【摘要】 以新型水溶性二磺化 - 1-苯基二苯并膦 (简称 PDBPDS)为配体 ,制备了铑膦配合物 Rh(acac) (CO ) -(PDBPDS) 3.将其负载于高吸水性载体上 ,制得负载水相催化剂 ,并对催化剂的制备条件进行了优化 .以人造沸石为载体 ,在载水量 30 % ,[Rh]=2 .0× 10 - 5、 [P]/ [Rh]=40的条件下 ,筛选出丙烯氢甲酰化反应的最佳工艺条件 .在反应温度 10 0℃、压力 2 .0 MPa、搅拌速度为 5 0 0 r/ m in条件下 ,催化剂活性达 10 12 g丁醛 / (g Rh· h) ;正异比高达 43.5 ;在有机相中铑的浓度为 1.2× 10 - 9,解决了均相反应催化剂回收和循环使用的问题 .实验结果表明 ,新型配体二磺化 - 1-苯基二苯并膦是一性能较好的新配体 ,所制备的新型负载水相催化剂是一有较好开发前景的新型催化剂更多还原

【Abstract】 Using disodium\|1\|phenyl\|dibenzophosphole\|disulfonate (PDBPDS) as ligand, a high activity P\|Rh complex, Rh(acac)\-2(CO)\-2, was synthesized. Further, a novel supported aqueous\|phase catalyst was prepared by supporting a thin film of the solution of this water\|soluble organometallic complex on a high\|surface\|area hydrophilic permutite. When H\-2O content of SAPC is 30%, =2.0×10 -5 , /=40, the activity of the novel catalyst for propylene hydroformylation reaction under the optimium reaction conditions (temperatur 100 ℃, pressure 2.0 MPa, stirring speed 500 r/min), achieved 1 012 g aldehyde/\{(g Rh·h)\} and n/i =43.5. Rhodium in organic phase is only 1.2×10 -9 . The results show that the novel ligand( PDBPDS) and catalyst (SAPC) possess high activity and selectivity; and ability to reduce the loss of rhodium in organic phase.更多还原