发明名称 |
Calixarene bisphosphite ligand for use in hydroformylation processes |
摘要 |
A calixarene bisphosphite composition for use as a ligand in a transition metal-ligand complex catalyst and in a complex catalyst precursor. The ligand is especially useful in catalysts and catalyst precursors for hydroformylation processes wherein a raffinate stream comprising a mixture of alpha, beta, and iso-olefinic isomers is hydroformylated in the presence of carbon monoxide, hydrogen, and the transition metal-ligand complex catalyst to form a mixture of linear and branched aldehyde products. The complex catalyst selectively converts the alpha and beta olefin reactants more rapidly than the iso-olefin reactant resulting in an improved molar ratio of normal (linear) to branched aldehyde products. The unconverted iso-olefinic isomer is thereafter readily separated from the aldehyde product mixture. |
申请公布号 |
US7906688(B2) |
申请公布日期 |
2011.03.15 |
申请号 |
US20080593296 |
申请日期 |
2008.04.03 |
申请人 |
DOW GLOBAL TECHNOLOGIES INC. |
发明人 |
BRAMMER MICHAEL A.;PENG WEI-JUN;MAHER JOHN M. |
分类号 |
C07C45/50;B01J31/00;C07F9/02 |
主分类号 |
C07C45/50 |
代理机构 |
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代理人 |
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地址 |
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