ORNL-4191 - the Molten Salt Energy Technologies Web Site

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F. J. Smith C. T. Thompson The transpiration method for obtaining liquid- vapor equilibrium data is being used (1) to cor- roborate data obtained by the equilibrium still technique and (2) to determine relative volatilities for compounds of interest that have not yet been studied. The apparatus being used closely re- seiiibles that described by Cantor.' 'The initial experiments were made with LiF- BeF, (86-14 mole %) over the temperature range 920 to 1055OC. Plots of the logarithms of the apparent vapor pressures of LiF and BeF, (based on the assumption that only LiF and BeF, were present in the vapor phase) vs 1/T were linear, although some scatter was evident in the data points for BeF,. The relative volatility of EeF, with respect to LiF was 4.0 I 0.2 over the temperature range investigated. This is in i-eason- able agreement with a value of 3.8 reported by Cantor' for LiF-BeF, (88-12 mole %) at 1000°C. 242 L. M. Ferris Recent experiments with L.iF-BeF, (90-10 mole %) gave a relative volatility of 4.7 (WeF, with respect to LiF), which is in good agreement with the average value of 4.71 obtained by Hightower and McNeese' using an equilibrium still. Experi- ments with LiF-BeF,-CeF, (85.5-9.5-5 mole %) gave vapor samples in which the concentration of CeF, was below the limit of detection by spcctio- chemical methods. The relative volatility (CcF, with respect to LiF) was less than 1 x lo-,, in agreement with the reported3 value of 3.33 x 10W4. 'Reac!or Chem. Div. Ann. Progr. Rep!. Dec. 31, 1966, ORNL-4076. 'M. E. Whatley to I). E. Ferguson, private communication, June 12, 1967. ,M. E. Whatley to D. E. Ferguson, private communication, July 20, 1967. t
22. Distillation of MSRE Fuel Carrier Salt 1,. E. McNeese W, L. Carter J. R. Hightower Equipment for demonstration of vacuum distillation using MSRE fuel salt has been built and assembled in its supporting framework. Installa- tion of the unit is in progress in Building 3541, where experiments using nonradioactive salt are to be carried out. During construction, a series of radiographic and ultrasonic examinations were made over areas of the vessels that will be sub- jected to 850 to 1000°C temperatures, and numerous dimensional measurements were taken bctween points on the still, condenser, and condensate receiver. Similar data will be obtained after nonradioactive operation and will be compared with MOUNT AND I I I@ CHECK INSTRUMENTATION -- HFATERS DFLIVEREQ PREPARE 354i -- FABHICATE STILL I!@ initial data in evaluating vessel integrity for subsequent radioactive operation. The assembled unit was stress relieved by an 8-hr anneal at 1600°F in an argon atmosphere in order 10 preclude dimensional changes during operation due to stresses arising during fabrication. Specimens of candidate materials of construction for vacuum distillation equipment were installed in the still so that each is exposed to molten-salt vapor and liquid in the region of highest temperature. The test specimens are attached to the drain tube and include Hastelloy N, grade AXF-SQBG isotropic graphite, Mo-TZM, CIaynes 1967 D ...... ORNL---DWG C7-6891A Fig. 22.1. Schedule of Activities Associated with Distillation of MSRE Fuel Carrier Salt. 243 J
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c c c Contract No. W-.740 5-eng- 26
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, INTRODUCTION ....................
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7 . SYSTEMS AND COMPONENTS DEVELOPM
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. 15.7 Oxygen Analysis ............
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i The objective of the Molten-Salt
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PART 1. MOLTEN-SALT REACTOR EXPERIM
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PART 2. MSBR DESlGN AND DEVELOPMENT
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especially when the system is stabi
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generated species in molten fluorid
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cold leg. The second loop, of Naste
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Part 1. Molten-Salt Reactor Experim
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was at full power continuously exce
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Analysis and details of operations
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1.2 REACTlVlTY BALANCE J. R. Engel
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alance results during this time sho
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II_- - 23 Table 1.2. MSRE Cumulotiv
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4 2 5 10 20 transient that followed
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27 Fig. 1.13. Motor of Reactor Cell
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personnel access to the area where
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accumulation rate at present indica
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The retrieval of the sample latch w
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The moisture condensed from the cel
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MSRE, details of some of the equipm
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39 Fig. 2.2. General View of Latch
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c 41 Table 2.1. Radiation Levels Fo
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significantly, indicating clearly t
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2.5 PUMPS P. G. Smith A. G. Grindel
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3.1 MSRE OPERATING EXPE RI ENCE C.
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The rate-of-fill interlocks, includ
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16 15 44 (3 42 I1 9 51 LLETHARGY 8
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shown as solid points in Fig. 4.1 (
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These are the results of two-dimens
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. r. ~ ~ ~ Fig. 4.8. Axiol Distribu
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. 59 Fig. 4.10. Axial Distribution
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- 12 0.0 $ 04 Lo ... z ? I- ;s -04
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Part 2. MSBR Design and Development
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ather than just the core and to pro
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A . 9.
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0 2 4 6810 LLLLLLU 1 INCHES COOLING
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however, electric heaters are provi
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I 43ft 3in REACTOR ’ t 40in. ! 3i
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of machining or close tolerances. T
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GASCONN I GAS SKIRT 4ft 8in. OD 19f
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271 TIRES 2%. A PITCH L- STEAM (la
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6.1 MSBR PHYSICS ANALYSIS 0. L. Smi
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4 V S; 0.06 v F 2.25 2.24 2.23 2.22
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0 8 6 4 7- 4=H20 SPECTRUM 2=D20 SPE
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chief indicators of performance. Th
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Work related to the Molten-Salt Bre
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I- 92 -Clt NO ClRCUl ATING BUBBLES
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L- a w r 94 ORNL-OWG 67-(1815 io‘
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about 500 mm Hg at the test operati
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1 I 1 I 1 98 MOTOR COUPLING dWER BE
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head and flow characteristics of th
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The chemical research and developme
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0 'i! m 0 w m d m w 0 W m 9 4 w lx
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Sample Nc. F312-10 FPi2-1: FP12-12
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~. 108 Table 8.2. Chemical Analyses
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tenfold or more as a consequence of
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mechanism is available which satisf
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An additional purpose of sampling w
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9. Fission Product Behavior in the
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een stripped is more nearly 50% of
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E > 0 12.0
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(014 5 2 4 o~~ 40" 5 2 5 - BLANK -~
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loi3 5 2 40’2 E : 5 m L al a 0) i
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126 Table 9.4, Fission Product Depo
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Table 9.7- Approximate Fission Prod
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(e.g., in metallic colloidal aggreg
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SAMPLES in. DlAM X t'46 in. ,,/NOR-
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c( 0 c c 0 134
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10.1 OXIDE CHEMISTRY OF ThF,-UF, ME
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BeF, in 2LiF 13eF,, this partial pr
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(up to one week) the transparency o
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The appearance in appreciable conce
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MoF3 e h l o .... ~~ .... Mo t MoF,
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i observed peak heights for Mo 2F9
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12.1 EXTRACT] ROTACTlNlUM FROM ever
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2 a STATIC -~ -0 AGITATED A AVERAGE
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to the end of the nickel anode. A m
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centration (97% removed). The distr
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point marked with a cross is the va
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13. FB u orate 13.1 PHASE RELATIONS
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THERMOCOUPI-F FURNACE I TO VACUUM O
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Cr Metal Hastelloy N Fe Mo ~ 162 Ta
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- 0 0.44 0.40 0.36 0.32 .- + z 0.28
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. Development and E aluation of for
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Sample No. M Wil 1 FP-9-4 FP-10-25
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LJ !+€AD POT I I I I I I I I 1 I
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This uranium species disappeared sl
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174 BI I - CARRIER - ...... -+ SAMP
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olten- I rr Molten-salt breeder rea
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I COLD LEG RETURN LIN 178 CORE OUTL
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March 17 following the fission prod
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Table 15.3. Comparison of Values fo
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likely cause of failure is the rapi
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186 Fig. 15.6. Inner Surfoce of Col
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188 Fig. 15.8. Inner Surface of Cor
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on final salt samples. 'This value
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Page 204 and 205: HFIR FUEL ELLEMENT ,EXPERIMEUT 194
Page 206 and 207: Our materials program has been conc
Page 208 and 209: 198 SPLIT STRAP SLEEVE BAND (a) S F
Page 210 and 211: others, but all three stringers in
Page 212 and 213: - Y) a - 70 60 50 40 (0 m 30 + m 20
Page 214 and 215: 204 Fig. 16.7. Photomicrographs of
Page 216: 206 Fig. 16.9. Photomicrographs of
Page 219 and 220: AXF-5QRG 4-4 4 a9g/rm3 4f 56 % ~ AX
Page 221 and 222: Carbon Corporation, Poco Graphite,
Page 223 and 224: was found. In view of the low react
Page 225 and 226: SIC TEMPERATURE STAINLESS STEEL TUB
Page 227 and 228: 18.1. IMPRQVING THE RESISTANCE are
Page 229 and 230: These aging studies will be expande
Page 231 and 232: 221 Fig. 18.3. Hastellay N Containi
Page 233 and 234: Fig. 18.5. Hasvellcy N (Titanium Mo
Page 235 and 236: ORWL-DWG 67-tIP39 !-in -THICK PLATE
Page 237 and 238: 227 Toble 18.3. Thermal Convection
Page 239 and 240: 229 ORNL-DWG 67-io980 Impurity Anal
Page 241 and 242: 231 Fig. 18.16. Hastelloy N Thermal
Page 243 and 244: time what the effective diffusiviti
Page 245 and 246: Figure 18.20 shows an area near the
Page 247 and 248: The third design, which is also a d
Page 249 and 250: Part 6. Molten-Salt Processing and
Page 251: that the behavior of the rare-earth
Page 255 and 256: 23. Steady-State Fission Product Co
Page 257 and 258: sec (50 hr). These latter residence
Page 259 and 260: analysis of filtered samples and th
Page 261 and 262: 25. Modifications to MSRE Fuel Proc
Page 263: nickel line through a sintered meta
Page 267 and 268: 1. R. K. Adams 2. G. M. Adamson 3.
Page 269 and 270: 344. E. H. Taylor 345. W. Terry 346
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