【摘 要】
：
Molybdenum (Ⅵ) complex, namely molybdenum dioxobis(2,4-pentanedione) [MoO2(acac)2] used asepoxidation catalyst species, was synthesized and characterized by el
【机 构】
：
College of Chemical Engineering
【基金项目】
：
the Outstanding Personality Innovation Funds of Henan Province;
论文部分内容阅读
Molybdenum (Ⅵ) complex, namely molybdenum dioxobis(2,4-pentanedione) [MoO2(acac)2] used asepoxidation catalyst species, was synthesized and characterized by elemental analysis and infrared spectrum.Polystyrene-supported molybdenum dioxobis(2,4-pentanedione) [MoO2(acac)2] for synthesis of epoxycyclohexanewas prepared by phase transfer catalysis method. Effects of various factors in synthesis of epoxycyclohexane by re-action of cyclohexene and t-BuOOH in the atmosphere of nitrogen catalyzed by polystyrene-supported MoO2 (acac)2were also investigated. Under the following conditions, n(cyclohexene):n(t-BuOOH)＝3.5:1 (based on 0.1 mol of t-BuOOH), volume of solvent ～10 ml, reaction temperature ～80℃, reaction time ～60 min, and mass of molybdenumin the catalyst ～ 2.30 × 10-3 g, the yield of epoxycyclohexane on the basis of t-BuOOH is over 99.5%, and thepurity of epoxycyclohexane is about 99.9% by gas chromatogram(GC) analysis.
其他文献
Twenty-five derivatives of glycyrrhetinic acid(GA)modified on the A-ring,at C30 and C11 positions were synthesized.Their in vitro cytotoxicity against various c
We observed the polymorphism distribution and coaction of uncoupling protein 3(UCP3)-55C/T,adiponectin(APN)+45T/G and tumor necrosis factor(TNF)-a-308G/A on the
In this article,we study the first two eigenvalues of the higher order buckling problem on a domain in the unit sphere.We obtain an estimate on the second eigen
This paper presents a computational investigation of hydrodynamics,heat transfer and cracking reaction in a heavy oil riser operated in a novel operating mode o
Leakage from underground pipes could result in foundations being undermined and cause damage to adjacent infrastructure.Soil particles surrounding the leaking a
The urethane reaction of o-hydroxybenzyl alcohol with phenyl isocyanate was monitored with in situ FT-IR.Dibutyltin dilaurate was used as catalyst and its amoun
Semiconductor CdS nanoparticles were synthesized by the sonochemical reduction of a mixed aqueous solution ofCdCl2, Na2S2O3 and (CH3)2CHOH in Ar atmosphere at r
A series of novel amphibious organic/inorganic hybrid proton exchange membranes with H3PO4 doped which could be used under both wet and dry conditions was prepa
The purpose of the present paper is to investigate the effect of elastic deformation of bearing liner on the acoustic behavior of oil lubricated journal bearing
In this paper,an axial dispersion mathematical model is developed to simulate a three-phase slurry bubble column reactor for direct synthesis of dimethyl ether(