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331 f'ENI?AL PF'FCLCCFC Dernis, P.R., qmith, r.D., Cates, n.1'. F. Sond, T.O., Dlasna tTet Technolow '.ASP CD-5033, "ct. 1965 Stokes, C.C., Chenical Peactinns with the plasma Jet, Chev. Cnp. PDril 17, 1965, D. 191 tlulburt, I..)!. & Freeman, K.O., Chepjcal "eactions in the Plasma tTet, Trans. V.Y. Pcad. of Sciences E 770 (1963) 5taff Feature, Plasma - Fourth State of Vatter, Ind. I'np.. Chem. 55 16 (1963') $lohn, R.R. t nade, W.L. rlecent Advances in Flectric Arc Dlasna Generator Technology APS .Taurnal Creenlee, R.L., '"he Dlasma ,'et in Chemical Processinp. Clyde hrilliams & Co., Columbus, Chi0 ("arch 1, 19631, Creenlee, R.E. & Fickley, W.H., Potential Pcplications for plasma %'et Drocessinp in the petrochemical Industry, Clyde Villiams & CO., Coiumbus, Ohio (April 30, 1963) Peed, 7 .Pa , Dlasma "orches , International ccience and Technolop, June, 1962, p. 42 ' Parynawski, C.W., Phillips, V.C., Phillips, tT.R. F, I'iester, N.K., Thermodynamic of Selected Chenical Systems Potentially Applicable to Plasma .let Synthesis, I & E.C. Fundmentals 157 (1967) I
INTRODUCI'ION 332 PRODUCl'ION OF BYDROGEN CYANIDE FROM METHANE I N A NITROGEN PLASMA JET I. Reactive Species Titration; -her Q,uantitative Studies Hark P. Freeman Central Research Division, American Cyanad Co., Stamford, Cmnecticut The reaction of nthane vith a nitrogen plasma to make hydrogen cyanide and acet- ylene is of considerable interest. Conversions are high enough t o be of commercial interest on the one hand,(l,2) vhile the formation of H a in particular proceeds in (1) (2) E. M. Hulburt and M. P. Freeman, Trans. N.Y. Acad. Sci., 2, No. 25, 770 (1963). E. W. Leutner, Ind. Ehg. Chem. Process Design Develop., 2: 315 (1963). such an interesting and reproducible way that clarification of the details of the reaction should considerably advance the use of the plesma jet in 8ynthOtiC chew istry, and further might be expected to contribute rlgniflcantly to baaic chendcal knowledge. The forrmlly identical synthesis of BCB from "active Ditrogon" aad methane has been extensively studied(~5) for 'mre than a half century. %at the mysteam are (3) K. R. Jenninge and J. Y. Llnnett, Quart. Rev. (London) l2, 116 (1958). (4) G. G. Manella, Chem. Rev. 63, 1 (1963). (5) 1. E. V. Ewms, C. R. Freeman, and C. A. Winkler, Can. J. Chem. 2, 1271 (1956). different is apparent, for the high-voltage discharge Is Z high excitation &rice, whereas the plasma jet is thought to be nearly in local therml equillbrlum .nd hence a l w excitation device (spectroscopically speaking interredlate betveen 'arc and spark.(6)) Furthermore, the plasaa jet experiments an perforad at one-half at- (6) F. A. Kovoler and Yu. K. Kvaratskheli, Opt. Spectr., (IkSR) (Eugllgh Trml.), - io, 200 (1961). I
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)i 1 reesonably complete and accura
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3 inquire about the component of ve
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4 I I 5 To find (t2)av, we assume t
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\ vnich, it is noted can be negativ
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I 7 than or smaller than the second
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i I i I I I ) ) i L , I I . INT1:OD
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13 field per electron is and per co
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. 11. 5. CharRe-Transfer and Ion-Mo
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17 In the followin:: sections much
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above. With that EIN, an estimate o
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21 region in w!iich large, nighlv l
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i ’ understanding: 23 (a) Electro
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Obviously, the secondary ion must h
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27 (22) Franklin, J. L., Munson, M.
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Tables 1-6 present examples of rela
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Table 8 Some Ions Formed by Process
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33 velocity of the reacting partn r
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35 must be added to the Langevin cr
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37 In our laboratory a microwave di
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+ . 4 . r 39 as well as N in a cor0
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ION-MOIECULE REACTION RATES MEASUFI
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43 excitntion 2onditions so that th
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45 In 2 like manner Fig. 3, showing
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47 Absorption Spectra of Transient
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50 maximum fiela. In this manner, a
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52 3 % %- %- 5- a- 7 h W P H 0 L v)
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References I I . A.B.Callear, J.A.G
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._ . _-.. - , , . . ,. . The Pyrex
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58 0 0 0 VI J > I cv . u H a
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.... . 0 2 e I / m 0 H F4 : 1
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\ 0.9 0.8 0.7 06 0.5 0.4 0.3 0.2 01
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65 ' cause of the reduction in the
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INTRODUCTION I' Attachment of polar
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I 69 EXPERIMENTAL The mass spectrom
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+ Figure 1 Mixed water and methanol
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73 ' , radius might be expected bec
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75 Negative Ion Mass Spectra of Som
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A b 1 1 I H I I I FILAMEN T CONTINU
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79 for positive and negative ions,
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51 out to answer some of the questi
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93 INTERACTIONS OF EXCITED SPECIES
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L 4 I*C z 0'2 = a, a U x I m 4 m 0
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I L I, ; > > E Fig. 3 I50 200 150 1
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I 300 r 1 - 200 i io ;' a cn I I. 0
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where DISCUSSION OF XESULTS PERTAIN
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93 where the bar indicates values c
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'I i 'I 0 2. 4 6 8 2 [ N]* x' I 0-2
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Fig. 14 IO 8 6 4F [NO] x IO-" (mole
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for chemiluminescent excitation in
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101 Chemiluminescent Reactions of E
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103 All gases were taken directly f
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10; He: + N2 -. 2He + h': (8) whi!?
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description for both diffusion and
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B. Ions and Electrons I Consider a
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' 112 axial diffusion through the d
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the tube walls occurs continuously
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E2R M ' $6"
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1. 2. 3. 4. 5. 6. 7. 8. 9- 10. u. -
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120 . Dlschorge zone Reactor zone 1
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122 In radiation chemistry the cust
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124 4. chemistry seem limited essen
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126 Conversion of Mixtures into Mor
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Hydrazine Synthesis in A Silent dle
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{;I . - . .. . - .., . . .. _- .. .
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1 \ \ \ , \ , \ \ Pmer hnrity K.W.
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. I operating fact that the sloGe i
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_- of ' . 8. - 7 6, Residence Time
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135 Ionic Reactions in Corona Disch
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GAS OUT GAS IN i.ho QUADRUPOLE MASS
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- + ( ~ ~ + 0 H ) ~ O ~ ( H~o)~H+ +
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144 i I , , , , . + 1- u 3c w Inu c
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146 SYNTHESIS OF ORGANIC COIGhTDS B
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mi5 a- dz CI n I a I n +4 - 0 -I- k
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0 z cu I I I
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I- I - t d m a .rl Y x c, t-' d k
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, 155 This result is significant in
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Compound Bond he rgy Li I 82 UBr 10
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, ”..’ 3or 25 - 5 20 - s 3 w Y
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I 161 THE GLOW DISCHARGE DEPOSITION
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Fig. 1 Process Apparatus -__l.ll__
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v) t- at- InIo Io0 t-Q) loo lcua O
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This study is only an approximation
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Mole Reaction Material ratio time e
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\ i (4) Effect of System Pressure T
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173 Pressure. Since pressure is a c
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175 Table VI X-RAY DATA OF DEPOSIT
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177 Another source of weakness is t
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179 PLATING IN A CORONA DISCHARGE R
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\ 3 , ,\ 110 v 60 CPS MANOMETER . F
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I i , \ I i & a - P Fig. 3 Reaction
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\ \' C 0 .d * d .- C U d 0) c( 1) L
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I i I . Q) I, s w 0 v) Y 0 a w W a
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I (b) Polarized Light Fig. 6 Cross
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i m v) Y C i! u o) 23 a a- + 191 m
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i, d C .d c c W Q ) 0 0 L1Y 0 000 0
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i e 4 0 wcr -4 4 al 0 0 0 c) cr 13:
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\ E ‘ 1 TIME FOR RUN 13-1 14-1 -
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199 a red heat in this cell using d
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\ , t j \ I, v) 2 Y . C 0 u m .I C
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203 VAPOR PHASE FORMATION OF NONCRY
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BELL JAR STANC TO VACUUM SYSTEM U T
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207 of the boron oxide film, the fi
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i I, 4 I.( Y I- * 0 i f i 3 0.t I I
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211 The Reacticn 3f Oxygen with Car
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2 E, W t- a Z 9 I- a 2 X 0 I50 too
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'i' 100 50 IC 21 5 2.0 2.5 SURFACE
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I- z W 0 w a a 100 80 60 40 20 215
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s., Literature Cited Berkley, C. ,
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7 h \ F 221 600°C and 1 atmosphere
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223 e I'
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R L ' -1 9mm O.D. 5mm I.D. 45mm 0.D
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Figure 5.- Paschen's law curves. 2-
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\ '? I The water-free product gases
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N I + 0" ON i I + 0 u / 0 0 I 0 cu
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- 233 SOME PROBLEMS OF THE KINETICS
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.. . :. ,. .I , . i ? .. . , ... .
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237 Table 2 Experimental Variables
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239 Zhbie I Eerccnt Consumption of
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241 Discussion The systematic varia
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I \ 1 243 FORMATION OF HYDROCARBONS
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h z - a o m a 20 T IME, minutes . F
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I 1 I I I I 0 I 2 3 4 5 TIME, minut
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The next five coluws in table 1 sho
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\ .\ t 251 Given the existence of t
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I L 253 Epple, R. P. and C. M. Apt.
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1 ' Fig. 1 Schematic of flow discha
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5' . ' I 1 257 co, with excess H2,
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1 1 1 moo 1400 1300 c V' I IPOO I I
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i 25i The Dlssocfatior of ToIuere V
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L ! , c PRODUCTS FROM A 28 MC. DISC
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'\ J ?. , .. . : PRODUCT FORMATION
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'9 / I '\ "1 BENZYL CATION AND RADI
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a
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271 tube serve? as the high voltare
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273 ion (1L.). Zxcitei-ion by colli
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Apparatus and Procedure 275 EXPERIM
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. 277 6. A freshly prepared sam le
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observed. The polystyrene (10% solu
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i i (12) c (11) (14) I 281 LITERATU
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FLOW- METER I ADDITIVE SUPPLY * ,28
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285 TABLE 2 Effect of Haloqenated A
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ANALYTICAL RESULTS Some evidence wa
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DISCUSSION 289 The salient features
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? ~ MENBERSHIP IN THE DIVISION OF F
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292 flow of the reactant gas stream
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294 have suitable residence times i
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0 E < h( E l! d K c 0 .- Y 0 t u t
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298 yields of many chemical product
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- ;i Y . 15. Pressure lOmm 5 > 10-
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302 the best and in many practical
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GENERATION AND MEASUREMENT OF AUDIO
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. The transformer secondary and the
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Vaccum-Tube Amplifier The mobile co
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310 f = Power supply frequency in c
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FUFARCI! INSTITUTE OF TFYDLC UNIVER
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J # I / 4) I . . '8 r4 0 r( P
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317 i Cuencb svsten w.nnar;itus use
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epcrte? the noss~kil.itv of nroduct
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1' b t +
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323 ....... - . . . . . . . . . . .
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1 \ i I i , / / / 8 3 1 325 To205 +
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- .- - - . - - . . . - . 327 n + c
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' POWER PLASMA GAS l e , ' I ! I I
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i J 333 ; mosphere (as opposed to a
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; it raised the question, still &?z
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p .I V I .= - - HCN/C(CALC. WITH C
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1 1 339 atmospheric ressure and ach
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RESULTS 341 Composition Dependence
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0.09 0.08 0.07 9 0.06 2 U - .$ 0.05
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II \ to the Slot So that less of th
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i 4 2 HYDROCARBON-NITROGEN REACTION
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I 1 349 c M m ; a e, k M x
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1.0 I - a. I n TEMPERATURE - OK Fig
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353 the experimental results in the
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,) 355 The ceaswed conversion cf ni
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1 6 357 Freezing. 3jpotnesise thzf
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359 \ Frozen Compositior: Calcillat
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I 1 \ 361 -. ne reaction proceecis
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\ 36 3 ' h, I 26. H. Purnell, Gas C
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In experiments on the direct conver
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367 used as blnders, with different
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369 ' i 1. REFERENCES Berber, John
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Distribution and yield rates of pro
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. . I . I 370 . . . . ., . . .. . .
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4 372 090- > E w - m c N O - 0 z :
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A-Feed tank 6-Thermocracker GReceiv
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80 \ 0 70 60 e 40 a U VI 9 30 20 10
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COAL DEASH& AND HIGH-PURITY COKE Wa
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3Pn _. -. - L -J:,J.-;~~~L, ):as se
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S ~ l ~ o n~pg:ading r is the resul
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The range ~f temperatures and gener
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. .. 386 9 * - r. Y 2 .' d a f' r.
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.) .L m 388 I
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TABLE 4 390 DELAYED COKING OF DEASH
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, ! I- on '---
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394 The present method is to keep t
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396 ‘c erperature, while the pres
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2, '! ! Proximate Analysis, wt $ Mo
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0 IS 0 14 LL 9 013 e \ 3 b- m *- 01
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402 HYDROGEN CYANIDE PRODUCED FROM
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404 Before startup, the system is p
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4 OL. ' , I. . TesCs. With.Coals .o
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Table 3.- Product Gas Analyses and
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410 BIBLIOGRAPHY 1. American Public
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Figure 2. Enclosure surrounding hyd
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0 0 f v) C 0 u m I z 2 c 2 r d J w
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0. E c .4 7 .. .c . I ( - Low tempe
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418 cual. A mjor aa\;antage or' the
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420 Ir ?Y ? ? 9 9 9 pc rod n o c o
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422 Table 3. Room-texperature M'dss
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424 state, depending on the strengt
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Table 4. Room-?;ergerature isomer s
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I' 1.3 . /o 9 IO 9 6 a 425 F F 33 I
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Brooks J.D. and Sternhell S. (1957)
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(52) Gib3 T.C. and Greenwood N.N. (
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434 transducer vas then introduced
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436 yield is quite similar. The con
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?-!??? 0 mv, Uh\OhIe . . . . eirlrl
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4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 4
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442 CHEMICAL REACTIONS IN A CORONA
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helium 444 CORONA REACTOR SYSTEM Fi
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446 The ultraviolet spectrum. for t
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Biphenyl Fraction 448 The low molec
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LUd The actual structural definitio
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I I I I I In m 9 In 2 , I: r- In m
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’. 454 Mechanism I The available
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456 , , . The relatively low yield
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458 h/lethylacetylene, allene and b
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Introduction VAPOR PHASE DECOMPOSIT
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462 more efficient hydrogenation. T
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464 place in parallel with fragment
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466 P rl 0, k 7 rnI rn al k a I hl
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458 TABLE I. COMPOSI'IION OF GASEOU
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REFERENCES 1. C. Hirayama and D. A.
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i 472 Reciprocal Arc Enthalpy ,-> F
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474 be pumped down without altering
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476 Instead a hydrogen deficient fi
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i 478
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480 FATTY ACIDS AND n-ALKANES IN GR
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482 TA5L,E 2. - Carbon number distr
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6. 7. a. 9. 484 Lawlor, D. L., and
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' I ' Sample No. 6 ' 12 IO 8 6 z 4
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. 488 uiolecular weight of which ca
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Xississippi (Sample GS). Stock solu
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492 found at 5.7 and 4.9& for the W
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494 mechanisms. However, the voltad
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For pure polynuclcar arom.i;ic hydr
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- '-'. . ' . . values are listed in
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500 (1;) Ten, T. 17.: a;1d,Dic;
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- ~ Resistivity Czlculation 2: 1 j:
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504 o ' C 0s 2 0 v x i 8 2 0 ! P -
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506 i
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d 601 L P LL
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I I I I I I I I m W N W N 0 (D ? 0
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514 was heated under nitrogen in a
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The line broadening at 79OK of the
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13. 14. 15. 16. 17. 18. 19. 20. 21.
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W L, Z 6 m (1: 0 6 d j o 2 ' 1 0.0
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Coals 522 Studies of the 1600 cm-l
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L in ole i c a c id - 0' Two sample
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526 Table 1.- Ultimate analyses of
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528 6. Friedel, R. A., and H. Retco
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egeneration. The system can be seen
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532 and can be expressed in terms o
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534 in the vapor increases with inc
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NH3 NH3 NH3 NH3 Pyridine Pyridine P
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Mole Ratio of Test No. Quinoline to
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IXPROFJCTION D; M. Mason Institute
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-4:c~rciiny to recent studies o ;i4
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544 Table 1. LIGHT EMISSION OF Y"TR
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emission in a few cases may be by d
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LITERATUR2 CITED i. C. -. .' * il.
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co, CH,,OR 1 - OTHER ADDITIVE FRITT
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FRIT 'TED CO, CH,.OR 4 ___ OTHER AD
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340 350 300 400 4 50 500 600 700 80
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0 554 WITH COOLING (PLATE AT 40°C)
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5 56 then t = to when e = 0 2) the
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5 58 The surface heat transfer coef
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Discussion and Results 560 Three br
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__- ._ 562 Table I THERMAL AND PHYS
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ln 4 I 0 4J v \ 1.0 0.8 0.6 L - 0.4
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