发明名称 |
Process for the manfuacture of linear hydrofluorocarbons containing end group hydrogen substituents and azeotropes thereof |
摘要 |
Linear hydrofluorocarbons of the formula XCF2(CF2)nCH2F where X is H or F, and n is 1 to 7 when X is H and 0 to 7 when X is F, are produced by a vapor phase catalytic reaction of HF with corresponding compounds of the formula XCF2(CF2)nCH2OY where Y is -(CO)Cl or -SO2Cl. Azeotropic compositions with HF (e.g., an azeotrope of CHF2CF2CH2F and HF) are provided, and a portion of the linear hydrofluorocarbon product (e.g., a portion of the CHF2CF2CH2F) may be recovered as an azeotropic composition and recycled. |
申请公布号 |
AU6951494(A) |
申请公布日期 |
1994.12.20 |
申请号 |
AU19940069514 |
申请日期 |
1994.05.20 |
申请人 |
E.I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
MARIO JOSEPH NAPPA;VELLIYUR NOTT MALLIKARJUNA RAO;ALLEN CAPRON SIEVERT |
分类号 |
C07C17/093;C07C19/08;C07C29/32;C07C49/08;C07C51/58;C07C303/24;C07C305/26 |
主分类号 |
C07C17/093 |
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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