发明名称 |
PROCESS FOR MAKING 3-PENTENENITRILE BY HYDROCYANATION OF BUTADIENE |
摘要 |
<p>The invention provides a continuous process for the production of 3-pentenenitrile, comprising: (a) contacting, in a reaction zone, a hydrogen cyanide-containing feed, a 1,3-butadiene-containing feed, and a catalyst precursor composition, wherein the catalyst precursor composition comprises a zero-valent nickel and at least one multidentate phosphorus-containing ligand selected from the group consisting of a phosphite, a phosphonite, a phosphinite, a phosphine, and a mixed phosphorus-containing ligand or a combination of such members; and (b) maintaining a residence time sufficient to convert about 95% or more of the hydrogen cyanide and to produce a reaction mixture comprising 3-pentenenitrile and 2-methyl-3-butenenitrile, wherein the 2-methyl-3-butenenitrile concentration is maintained below about 15 weight percent of the total mass of the reaction mixture.</p> |
申请公布号 |
EP2044007(B1) |
申请公布日期 |
2015.11.18 |
申请号 |
EP20070812884 |
申请日期 |
2007.07.13 |
申请人 |
INVISTA TECHNOLOGIES S.À.R.L. |
发明人 |
FOO, THOMAS;KRISTJANSTDOTTIR, SIGRIDUR, S.;MC KINNEY, RONALD, J.;OZER, RON;PEARLMAN, PAUL, S. |
分类号 |
C07C253/10;C07C253/30;C07C255/07 |
主分类号 |
C07C253/10 |
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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