Citation: Zhen MA, Wei Ming HUA, Yi TANG, Zi GAO. A Novel CFC-12 Hydrolysis Catalyst:WO₃/SnO₂[J]. Chinese Chemical Letters, ;2000, 11(1): 87-88. shu

A Novel CFC-12 Hydrolysis Catalyst:WO₃/SnO₂

Department of Chemistry, Fudan University, Shanghai 200433

Received Date: 26 July 1999

The catalytic hydrolysis of dichlorodifluoromethane (CFC-12) was investigated over WO₃/SnO₂ solid acid which was prepared by impregnating Sn(OH)₄ with aqueous ammonium metatungstate followed by evaporating, drying and calcining in air. The CFC-12 conversion over WO₃/SnO₂ at 330℃ remained above 99.5% during 150 h on stream, however, parent metal oxides showed rare catalytic decomposition activity.
- Environmental catalysis,
- Freon decomposition,
- WO₃/SnO₂ catalyst
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