Synthesis of water and molecular oxygen highly enriched in 17O and 18O isotopes from carbon oxides

The reaction of carbon oxides and hydrogen in the presence of the Raney nickel catalyst has been used for water synthesis. A procedure has been developed for the recovery and collection of the synthesized water with minimal losses and without deteriorating the 17 O or 18 O isotope enrichment as comp...

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Bibliographic Details
Published inRussian journal of inorganic chemistry Vol. 56; no. 3; pp. 335 - 337
Main Authors Artyukhov, A. A., Kravets, Ya. M., Babichev, A. P., Ryzhkov, A. V.
Format Journal Article
LanguageEnglish
Published Dordrecht SP MAIK Nauka/Interperiodica 01.03.2011
Subjects
Chemistry
Chemistry and Materials Science
Inorganic Chemistry
Synthesis and Properties of Inorganic Compounds
Enrich Oxygen
Raney Nickel
Hydrogen Fluoride
Nickel Catalyst
Final Reaction Product
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Summary:The reaction of carbon oxides and hydrogen in the presence of the Raney nickel catalyst has been used for water synthesis. A procedure has been developed for the recovery and collection of the synthesized water with minimal losses and without deteriorating the 17 O or 18 O isotope enrichment as compared to the initial CO 2 and CO. The recovery of oxygen with high concentrations of 17 O and 18 O isotopes is based on the reaction of xenon difluoride with water. The yield based on oxygen achieves 99% without reduction of isotope enrichment, which is confirmed by mass-spectral measurements of oxygen isotope concentrations in the initial reagents and final reaction products.
ISSN:0036-0236
1531-8613
DOI:10.1134/S0036023611030053