Title:
テトラフルオロエチレンの製造法
Document Type and Number:
Japanese Patent JP4094055
Kind Code:
B2
Abstract:
Tetrafluoroethylene is obtained by subjecting metal fluoride, such as sodium fluoride, calcium fluoride or silicon fluoride, to a plasma to form a gaseous mixture of metal and reactive fluorine. This gaseous mixture is then reacted with a bed of carbon particles at a temperature at which the metal, when non-carbonaceous, does not condense. The resultant reaction mixture is then quenched to obtain the tetrafluoroethylene. Typically, the plasma will be at a temperature of at least 4500 DEG C and the temperature of the carbon bed will be in the range of 2000 DEG C to 3500 DEG C.
Inventors:
Webster, The Ames Lang
Application Number:
JP52966996A
Publication Date:
June 04, 2008
Filing Date:
March 29, 1996
Export Citation:
Assignee:
E. I. Dupont Do Nemour & Company
International Classes:
C07C17/007; C07C27/12; B01J8/02; B01J19/08; C07C21/185; C07C29/50; C07C31/135; C07C35/08; C07C45/33; C07C49/403; C07C49/603
Domestic Patent References:
| JP1158095A | ||||
| JP3004933A | ||||
| JP2262531A | ||||
| JP7238041A | ||||
| JP11502852A |
Foreign References:
| US2709191 | ||||
| US2709192 |
Attorney, Agent or Firm:
Heikichi Odashima
Fukaura Hideo
Fukaura Hideo