| 摘要 |
Described is a process for hydroformylation of an olefinic compound, which comprises, upon the reaction of the olefinic compound with hydrogen and carbon monoxide in order to prepare, in an industrially advantageous manner, various aldehydes each of which is useful as a starting material for fine chemicals such as pharmaceuticals and agricultural chemicals, alcohols for a plasticizer or starting materials such as diol, dicarboxylic acid, and diamine for the synthesis of a polymer compound, carrying out the reaction in the presence of: a) a rhodium compound, b) a tertiary organic phosphorus compound represented by the following formula (1): P(X1)(X2)(X3-SO3M) wherein X1 and X2 each independently represents a monovalent hydrocarbon group having 1-15 carbon atoms and X3 represents a divalent hydrocarbon group having 1-15 carbon atoms and M represents an alkali metal, and c) a polar organic compound; separating the rhodium compound, the tertiary organic phosphorus compound represented by the formula (1) and the polar organic compound from the resulting reaction mixture by extraction with water; subjecting the extracted water layer to removal of water and addition of at least one acidic substance selected from sulfonic acids to prepare a concentrate containing the rhodium compound, the tertiary organic phosphorus compound represented by the formula (1) and the polar organic compound; and recycling the resulting concentrate to a reactor for reuse. |
