Photocatalytic oxidative desulfurization of gasoline in [BMIm]Cu2Cl3 ionic liquid was studied. A 500-W high-pressure mercury lamp was used as the light source for irradiation, nano-TiO2 was used as the photocatalyst a...Photocatalytic oxidative desulfurization of gasoline in [BMIm]Cu2Cl3 ionic liquid was studied. A 500-W high-pressure mercury lamp was used as the light source for irradiation, nano-TiO2 was used as the photocatalyst and air was introduced by a gas pump to supply O2 as the oxidant. Influence of the ratio of V（ionic liquid） to V（oil） and the TiO2 addition on the desulfurization rate of gasoline was investigated. An oxidative kinetics equation was founded. The results showed that the [BMIm]CUECl3 ionic liquid was an effective extractant for the desulfurization of gasoline. The appropriate TiO2 addition was 0.05 g in 50 mL of reaction mixture. The yield of desulfurized gasoline could reach 98.2% after being subjected to reaction for 2 h under the conditions of adopting a ratio of V（ionic liquid）： V（oil）=1：4, an air flow of 100 mL/min and a TiO2 addition dosage of 0.05 g. The kinetics reaction for photo-oxidation of gasoline was a first-order reaction with an apparent rate constant of 1.9664 h^-1 and a half-time of 0.3525 h.展开更多
Two binuclear copper(I) complexes with novel structures and novel bonding,Cu_2(Ph_2PCH_2PPh_2)Cl_2 (Ph_2PCH_2PPh_2=dppm) and Cu_2(Ph_2P-CH_2CH_2PPh_2)Cl_2 (Ph_2PCH_2CH_2PPh_2=dppe), were prepared and characterized thr...Two binuclear copper(I) complexes with novel structures and novel bonding,Cu_2(Ph_2PCH_2PPh_2)Cl_2 (Ph_2PCH_2PPh_2=dppm) and Cu_2(Ph_2P-CH_2CH_2PPh_2)Cl_2 (Ph_2PCH_2CH_2PPh_2=dppe), were prepared and characterized through elemental analyses, ICP, IR(4000-200 cm^(-1), CsI disc.), ^(31)P-NMR spectra. Their electronic conductivities, oxidation and reduction potentials were measured. Preliminary studies show that both of the two complexes have chlorobridging and phosphorus-bridging structures.展开更多
sym Diphenylethane was prepared by reductive coupling reaction in water using iron powder as catalyst and Cu 2Cl 2 as cocatalyst. The product was characterized by infrared analysis, H NMR analysis and melting point me...sym Diphenylethane was prepared by reductive coupling reaction in water using iron powder as catalyst and Cu 2Cl 2 as cocatalyst. The product was characterized by infrared analysis, H NMR analysis and melting point measurement. The effects of catalyst molar ratio and reaction temperature were examined. The results showed that on the condition of n (benzyl chloride)∶ n (Fe)∶ n (Cu 2Cl 2)= 1 8∶1∶0 02, at 90 ℃, 86 7% yield could be achieved.展开更多
基金the Research Foundation of Hebei Province Education Department(2007440)
文摘Photocatalytic oxidative desulfurization of gasoline in [BMIm]Cu2Cl3 ionic liquid was studied. A 500-W high-pressure mercury lamp was used as the light source for irradiation, nano-TiO2 was used as the photocatalyst and air was introduced by a gas pump to supply O2 as the oxidant. Influence of the ratio of V（ionic liquid） to V（oil） and the TiO2 addition on the desulfurization rate of gasoline was investigated. An oxidative kinetics equation was founded. The results showed that the [BMIm]CUECl3 ionic liquid was an effective extractant for the desulfurization of gasoline. The appropriate TiO2 addition was 0.05 g in 50 mL of reaction mixture. The yield of desulfurized gasoline could reach 98.2% after being subjected to reaction for 2 h under the conditions of adopting a ratio of V（ionic liquid）： V（oil）=1：4, an air flow of 100 mL/min and a TiO2 addition dosage of 0.05 g. The kinetics reaction for photo-oxidation of gasoline was a first-order reaction with an apparent rate constant of 1.9664 h^-1 and a half-time of 0.3525 h.
文摘Two binuclear copper(I) complexes with novel structures and novel bonding,Cu_2(Ph_2PCH_2PPh_2)Cl_2 (Ph_2PCH_2PPh_2=dppm) and Cu_2(Ph_2P-CH_2CH_2PPh_2)Cl_2 (Ph_2PCH_2CH_2PPh_2=dppe), were prepared and characterized through elemental analyses, ICP, IR(4000-200 cm^(-1), CsI disc.), ^(31)P-NMR spectra. Their electronic conductivities, oxidation and reduction potentials were measured. Preliminary studies show that both of the two complexes have chlorobridging and phosphorus-bridging structures.
文摘sym Diphenylethane was prepared by reductive coupling reaction in water using iron powder as catalyst and Cu 2Cl 2 as cocatalyst. The product was characterized by infrared analysis, H NMR analysis and melting point measurement. The effects of catalyst molar ratio and reaction temperature were examined. The results showed that on the condition of n (benzyl chloride)∶ n (Fe)∶ n (Cu 2Cl 2)= 1 8∶1∶0 02, at 90 ℃, 86 7% yield could be achieved.
