Reactivity of some halogenated alkanes of 13X molecular sieve

Journal Article · Thu Dec 01 00:00:00 EST 1977 · J. Catal.; (United States)

DOI:https://doi.org/10.1016/0021-9517(77)90051-3· OSTI ID:5641362

Fevrier, D; Vernet, J L; Mignon, P

The decomposition and transhalogenation products of trichlorofluoromethane (F 11), dichlorodifluoromethane (F-12), dichlorofluoromethane (F-21), chlorodifluoromethane (F-22), trichlorotrifluoroethane (F-113), and bromotrifluoromethane (F-13B1) in air on 13X molecular sieve at 150/sup o/ and 320/sup o/C were analyzed. All compounds decomposed to some extent except F-13B1 and F-113 at 150/sup o/C. The decomposition product was carbon dioxide except from F-21 and F-22, which decomposed more readily than the other Freons because of their hydrogen atoms and which yielded carbon monoxide. The sieves were not regenerated by sweeping with water in nitrogen, although adsorbed halogens were displaced and formed strong acids. Halogenated hydracids formed along with carbon dioxide by reaction with constitutional water of the sieves are probably responsible for the destruction of the sieve. Diagram, graphs, tables, and 17 references.

• Research Organization: Univ. of Science Tech., Lagarde, France
• OSTI ID: 5641362
• Journal Information: J. Catal.; (United States), Vol. 50:3
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CHLORINATED ALIPHATIC HYDROCARBONS
CHEMICAL REACTIONS
FLUORINATED ALIPHATIC HYDROCARBONS
MOLECULAR SIEVES
CATALYTIC EFFECTS
CATALYSIS
FREONS
ADSORBENTS
HALOGENATED ALIPHATIC HYDROCARBONS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
400301* - Organic Chemistry- Chemical & Physicochemical Properties- (-1987)