Hydroformylation process
AssigneeIndustrial Technology Research Institute
InventorsMao-Lin Hsueh, Hao-Hsun Yang, Kuo-Chen Shih, Tsai-Tien Su
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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.
Claims9
A hydroformylation process, comprising:
- (i) reacting a cyclic olefin with carbon monoxide and hydrogen in the presence of an aldehyde and a rhodium catalyst at a temperature of 40° C. to 160° C. to obtain a hydroformylation product liquid containing cycloalkyl aldehyde;
- (ii) cooling the hydroformylation product liquid to room temperature, and letting the hydroformylation product liquid stand until it divides into a first layer and a second layer, wherein the first layer comprises substantially the rhodium catalyst and a the second layer comprises substantially the aldehyde and the cycloalkyl aldehyde;
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- (iii) separating the first layer from the second layer.
Dependencies are inferred from the claim text.