发明名称 |
A PROCESS AND METHODS OF PURIFICATION FOR THE MANUFACTURE FLUOROCARBONS |
摘要 |
Halocarbons of the structure CF<SUB>3</SUB>CF<SUB>2</SUB>CH<SUB>2</SUB>X, wherein X is either F or Cl or mixtures thereof prepared by: contacting at least one 2- fluorochloropropane with hydrogen fluoride in a first fluorination step in the gas phase or liquid phase under substantially anhydrous conditions, in the absence of added catalyst to partially fluorinate said 2- fluorochloropropane; contacting said partially fluorinated 2- fluorochloropropane with at least the stoichiometric molar equivalent of hydrogen fluoride under substantially anhydrous conditions, in the presence of at least one fluorination catalyst in a second fluorination step; removing said reaction products from contact with said catalyst, and isolating a substantial yield of at least 1,1,1,2,2,3-hexafluoropropane or 1,1, 1, 2, 2, penta-3-chloropropane, or mixtures thereof, respectively. |
申请公布号 |
WO2008030438(A2) |
申请公布日期 |
2008.03.13 |
申请号 |
WO2007US19313 |
申请日期 |
2007.09.05 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY;NAPPA, MARIO, JOSEPH;RAO, VELLIYUR, NOTT, MALLIKARJUNA;SIEVERT, ALLEN, CAPRON;KNAPP, JEFFREY, P. |
发明人 |
NAPPA, MARIO, JOSEPH;RAO, VELLIYUR, NOTT, MALLIKARJUNA;SIEVERT, ALLEN, CAPRON;KNAPP, JEFFREY, P. |
分类号 |
C07C17/20;C07C17/383;C07C19/08;C07C19/10 |
主分类号 |
C07C17/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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