FIELD: production of monomers. SUBSTANCE: method of producing tetrafluoroethylene and removing the latter from by-product fractions formed in processing of difluorochoromethane pyrolysis gases includes contacting of mixed gas with hydrogen on P/Al2O3 catalyst at 80-200 C, volume rate 50-1000 h-1, tetrafluoroethylene to hydrogen mole ratio 0.9-1.2. Contacting product is further condensed. EFFECT: improved parameters of process. 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF REMOVING TETRAFLUOROETHYLENE FROM GAS MIXTURE | 1996 |
|
RU2157723C2 |
| METHOD OF 1,1-DIFLUOROETHANE REFINING | 1995 |
|
RU2098399C1 |
| METHOD OF SYNTHESIS OF 1,1,2,2-TETRAFLUOROETHANE | 1995 |
|
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| METHOD OF PRODUCING OCTAFLUOROCYCLOBUTANE | 1995 |
|
RU2076858C1 |
| PROCESS FOR INTEGRATED PRODUCTION OF FLUOROCARBONS | 2001 |
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RU2188814C1 |
| METHOD FOR COMPLEX ISOLATION OF DIFLUOROCHLOROMETHANE AND HEXAFLUOROPROPYLENE | 2002 |
|
RU2211209C1 |
| TETRAFLUOROETHYLENE PRODUCTION PROCESS | 1997 |
|
RU2136652C1 |
| OCTAFLUOROCYCLOBUTANE AND HEXAFLUOROPROPYLENE PRODUCTION PROCESS | 2001 |
|
RU2186052C1 |
| METHOD OF TETRAFLUOROETHYLENE SYNTHESIS | 1992 |
|
RU2041195C1 |
| METHOD FOR PREPARING TETRAFLUOROETHYLENE | 2002 |
|
RU2231519C1 |
Authors
Dates
1997-08-10—Published
1994-03-30—Filed