book Description
Solvent Extraction Study of the Thorium Nitrate, Nitric Acid, and Tributyl Phosphate-dodecane System
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
A solvent extraction study to determine equilibrium conditions of thorium nitrate-nitric acid with 30% tributyl phosphate in normal dodecane has been completed. Experimental conditions studied were 30 to 60°C, 0.05 to 1.5 M Th(NO3)4, and 0.0 to 3.0 M HNO3. The extractant concentration was constant at 30% tributyl phosphate. The equilibrium experiments have produced data which demonstrate that thorium nitrate concentration, free acid, and density are related in equilibrium behavior between the aqueous and organic phases from 30 to 60°C in the 30% tributyl phosphate-dodecane solvent extraction system. The concentration interactions apply to both the two- and three-phase regions. A linear correlation was observed for the density (D) of the aqueous or organic phase and the concentration of thorium and free acid. The general form of the equation is D = a(C/sub Th/ + bC/sub H/) + c, where a is the slope, b is the constant, c is the intercept, and C/sub Th/ and C/sub H/ are the molar concentrations of thorium and free acid respectively. The relationship of temperature, thorium nitrate, and free acid makes possible the definitions of the boundaries between the two- and three-phase regions. This dependence, in turn, permits operational control or simulation studies of the system within the two-phase region. The data demonstrate the interactions of the components of the Thorex system and can be used to improve the mathematical description of equilibrium in the SEPHIS-Thorex computer program.
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
A solvent extraction study to determine equilibrium conditions of thorium nitrate-nitric acid with 30% tributyl phosphate in normal dodecane has been completed. Experimental conditions studied were 30 to 60°C, 0.05 to 1.5 M Th(NO3)4, and 0.0 to 3.0 M HNO3. The extractant concentration was constant at 30% tributyl phosphate. The equilibrium experiments have produced data which demonstrate that thorium nitrate concentration, free acid, and density are related in equilibrium behavior between the aqueous and organic phases from 30 to 60°C in the 30% tributyl phosphate-dodecane solvent extraction system. The concentration interactions apply to both the two- and three-phase regions. A linear correlation was observed for the density (D) of the aqueous or organic phase and the concentration of thorium and free acid. The general form of the equation is D = a(C/sub Th/ + bC/sub H/) + c, where a is the slope, b is the constant, c is the intercept, and C/sub Th/ and C/sub H/ are the molar concentrations of thorium and free acid respectively. The relationship of temperature, thorium nitrate, and free acid makes possible the definitions of the boundaries between the two- and three-phase regions. This dependence, in turn, permits operational control or simulation studies of the system within the two-phase region. The data demonstrate the interactions of the components of the Thorex system and can be used to improve the mathematical description of equilibrium in the SEPHIS-Thorex computer program.
Separation of Thorium and Radium-228 by Solvent Extraction
Author: John Shepard Wiley
Publisher:
ISBN:
Category : Extraction (Chemistry)
Languages : en
Pages : 118
Book Description
Publisher:
ISBN:
Category : Extraction (Chemistry)
Languages : en
Pages : 118
Book Description
Bibliography on Nuclear Reactor Fuel Reprocessing and Waste Disposal: Fissionable material - Recovery
Author: T. F. Connolly
Publisher:
ISBN:
Category : Nuclear reactors
Languages : en
Pages : 180
Book Description
Publisher:
ISBN:
Category : Nuclear reactors
Languages : en
Pages : 180
Book Description
Technology, Uses, Irradiated Fuel, Reprocessing
Author: J.R. Allen
Publisher: Springer
ISBN: 9783540935728
Category : Science
Languages : en
Pages : 244
Book Description
In connection with the recent treatment of radium and the actinides, the Gmelin Institute is carrying out the description of thorium and its compounds. The supplement volume A 2 comprising the history, isotopes and the recovery of thorium and the supplement volumes C 1, C 2 and C 3 describing the compounds with the noble gases, hydrogen, oxygen compounds and nitrogen compounds have already been published; also published is supplement volume C 5 describing the compounds with sulfur, selenium, tellurium, and boron. The supplement volume D 1 and D 2 describing the properties of thorium ions in solution and the solvent extraction of thorium, as well as supplement volume E describing the coordination compounds have also been published. The present volume deals with the technical fabrication of important thorium compounds and their uses in the nuclear and non-nuclear fields. It also describes in detail the behavior of thorium nuclear fuels during operation of a nuclear power plant as well as the reprocessing of burnt-up thorium fuels. By far the most important Th compound is ThO2 due to its high chemical and thermal stability as well as its high melting point near 3000°C, the highest for any metal oxide. The inherent radioactivity of 232Th and the formation of radioactive daughter products are important limiting factors in the technical scale use of thorium compounds because of necessary radiation protection measures and of health physics. 232Th is transformed by neutrons to the fissile uranium isotope 233U. Thorium therefore is an excellent breeding material, especially for high-temperature reactors. A lot of basic and technical investigations for reprocessing of spent thorium fuel have to be done; no such reprocessing plants exist as yet.
Publisher: Springer
ISBN: 9783540935728
Category : Science
Languages : en
Pages : 244
Book Description
In connection with the recent treatment of radium and the actinides, the Gmelin Institute is carrying out the description of thorium and its compounds. The supplement volume A 2 comprising the history, isotopes and the recovery of thorium and the supplement volumes C 1, C 2 and C 3 describing the compounds with the noble gases, hydrogen, oxygen compounds and nitrogen compounds have already been published; also published is supplement volume C 5 describing the compounds with sulfur, selenium, tellurium, and boron. The supplement volume D 1 and D 2 describing the properties of thorium ions in solution and the solvent extraction of thorium, as well as supplement volume E describing the coordination compounds have also been published. The present volume deals with the technical fabrication of important thorium compounds and their uses in the nuclear and non-nuclear fields. It also describes in detail the behavior of thorium nuclear fuels during operation of a nuclear power plant as well as the reprocessing of burnt-up thorium fuels. By far the most important Th compound is ThO2 due to its high chemical and thermal stability as well as its high melting point near 3000°C, the highest for any metal oxide. The inherent radioactivity of 232Th and the formation of radioactive daughter products are important limiting factors in the technical scale use of thorium compounds because of necessary radiation protection measures and of health physics. 232Th is transformed by neutrons to the fissile uranium isotope 233U. Thorium therefore is an excellent breeding material, especially for high-temperature reactors. A lot of basic and technical investigations for reprocessing of spent thorium fuel have to be done; no such reprocessing plants exist as yet.