scholarly journals Evaluation of the isotope separation rate of deuterium exchange reaction between H2 and H2O with platinum catalyst.

1983 ◽  
Vol 16 (6) ◽  
pp. 495-502 ◽  
Author(s):  
ASASHI KITAMOTO ◽  
YOICHI TAKASHIMA ◽  
MASAMI SHIMIZU
Keyword(s):  
Exchange Reaction ◽  
Platinum Catalyst ◽  
Isotope Separation ◽  
Deuterium Exchange ◽  
Separation Rate

Hydrogen isotope exchange between D2 and H2O catalyzed by platinum plate

1989 ◽  
Vol 67 (5) ◽  
pp. 857-861 ◽  
Author(s):  
Shin-Ichi Miyamoto ◽  
Tetsuo Sakka ◽  
Matae Iwasaki
Keyword(s):  
Kinetic Model ◽  
Exchange Reaction ◽  
Hydrogen Isotope ◽  
Isotope Exchange ◽  
Reaction Rate ◽  
Hydrogen Adsorption ◽  
Platinum Catalyst ◽  
Isotope Exchange Reaction ◽  
Hydrogen Isotope Exchange ◽  
Supported Platinum

The reaction rate of hydrogen isotope exchange between D2 and H2O catalyzed by platinum plate is studied. The exchange reaction is described with the kinetic model which is the modification of that for the exchange reaction catalyzed by alumina-supported platinum catalyst. For the comparison of experimental results with this model relative amount of the number of sites for hydrogen adsorption was estimated from the initial rate of hydrogen isotope exchange between H2 and D2 on the same surface. The results show that the kinetic model is applicable for the plate catalyst if the number of the sites for hydrogen absorption, which is very sensitive to the surface state of the catalyst, was estimated not from the macroscopic surface area but from our scheme. Keywords: hydrogen isotope exchange reaction, platinum plate as catalyst.

scholarly journals A Fundamental Study on Uranium Isotope Separation Using U(IV)—U(VI) Electron Exchange Reaction

1983 ◽  
Vol 38 (10) ◽  
pp. 1072-1077
Author(s):  
Junji Fukuda ◽  
Yasuhiko Fujii ◽  
Makoto Okamoto
Keyword(s):  
Exchange Reaction ◽  
Isotope Separation ◽  
Analytical Data ◽  
Uranium Isotope ◽  
Electron Exchange ◽  
Separation Coefficient ◽  
Resin Column ◽  
Fundamental Study ◽  
Isotope Exchange Reaction ◽  
Different Temperatures

Abstract Displacement chromatography of electron-exchange reaction between U(IV) and U(VI) has been accomplished in an anion exchange resin column using Ti(III) ion as a reductant and Fe(III) ion as an oxidant. The details of the so-called redox-process for uranium isotope separation are described. The temperature dependencies of the elementary separation coefficient and the equilibrium constant of the isotope exchange reaction are discussed using the analytical data obtained by a series of separation experiments at different temperatures.

Deuterium-exchange reaction on trimethylamine-borane with sulfonate cation exchanger in the deuterio form

1994 ◽  
Vol 98 (2) ◽  
pp. 718-724 ◽  
Author(s):  
D. Muraviev ◽  
I. Rogachev ◽  
L. Bromberg ◽  
A. Warshawsky
Keyword(s):  
Exchange Reaction ◽  
Cation Exchanger ◽  
Deuterium Exchange
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