Novel catalysts for isotopic exchange between hydrogen and liquid water

Journal Article · Sun Jan 01 04:00:00 EST 1978 · ACS Symp. Ser.; (United States)

DOI:https://doi.org/10.1021/bk-1978-0068.ch007· OSTI ID:6300000

Butler, J P; Rolston, J H; Stevens, W H

Catalytic isotopic exchange between hydrogen and liquid water offers many inherent potential advantages for the separation of hydrogen isotopes which is of great importance in the Canadian nuclear program. Active catalysts for isotopic exchange between hydrogen and water vapour have long been available, but these catalysts are essentially inactive in the presence of liquid water. New water repellent platinum catalysts have been prepared by: 1) treating supported catalysts with silicone, 2) depositing platinum on inherently hydrophobic polymeric supports, and 3) treating platinized carbon with Teflon and bonding to a carrier. The activity of these catalysts for isotopic exchange between counter-current streams of liquid water and hydrogen saturated with water vapour has been measured in a packed trickle bed integral reactor. The performance of these hydrophobic catalysts is compared with nonwetproofed catalysts. The mechanism of the overall exchange reaction is briefly discussed. 6 figures, 1 table.

• Research Organization: Chalk River Nuclear Lab., Ontario
• OSTI ID: 6300000
• Journal Information: ACS Symp. Ser.; (United States), Journal Name: ACS Symp. Ser.; (United States) Vol. 68; ISSN ACSMC
• Country of Publication: United States
• Language: English

Related Subjects

07 ISOTOPE AND RADIATION SOURCES
070101* -- Heavy Water Production
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400203 -- Isotope Exchange & Isotope Separation-- (-1987)
ADSORBENTS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CANADA
CATALYST SUPPORTS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHARCOAL
CHEMICAL PREPARATION
CHEMICAL REACTION KINETICS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
COMPARATIVE EVALUATIONS
DEUTERIDES
DEUTERIUM
DEUTERIUM COMPOUNDS
ELEMENTS
FLUORINATED ALIPHATIC HYDROCARBONS
HALOGENATED ALIPHATIC HYDROCARBONS
HEAVY WATER
HIGH TEMPERATURE
HYDROGEN
HYDROGEN COMPOUNDS
HYDROGEN DEUTERIDE
HYDROGEN ISOTOPES
ISOTOPES
ISOTOPIC EXCHANGE
KINETICS
LIGHT NUCLEI
MATERIALS
MEDIUM TEMPERATURE
METALS
NONMETALS
NORTH AMERICA
NUCLEI
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC POLYMERS
OXIDES
OXYGEN COMPOUNDS
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
PLATINUM
PLATINUM METALS
POLYETHYLENES
POLYMERS
POLYOLEFINS
POLYTETRAFLUOROETHYLENE
PRODUCTION
REACTION KINETICS
REACTORS
STABLE ISOTOPES
SYNTHESIS
SYNTHETIC MATERIALS
TEFLON
TRANSITION ELEMENTS
WATER
WATERPROOFING
YIELDS