The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 23, 2010
Filed:
Mar. 23, 2009
Mao-lin Hsueh, Pingtung County, TW;
Hao-hsun Yang, Tainan, TW;
Kuo-chen Shih, Kaohsiung, TW;
Tsai-tien Su, Hsinchu, TW;
Mao-Lin Hsueh, Pingtung County, TW;
Hao-Hsun Yang, Tainan, TW;
Kuo-Chen Shih, Kaohsiung, TW;
Tsai-Tien Su, Hsinchu, TW;
Industrial Technology Research Institute, Hsinchu County, TW;
Abstract
The disclosed is about a hydroformylation of a cyclic olefin with rhodium catalyst, and specifically about the recovering of the rhodium catalyst. Aldehyde and the cyclic olefin are added into a rhodium catalyst solution to process a hydroformylation, thereby forming the product cycloalkyl aldehyde. Afterwards, the result is divided into two layers. The upper layer is substantially rhodium catalyst solution, and the lower layer is substantially cycloalkyl aldehyde and the aldehyde. After separation, the upper layer is reserved to process next hydroformylation reaction with newly added cyclic olefin.