Stuart Extraction '84

Symposium on Liquid - Liquid Extraction Science
1. Auflage 2013
ISBN: 978-1-4832-8462-0
Verlag: Elsevier Science & Techn.
Format: PDF
Kopierschutz: 1 - PDF Watermark

E-Book, Englisch, 328 Seiten, Web PDF

Extraction '84 presents the proceedings of the Symposium on Liquid-Liquid Extraction Science, held in Dounreay, Scotland, on November 27-29, 1984. This book discusses the principle involved in liquid-liquid extraction. Organized into 22 chapters, this compilation of papers begins with an overview of the performances of pulsed columns, including decontamination factors and recovery yields. This text then discusses the alternative ways of managing neptunium in the Purex process and reviews the main coordination and redox characteristics of neptunium in nitric medium. Other chapters consider the mass transfer measurements made in a pulsed plate liquid-liquid extraction column. This book discusses as well the extraction of uranium from wet process phosphoric acid. The final chapter deals with full-scale pulse column tests, which have been performed with uranium and simulated fission products to evaluate. This book is a valuable resource for chemical engineers, chemists, chemical physicists, and research workers.

Dr. Sam Stuart is a physiotherapist and a research Fellow within the Balance Disorders Laboratory, OHSU. His work focuses on vision, cognition and gait in neurological disorders, examining how technology-based interventions influence these factors. He has published extensively in world leading clinical and engineering journals focusing on a broad range of activities such as real-world data analytics, algorithm development for wearable technology and provided expert opinion on technology for concussion assessment for robust player management. He is currently a guest editor for special issues (sports medicine and transcranial direct current stimulation for motor rehabilitation) within Physiological Measurement and Journal of NeuroEngineering and Rehabilitation, respectively.

Autoren/Hrsg.

Stuart, Sam

Inhaltsverzeichnis

1;Front Cover;1
2;Extraction '84: Symposium on Liquid – Liquid Extraction Science;2
3;Copyright Page;3
4;Table of Contents;5
5;CHAPTER 1. A FIVE YEARS EXPERIENCE OF PULSE COLUMNS EXTRACTION CYCLES FOR THE REPROCESSING OF FAST BREEDER REACTOR FUELS AT THE MARCOULE PILOT PLANT (SAP);8
5.1;INTRODUCTION;8
5.2;FUEL REPROCESSING CAMPAIGNS;10
5.3;PULSE COLUMN CHARACTERISTICS;10
5.4;RESULTS;11
5.5;CONCLUSIONS;16
6;CHAPTER 2. BEHAVIOUR OF PALLADIUM IN THE PUREX PROCESS;26
6.1;INTRODUCTION;26
6.2;I. STATE OF PALLADIUM IN THE FUEL;26
6.3;II. SOLUTION CHEMISTRY OF PALLADIUM IN NITRIC ACID;27
6.4;III. PALLADIUM EXTRACTION BY 30 % TBP-DODECANE;30
6.5;CONCLUSION;32
6.6;REFERENCES;32
7;CHAPTER 3. CHEMICAL PROPERTIES OF NEPTUNIUM APPLIED TO NEPTUNIUM MANAGEMENT IN EXTRACTION CYCLES OF PUREX PROCESS;38
7.1;INTRODUCTION;38
7.2;STATE OF ART IN THE NEPTUNIUM CHEMISTRY RELATED TO THE REPROCESSING;39
7.3;MODELISATION OF NEPTUNIUM BEHAVIOUR IN THE CYCLES OF THE PUREX PROCESS;43
7.4;CONCLUSION;46
7.5;REFERENCES;47
8;CHAPTER 4. THE BEHAVIOUR OF TECHNETIUM IN A NUCLEAR FUEL REPROCESSING PLANT;54
8.1;INTRODUCTION;54
8.2;RESULTS AND DISCUSSION;54
8.3;CONCLUSIONS;57
8.4;ACKNOWLEDGEMENTS;57
8.5;REFERENCES;57
9;CHAPTER 5. URANIUM MASS TRANSFER IN A PULSED COLUMN;64
9.1;INTRODUCTION;64
9.2;EQUIPMENT;65
9.3;EXPERIMENTAL PROCEDURE;65
9.4;RESULTS;66
9.5;INTERPRETATION;67
9.6;DISCUSSION;68
9.7;CONCLUSIONS;69
9.8;REFERENCES;70
9.9;ACKNOWLEDGEMENTS;70
9.10;NOMENCLATURE;71
10;CHAPTER 6. The Extraction of Uranium from Wet Process Phosphoric Acid Using a Liquid Surfactant Membrane System;76
10.1;1. Introduction;76
10.2;2. Examination of the W.P.P.A. process;79
10.3;References;87
11;CHAPTER 7. SEPARATION OF NEPTUNIUM FROM URANIUM AND PLUTONIUM IN THE PUREX PROCESS;90
11.1;INTRODUCTION;90
11.2;EXPERIMENTAL;91
11.3;RESULTS AND DISCUSSION;91
11.4;REFERENCES;94
12;CHAPTER 8. MODELS FOR PERFORMANCE OF EXTRACTION COLUMNS BASED ON ACTUAL DROP BEHAVIOUR;98
12.1;INTRODUCTION;98
12.2;MODELS WITH FORWARD FLOW OF DROPS;99
12.3;MODELS WITH BACKFLOW OF DROPS;102
12.4;REFERENCES;104
12.5;LIST OF SYMBOLS;105
13;CHAPTER 9. DESIGN PRINCIPLES FOR ELECTRICAL COALESCERS;108
13.1;INTRODUCTION;108
13.2;BACKGROUND;108
13.3;THEORETICAL CONSIDERATIONS IN THE BEHAVIOUR OF ELECTRICAL COALESCERS;109
13.4;EXPERIMENTAL APPARATUS AND PROCEDURE;113
13.5;EXPERIMENTAL RESULTS;114
13.6;DISCUSSIONS;115
13.7;CONCLUSIONS;117
13.8;REFERENCES;117
14;CHAPTER 10. PULSED PLATE LIQUID EXTRACTOR DESIGN;122
14.1;INTRODUCTION;122
14.2;BASIS OF DESIGN PROCEDURE;123
14.3;CONTINUOUS PHASE BACKMIXING;125
14.4;EXPERIMENTAL;125
14.5;RESULTS;126
14.6;NOMENCLATURE;128
14.7;REFERENCES;128
15;CHAPTER 11. DAVY McKEE'S COMBINED MIXER SETTLER;132
15.1;INTRODUCTION;132
15.2;CONTACTING EQUIPMENT;133
15.3;COST BENEFITS;134
15.4;COMBINED MIXER SETTLER APPLICABILITY;136
15.5;CURRENT DEVELOPMENT ACTIVITIES;138
15.6;CONCLUSIONS;138
15.7;ACKNOWLEDGEMENTS;139
15.8;REFERENCES;139
16;CHAPTER 12. THE USE OF ULTRASONIC INSTRUMENTATION INLIQUID/LIQUID EXTRACTION PLANT;146
16.1;INTRODUCTION;146
16.2;CONCENTRATION OF SOLUTIONS;147
16.3;LIQUID LEVELS;149
16.4;LIQUID/LIQUID INTERFACE;151
16.5;CONCLUSIONS;152
16.6;ACKNOWLEDGEMENTS;153
16.7;REFERENCES;153
17;CHAPTER 13. HYDRODYNAMICS AND DROP SIZE DISTRIBUTIONS IN A PILOT SCALE SIEVE PLATE EXTRACTION COLUMN;160
17.1;INTRODUCTION;160
17.2;BACKGROUND;160
17.3;EXPERIMENTAL INVESTIGATION;163
17.4;DISCUSSION OF RESULTS;165
17.5;CONCLUSIONS;168
17.6;NOMENCLATURE;169
17.7;REFERENCES;170
18;CHAPTER 14. THE SOLVENT EXTRACTION OF URANIUM AND PLUTONIUM FROM NITRIC/SULPHURIC ACID SOLUTIONS;180
18.1;INTRODUCTION;180
18.2;THE AKUFVE SYSTEM;181
18.3;SULPHATE PARTITION SYSTEMS;182
18.4;THE QUANTEX COMPUTER MODEL;183
18.5;ACKNOWLEDGEMENT;184
18.6;REFERENCES;185
19;CHAPTER 15. EFFECT OF MASS TRANSFER PARAMETERS ON ZINC EXTRACTION BY HDEHP;190
19.1;INTRODUCTION;190
19.2;FORMULATION OF THE MODEL;191
19.3;EXPERIMENTAL;193
19.4;CONCLUSIONS;194
19.5;ACKNOWLEDGEMENTS;194
19.6;NOMENCLATURE;195
19.7;REFERENCES;195
20;CHAPTER 16. USE OF REFLUX IN THE SOLVENT EXTRACTION OF METALS;200
20.1;Summary;200
20.2;1. Introduction;200
20.3;2. Theory;201
20.4;3. Experimental;203
20.5;4 . Results and Discussion;204
20.6;6. Nomenclature;205
20.7;7. References;206
21;CHAPTER 17. TIME DEPENDANT MASS TRANSFER RATES IN A LIQUID-LIQUID SYSTEM EXHIBITING INTERFACIAL TURBULENCE;210
21.1;ABSTRACT;210
21.2;INTRODUCTION;210
21.3;EXPERIMENTAL STUDY;212
21.4;RESULTS AND DISCUSSION;213
21.5;CONCLUSIONS;216
21.6;ACKNOWLEDGEMENTS;216
21.7;NOMENCLATURE;217
21.8;REFERENCES;218
22;CHAPTER 17. ESTIMATION OF THE DISPERSED PHASE HOLD-UP IN A PULSED PERFORATED-PLATE COLUMN FROM PRESSURE DROP MEASUREMENTS;224
22.1;INTRODUCTION;224
22.2;THEORY;225
22.3;EXPERIMENT;228
22.4;RESULTS;229
22.5;CONCLUSIONS;230
22.6;ACKNOWLEDGEMENTS;230
22.7;NOMENCLATURE;231
22.8;REFERENCES;231
23;CHAPTER 18. INTERFACIAL ACTIVITY IN THE TWO PHASE SYSTEMS;238
23.1;INTRODUCTION;238
23.2;ASSESSMENT OF EXISTING DATA;239
23.3;EXPERIMENTAL;239
23.4;RESULTS;240
23.5;DISCUSSION;241
23.6;CONCLUSIONS;243
23.7;ACKNOWLEDGEMENT;244
23.8;NOMENCLATURE;244
23.9;REFERENCES;245
24;CHAPTER 19. THE SELECTION OF LIQUID-LIQUID EXTRACTION CONTACTORS FOR NUCLEAR FUEL REPROCESSING;252
24.1;INTRODUCTION;252
24.2;CONSIDERATIONS IN RESPECT OF NUCLEAR FUEL REPROCESSING;252
24.3;CONTACTOR SELECTION;253
24.4;THE REQUIREMENTS FOR NUCLEAR FUEL REPROCESSING;254
24.5;CONTACTOR REQUIREMENTS;255
24.6;SPECIFIC EXAMPLES OF CONTACTOR USAGE;259
24.7;SUMMARY OF EXPERIENCE;261
24.8;INDUSTRIAL SCALE NUCLEAR FUEL REPROCESSING PLANTS;262
24.9;APPENDIX;263
24.10;Reference;263
25;CHAPTER 20. SOLVENT EXTRACTION - A BRIEF REVIEW OF SOME RECENT DEVELOPMENTS;264
25.1;INTRODUCTION;264
25.2;1. LIQUID MEMBRANE SYSTEMS;265
25.3;2 . USE OF LIQUID CARBON DIOXIDE AS EXTRACTANT;265
25.4;3. PRECIOUS METAL EXTRACTION;266
25.5;REFERENCES;267
26;CHAPTER 21. COMPARISON OF EXPERIMENT AND SIMULATION FOR PUREX B-TYPE ELECTROREDUCTION PULSED COLUMNS;274
26.1;1. INTRODUCTION;274
26.2;2. BASICS OF MODELLING THE ELECTRO COLUMNS;276
26.3;3t THE ELECTRO-REDUCTION COLUMN ELKE;280
26.4;4. CONCLUSIONS;284
26.5;REFERENCES;285
27;CHAPTER 22. DESIGN AND PERFORMANCE OF A PULSE COLUMN SYSTEM FOR FBR FUEL REPROCESSING;286
27.1;1. INTRODUCTION;286
27.2;2. FULL-SCALE PULSE COLUMN SYSTEM;287
27.3;3. FLOW CHARACTERISTICS AND SEPARATION EFFICIENCY;288
27.4;4. LIQUID-TRANSFER SYSTEM AND INSTRUMENTATION DEVELOPMENT;291
27.5;5. CONCLUSIONS;295
27.6;6. REFERENCES;296
28;Extraction' 84: Discussion of Papers;298
29;Discussion of Papers;299