Thermoregulated phase-separable Ru-3(CO)(12)/PETPP (PETPP=P[p-C6H4O (CH2CH2O)(n) H](3), n=6) complex catalyst was first applied in the hydrogenation of styrene. Under the conditions: P(H-2)=2.0MPa, T=90degreesC, styre...Thermoregulated phase-separable Ru-3(CO)(12)/PETPP (PETPP=P[p-C6H4O (CH2CH2O)(n) H](3), n=6) complex catalyst was first applied in the hydrogenation of styrene. Under the conditions: P(H-2)=2.0MPa, T=90degreesC, styrene could be completely transferred and the yield of ethylbenzene reached up to 99.5%. After simple decantation, the catalyst could be reused for ten times without decreasing in activity.展开更多
Effects on the recycling efficiency of thermoregulated phase-separable Rh/PETPP (P-[p-C6H4O(CH2CH2O)nH]3, N=3n) complex catalyst involved in hydroformylation of 1-decene are for the first time presented. It was found...Effects on the recycling efficiency of thermoregulated phase-separable Rh/PETPP (P-[p-C6H4O(CH2CH2O)nH]3, N=3n) complex catalyst involved in hydroformylation of 1-decene are for the first time presented. It was found that the loss of Rh is dependent greatly on the composition of phosphine ligand PETPP and the organic solvent employed in the reaction.展开更多
Nonionic water soluble complex Ru 3(CO) 9(PETPP) 3 with the function of thermoregulated phase transfer catalysis was prepared. The catalytic activity and the recycle effect of Ru 3(CO) 9(PETPP) 3 for hydrogenation of ...Nonionic water soluble complex Ru 3(CO) 9(PETPP) 3 with the function of thermoregulated phase transfer catalysis was prepared. The catalytic activity and the recycle effect of Ru 3(CO) 9(PETPP) 3 for hydrogenation of styrene in aqueous/organic biphase catalysis system were studied. In addition, effects of reaction temperature, hydrogen pressure and reaction time were also investigated. The results showed that the reaction takes place mainly in organic phase at higher temperature (80 ℃). Under the conditions of θ =80 ℃, p (H 2)=2 MPa and t =3 h, both the PhCH∶CH 2 conversion and PhC 2H 5 selectivity are 100%. The PhCH∶CH 2 conversion is still 98 2% after reuse of the catalyst for 20 times. The catalytic performance of Ru 3(CO) 9(TPPTS) 3, Ru 3(CO) 9(PETPP) 3, Ru 3(CO) 9(TPPMS) 3 and Ru 3(CO) 9(TPP) 3 for biphase hydrogenation of styrene was compared. The experimental results for Ru 3(CO) 9(PETPP) 3 verified that there is a thermoregulated phase transfer catalysis process in the reaction system.展开更多
基金We are grateful for the financial support from the National Natural Science Foundation of China(Grant no.29906001).
文摘Thermoregulated phase-separable Ru-3(CO)(12)/PETPP (PETPP=P[p-C6H4O (CH2CH2O)(n) H](3), n=6) complex catalyst was first applied in the hydrogenation of styrene. Under the conditions: P(H-2)=2.0MPa, T=90degreesC, styrene could be completely transferred and the yield of ethylbenzene reached up to 99.5%. After simple decantation, the catalyst could be reused for ten times without decreasing in activity.
基金The financial support of the National Natural Science Foundation of China (grant no. 29906001) and the Research Institute of Petroleum Processing China Petroleum & Chemical Corporation is gratefully acknowledged.
文摘Effects on the recycling efficiency of thermoregulated phase-separable Rh/PETPP (P-[p-C6H4O(CH2CH2O)nH]3, N=3n) complex catalyst involved in hydroformylation of 1-decene are for the first time presented. It was found that the loss of Rh is dependent greatly on the composition of phosphine ligand PETPP and the organic solvent employed in the reaction.
文摘Nonionic water soluble complex Ru 3(CO) 9(PETPP) 3 with the function of thermoregulated phase transfer catalysis was prepared. The catalytic activity and the recycle effect of Ru 3(CO) 9(PETPP) 3 for hydrogenation of styrene in aqueous/organic biphase catalysis system were studied. In addition, effects of reaction temperature, hydrogen pressure and reaction time were also investigated. The results showed that the reaction takes place mainly in organic phase at higher temperature (80 ℃). Under the conditions of θ =80 ℃, p (H 2)=2 MPa and t =3 h, both the PhCH∶CH 2 conversion and PhC 2H 5 selectivity are 100%. The PhCH∶CH 2 conversion is still 98 2% after reuse of the catalyst for 20 times. The catalytic performance of Ru 3(CO) 9(TPPTS) 3, Ru 3(CO) 9(PETPP) 3, Ru 3(CO) 9(TPPMS) 3 and Ru 3(CO) 9(TPP) 3 for biphase hydrogenation of styrene was compared. The experimental results for Ru 3(CO) 9(PETPP) 3 verified that there is a thermoregulated phase transfer catalysis process in the reaction system.
