SEPARATION OF HIGH BOILING POINT ALDEHYDE PRODUCT AND EXTRACTION PROCESS FOR CATALYST RECOVERY

• Main Authors: SHU SHUNGEN, CHIU SHIH-FENG, WANG HSING YUN
• Format: Patent
• Language: English; Japanese
• Published: 31.08.2020
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY

To provide a process of reducing formation of a non-desired acetal compound, in an extraction process of recovering a high boiling point aldehyde product and a catalyst from a nonaqueous hydroformylation product solution.SOLUTION: A process including steps of(a) forming a two phase mixture by contacting a nonaqueous hydroformylation product solution with an aqueous extraction solvent, in which the aqueous extraction solvent includes at least one polyalcohol, at least one primary alcohol, and water, and the nonaqueous hydroformylation product solution contains the high boiling point aldehyde compound, the hydroformylation catalyst, and a nonaqueous hydroformylation solvent, and (b) obtaining an aqueous extraction solvent layer containing (i) the nonaqueous hydro formylation solvent layer containing the hydroformylation catalyst, and the nonaqueous hydroformylation solvent, and (ii) an aqueous extraction solvent layer containing the high boiling point aldehyde compound, and the aqueous extraction solvent by separating the two phase mixture of the step (a).SELECTED DRAWING: None 【課題】非水性ヒドロホルミル化生成物溶液から高沸点アルデヒド生成物及び触媒を回収する抽出プロセスであって、望ましくないアセタール化合物の形成を低減したプロセスの提供。【解決手段】（ａ）非水性ヒドロホルミル化生成物溶液を水性抽出溶媒と接触させて、二相混合物を形成する工程であって、前記水性抽出溶媒が、少なくとも１つのポリアルコールと、少なくとも１つの第一級アルコールと、水とを含み、前記非水性ヒドロホルミル化生成物溶液が、前記高沸点アルデヒド化合物と、ヒドロホルミル化触媒と、非水性ヒドロホルミル化溶媒とを含む工程と、（ｂ）工程（ａ）の前記二相混合物を分離して、（ｉ）前記ヒドロホルミル化触媒と、前記非水性ヒドロホルミル化溶媒とを含む、非水性ヒドロホルミル化溶媒層、及び（ｉｉ）前記高沸点アルデヒド化合物と、前記水性抽出溶媒とを含む、水性抽出溶媒層を得る工程とを含む、プロセス。【選択図】なし