PRODUCTION METHOD OF ALDEHYDES

摘要

In the prodn. of aldehydes by reacting olefins with CO and H2 in the liquid phase in the presence of water and water-soluble Rh-phosphine complex cpds. (I) at 20-150 deg.C and 1-200 bar (100- 20 x 10 power 3 kPa), (I) contg. trisulphonated or tricarboxylated triarylphosphones (II) are used as catalyst and the reaction medium contains a solvent promoter (III). Pref. (II) is of the formula P(Ar1(X1M)(Y1n1))(Ar2(X2M)(Y2n2)) (Ar3(X3M)(Y3n3))(IIA): Ar1, Ar2 and Ar3 = phenyl or naphthyl gps.; esp. phenyl; Y1, Y2 and Y3 = linear or branched 1-4C alkyl, alkoxy, halogen, OH, CN, NO2 or R1R2N- gps.; R1 and R2 = linear or branched 1-4C alkyl; X1, X2 and X3 = a carboxylate (COO-) and/or sulphonate (SO3-) gp.; esp. a sulphonate gp.; n1, n2 and n3 independently = 0-5; M = an alkali alkaline metal, Zn, NH4 or quat. ammonium of the formula N(R3R4R5R6)+; R3, R4, R5 and R6 = linear or branched 1-4C alkyl.