发明名称 |
Tetrafluoropropene production processes |
摘要 |
A process is disclosed for the manufacture of CF3CF═CH2 and CF3CH═CHF. The process involves dehydrofluorinating CF3CHFCH2F in the presence of a dehydrofluorination catalyst to produce a product mixture comprising CF3CF═CH2 and CF3CH═CHF, and recovering said CF3CF═CH2 and CF3CH═CHF from the product mixture. The present invention also provides a composition comprising (a) the Z-isomer of CF3CH═CHF and (b) HF; wherein the HF is present in an effective amount to form an azeotropic combination with the Z—CF3CH═CHF.
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申请公布号 |
US7722781(B2) |
申请公布日期 |
2010.05.25 |
申请号 |
US20070301070 |
申请日期 |
2007.06.22 |
申请人 |
E.I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
RAO VELLIYUR NOTT MALLIKARJUNA;NAPPA MARIO JOSEPH;SIEVERT ALLEN CAPRON |
分类号 |
C09K5/04;C07C17/25 |
主分类号 |
C09K5/04 |
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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