Pyrochemical Separations - OECD Nuclear Energy Agency

More documents

Recommendations

Info

J. Uhlir Pyrochemical Reprocessing Technology and Molten Salt Transmutation Reactor Systems........................................................................................................ 73 T. Inoue Actinide Recycling by Pyroprocess for Future Nuclear Fuel Cycle System ............ 79 S. Kitawaki, K. Kosugi, M. Fukushima, M. Myochin Evaluation of Pyrochemical Reprocessing Technologies for Practical Use............. 87 SESSION III Part A: Basic Data (Thermodynamics, Reaction Mechanisms Reaction Kinetics, Molecular Modelling, etc.) ..................................................... 97 Chairs: L. Koch, T. Ogawa M. Gaune-Escard, A.K. Adya, L. Rycerz Molten Salt Data for Pyrochemistry: New Research Advances and Development of Information System................................................................. 99 D. Lambertin, J. Lacquement, S. Sanchez, G. Picard Electrochemical Properties of Plutonium in Molten CaCl2-NaCl at 550°C ............. 111 F. Lantelme, T. Cartailler, P. Turq Application of Electrochemical Techniques in Pyropartitioning Processes and Reaction Modelling............................................................................................ 123 H. Yamana, J. Sheng, H. Moriyama Thermodynamic Stabilities of Lanthanides and Actinides in Molten Chloride and Liquid Metal........................................................................................ 135 Part B: Results and Experiences from Process Experiments ............................. 145 Chairs: M. Gaune-Escard, T. Inoue G.R. Choppin Results of Demonstration Programme of Electrometallurgical Processing of Breeder Reactor Fuel............................................................................................ 147 T. Ogawa, Y. Arai Nitride/Pyroprocess for MA Transmutation and Fundamental Database................. 157 T. Usami, M. Kurata, T. Inoue, J. Jenkins, H. Sims, S. Beetham, D. Brown Pyrometallurgical Reduction of Unirradiated TRU Oxides by Lithium in a Lithium Chloride Medium ................................................................................. 165 T. Koyama, K. Kinoshita, T. Inoue, M. Ougier, J.-P. Glatz, L. Koch Small-Scale Demonstration of Pyrometallurgical Processing for Metal Fuel and HLLW........................................................................................................ 177 T. Subramanian, B. Prabhakara Reddy, P. Venkatesh, R. Kandan, T. Vandarkuzhali, K. Nagarajan, P.R. Vasudeva Rao Studies on the Head-End Steps for Pyrochemical Reprocessing of Oxide Fuels........................................................................................................... 187 6
Part C: Process Simulation and Process Design .................................................. 195 Chairs: J. Uhlir, H. Boussier P. Hosnedl, O. Matal Development of Structural Material and Equipment for Molten Salt Technology ............................................................................................................... 197 H. Moriyama, H. Yamana, K. Moritani Kinetics of Pyrochemical Processing of Nuclear Materials Using Molten Salt and Liquid Metal ............................................................................................... 205 G. Picard, S. Sanchez, D. Lambertin, J. Lacquement A Rational Approach to Pyrochemical Processes Via Thermodynamic Analysis .................................................................................................................... 213 SESSION IV Open Discussion and Recommendations .............................................................. 227 Chair: C. Madic POSTER SESSION .......................................................................................................................... 231 K. Guerman, T. Reich, C. Sergeant, R. Ortega, V. Tarasov, M. Simonoff Technetium Metal and Pyrometallurgically Formed Sediments: Study and Speciation by Tc NMR and EXAFS/XANES.................................................... 233 V.V. Ignatiev, R.Ya. Zakirov, K.F. Grebenkine Molten Salt Burner Fuel Behaviour and Treatment.................................................. 243 C. Jouault, M. Allibert, R. Boen, X. Deschanels Recovery of Noble Metals (Ru, Rh, Pd, Mo) and Tellurium from Fission Products........................................................................................................ 255 S. Kitawaki, N. Kameshiro, M. Fukushima, M. Myochin Study of Oxidising Uranium for Pyrochemical Reprocessing.................................. 265 C. Pernel, M. Ougier, J.-P. Glatz, L. Koch, T. Koyama Partitioning of Americium Metal from Rare Earth Fission Products by Electrorefining ..................................................................................................... 275 W.A. Punjak, A.J. Vargas, Jr., G.D. Bird, E. Garcia Americium Extraction Via In Situ Chlorination of Plutonium Metal....................... 285 G. Bourgès, A. Godot, C. Valot, D. Devillard Pyro-Oxidation of Plutonium Spent Salts with Sodium Carbonate.......................... 287 S.A. Kuznetsov, M. Gaune-Escard Electrochemical Studies of EuCl3 and EuCl2 in an Equimolar NaCl-KCl Melt ......................................................................................................... 295 V. Lelek, T. Marek Generalised Perturbation Theory and Source of Information through Chemical Measurements........................................................................................... 307 7
Page 1 and 2: Nuclear Science Pyrochemical Separa
Page 3 and 4: OECD PROCEEDINGS Proceedings of the
Page 5: FOREWORD In the future, nuclear fue
Page 10 and 11: Annex 1. LIST OF PARTICIPANTS......
Page 12 and 13: In the poster session, eight poster
Page 14: OPENING SESSION 11
Page 18 and 19: OPENING ADDRESS Philippe Savelli De
Page 20: SESSION I National and Internationa
Page 23 and 24: A sixth project might be funded by
Page 25 and 26: Selective extraction of minor actin
Page 27 and 28: Work programme The work programme i
Page 29 and 30: Introduction Commercial nuclear pow
Page 31 and 32: The ATW system is predicated on the
Page 33 and 34: In the electrorefiner, the transura
Page 35 and 36: these materials will be sent direct
Page 37 and 38: alternative were to be used instead
Page 40 and 41: OVERVIEW OF RIAR ACTIVITY ON PYROPR
Page 42 and 43: • Non-proliferation resistance (h
Page 44 and 45: nuclear fuel (burn-up of 7.7% h.a.,
Page 46 and 47: In the framework of the programme f
Page 48 and 49: Figure 1. Closed fuel cycles based
Page 50 and 51: BNFL’S MOLTEN SALTS PROGRAMME: IN
Page 52 and 53: technologies, demonstrated closure
Page 54 and 55: In summary, fast flux systems with
Page 56 and 57: ANL has utilised a design value of
Page 58 and 59:
processes used for aqueous systems
Page 60 and 61:
Investment in BNFL’s molten salts
Page 62 and 63:
ASSESSMENT OF PYROCHEMICAL PROCESSE
Page 64:
SESSION II Role and Requirements of
Page 67 and 68:
Scope The present low price of uran
Page 69 and 70:
At present, the transport of spent
Page 71 and 72:
[11] V.K. Afonichkin, V.E. Komarov
Page 73 and 74:
Figure 3. Electropotential relative
Page 76 and 77:
PYROCHEMICAL REPROCESSING TECHNOLOG
Page 78 and 79:
ability of the pyrochemical and pyr
Page 80 and 81:
Figure 1. View of the experimental
Page 82 and 83:
ACTINIDE RECYCLING BY PYROPROCESS F
Page 84 and 85:
Characteristics of technology The p
Page 86 and 87:
Experiments for separation of TRUs
Page 88:
[12] M. Kurata, Y. Sakamura and T.
Page 91 and 92:
Introduction Due to its simplicity,
Page 93 and 94:
Atmosphere control For metal fuel e
Page 95 and 96:
Recycling technology As for oxide f
Page 97 and 98:
REFERENCES [1] “Metal Fuel Cycle
Page 99 and 100:
Table 1. Oxide fuel electrowinning
Page 102 and 103:
MOLTEN SALT DATA FOR PYROCHEMISTRY:
Page 104 and 105:
Sample preparation Because of the h
Page 106 and 107:
Computational procedure Two approac
Page 108 and 109:
[10] M. Gaune-Escard, A. Bogacz, L.
Page 110 and 111:
Figure 4. Molar heat capacity of Eu
Page 112:
Figure 10. Experimental [32] and ca
Page 115 and 116:
Introduction Pyrochemical technique
Page 117 and 118:
Activity coefficient determination
Page 119 and 120:
The free oxide concentration depend
Page 121 and 122:
REFERENCES [1] CEA, “Assessment o
Page 123 and 124:
Figure 2. Cyclic voltammograms of P
Page 125 and 126:
Figure 6. Influence of the concentr
Page 127 and 128:
Introduction The design of a metal
Page 129 and 130:
i(t) is the experimental current at
Page 131 and 132:
sweep rate. At high sweep rates the
Page 133 and 134:
Conclusion The success of a pyropar
Page 135 and 136:
Figure 2. Diagram of the gas circui
Page 137 and 138:
Figure 8. Current reversal chronopo
Page 139 and 140:
Introduction The reductive liquid-l
Page 141 and 142:
0 [ MCl ex 3 in S] = f [ MCl 3, ] +
Page 143 and 144:
There is no concrete theoretical ba
Page 145 and 146:
Table 1. ∆G°f[M in Bi] summarise
Page 147 and 148:
Figure 4. Estimated ∆G f0 [M in B
Page 150 and 151:
RESULTS OF DEMONSTRATION PROGRAMME
Page 152 and 153:
inventory are the SNF from commerci
Page 154 and 155:
During the repeatability phase of t
Page 156 and 157:
[4] “A Roadmap for Developing Acc
Page 158:
Table 1. Free energies of formation
Page 161 and 162:
Introduction The study of partition
Page 163 and 164:
emained dissolved in Cd. Particular
Page 165 and 166:
Figure 1. Double-strata fuel cycle
Page 167 and 168:
Figure 5. Predicted E-p(O 2- ) diag
Page 169 and 170:
Introduction Lithium has several ad
Page 171 and 172:
time to allow them to equilibrate t
Page 173 and 174:
The gas burette was calibrated with
Page 175 and 176:
Table 1. Approximate Gibbs free ene
Page 177 and 178:
Figure 2. Gas burette apparatus for
Page 180 and 181:
SMALL-SCALE DEMONSTARATION OF PYROM
Page 182 and 183:
Test plan The first phase of the jo
Page 184 and 185:
Plutonium recovery into a liquid Cd
Page 186 and 187:
Figure 1. Test schedule of joint st
Page 188 and 189:
Photo 1. Stainless steel box with A
Page 190 and 191:
STUDIES ON THE HEAD-END STEPS FOR P
Page 192 and 193:
the cathode deposit to 1 300°C to
Page 194 and 195:
REFERENCES [1] L. Burris, R.K. Steu
Page 196:
Figure 3. Schematic diagram of salt
Page 200 and 201:
DEVELOPMENT OF STRUCTURAL MATERIAL
Page 202 and 203:
Due to the used contrast it was pos
Page 204 and 205:
Molten salt storage tanks Molten sa
Page 206:
REFERENCES [1] M. Hron, P. Hosnedl,
Page 209 and 210:
Introduction Pyrochemical processin
Page 211 and 212:
( µ ) K m s = 5× 10− 8 12 T ( )
Page 213 and 214:
Conclusions For the development of
Page 215 and 216:
Figure 1. Fuel salt flow rate requi
Page 217 and 218:
Introduction The feasibility of a n
Page 219 and 220:
conditional acidity scale, that is
Page 221 and 222:
Cerium and plutonium chemical prope
Page 223 and 224:
REFERENCES [1] L. Mouron, S. Grandj
Page 225 and 226:
[27] M. Garcia, Y. Castrillejo, P.
Page 227 and 228:
Figure 5. Possibilities for a selec
Page 230:
SESSION IV Open Discussion and Reco
Page 233 and 234:
Professor Madic concluded from the
Page 236 and 237:
TECHNETIUM METAL AND PYROMETALLURGI
Page 238 and 239:
Chemical preparations All reagents
Page 240 and 241:
REFERENCES [1] K. Ben Said, M. Fatt
Page 242 and 243:
Figure 1. Radiochemical hutch of RO
Page 244:
Figure 6. Tc K-edge k 3 -weighted E
Page 247 and 248:
Introduction The use of the molten
Page 249 and 250:
designs [1,2], in which a single mo
Page 251 and 252:
eactor inlet temperature. A few exp
Page 253 and 254:
In experiments [15] a successful at
Page 255 and 256:
REFERENCES [1] H.J. MacPherson, Rea
Page 257 and 258:
Figure 2. Separation factors betwee
Page 259 and 260:
Introduction The first axis of the
Page 261 and 262:
The metal was either cast into the
Page 263 and 264:
REFERENCES [1] J.A. Jensen, A.M. Pl
Page 265 and 266:
Figure 3. Lost of substances expres
Page 268 and 269:
STUDY OF OXIDISING URANIUM FOR PYRO
Page 270 and 271:
Thermodynamics simulation To examin
Page 272 and 273:
400°C. It is thought that the rate
Page 274 and 275:
Figure 4. Outline of roasting oxida
Page 276:
Table 1. Roasting oxidation examina
Page 279 and 280:
Scope There is presently a surplus
Page 281 and 282:
activity coefficient in liquid Bi t
Page 283 and 284:
[19] L. Martinot, J.C. Spirlet, G.
Page 285 and 286:
Element Table 2. Activity coefficie
Page 287 and 288:
H 2 O Figure 4. Double glove box wi
Page 290 and 291:
PYRO-OXIDATION OF PLUTONIUM SPENT S
Page 292 and 293:
Input and output products are weigh
Page 294 and 295:
REFERENCES [1] J.L. McNeese, “Pyr
Page 296 and 297:
Figure 1. Equipment for pyro-oxidat
Page 298 and 299:
ELECTROCHEMICAL STUDIES OF EUCL3 AN
Page 300 and 301:
Results and discussion Cyclic volta
Page 302 and 303:
The values of the ψT function, obt
Page 304 and 305:
The formal standard potential E* Eu
Page 306 and 307:
Figure 1. Cyclic voltammetric curve
Page 308:
Figure 4. Cyclic volammetric curves
Page 311 and 312:
Introduction There is a remarkable
Page 313 and 314:
We shall not go into the details (w
Page 315 and 316:
It is a special feature of the molt
Page 317 and 318:
Appendix B CORRECTIONS OF PARAMETER
Page 320 and 321:
Annex 1 LIST OF PARTICIPANTS BELGIU
Page 322 and 323:
Mr. Olivier CONOCAR CEA VALRHO SPHA
Page 324 and 325:
Mme Sylvie PILLON CEA-DRN/DER/SIS C
Page 326 and 327:
Dr. Toru OGAWA Group Leader Researc
Page 328 and 329:
Dr. James J. LAIDLER Argonne Nation
Page 330:
Annex 2 WORKSHOP ORGANISATION Chair
Page 333 and 334:
The study would cover: • Review o
Page 335 and 336:
ORDER FORM OECD Nuclear Energy Agen
show all

Pyrochemical Separations - OECD Nuclear Energy Agency

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?