Preparation of acetophenone from ethylbenzene by oxygen oxidation with manganese sulfate catalysis 硫酸锰催化氧气氧化乙苯合成苯乙酮
The oxidation of cyclohexane is still one of the major challenges of modern catalysis. 因此,寻找温和、高效的环己烷氧化的方法,是一个非常有意义,且具有挑战性的难题。
This enzyme could quickly catalyze the oxidation of pyrogallic acid as a substrate, but exhibited relatively low catalysis activity towards catechol, hydroquinone and resorcinol. 该酶迅速催化焦性没食子酸的酶促氧化反应,但对邻苯二酚、对苯二酚和间苯二酚的催化活性较低。
Two kinds of useful selenoxide reagents are synthesized via the oxidation of selenides by CAN under the condition of phase transfer catalysis. 采用CAN作氧化剂,在相转移催化条件下高产率地合成了具有重要价值的有机合成中间体苯苄亚硒砜和苄基亚硒砜。
It is considered that the outstanding effects on pollution removal of PPC are the results of combined actions between multiple factors of oxidation action of potassium permanganate, adsorption and catalysis effects of newly-formed hydrated manganese dioxide, and synergistic effect between the components of PPC. 并认为PPC优异的除污染作用是由于高锰酸钾氧化作用、新生态水合二氧化锰的吸附及催化作用以及PPC各组分间的协同效应等多种因素共同作用的结果。
Pottery jar storage was helpful for liquor oxidation, liquor absorption and liquor catalysis because of the ions such as Ni2+, Ti4+, Cu2+, Fe2+ contained in jar and its multiple-pole reticular formation and large surface area. 陶坛具有多微孔网状结构和极大的表面积及其含有Ni2+,Ti4+,Cu2+,Fe2+等离子,使陶坛对白酒贮存具有氧化、吸附和催化作用;
The newly improved method of wet air oxidation is the wet electric catalysis oxidation method. 该湿式电化学氧化技术是湿式空气氧化的改进方法。
This paper introduces the mechanism of various applied catalysis technologies such as catalytic direct combustion, catalytic oxidation, absorptive/ catalytic oxidation and phot-catalytic oxidation method in odor treatment, the choice of catalyzes and catalysis reactors. 介绍了在臭气治理中应用的催化直接燃烧法、催化氧化法、吸咐催化氧化法、光催化氧化法技术的机理,催化剂的选择和常用的催化反应器。
To satisfy the need of clean fuels, by combining selective oxidation and phase tranfer catalysis, the desulfurization technology for catalytic cracking gasoline is investigated under high speed homogeneous device. 为了满足清洁能源的要求,采用选择性氧化与相转移催化相结合的方法,在高速均质条件下对催化裂化汽油的脱硫工艺进行了研究。
The results can also be applied to the theoretical investigation of other surface properties ( such as electron states, segregation, oxidation, catalysis, adsorption and reconstructure in surface). 有关结果也可以用于其他表面特性(例如,热电子或热离子发射、表面电子态、表面吸附、表面氧化、表面催化、表面偏析和表面重构等)的理论分析。
The oxidation technology with micellar catalysis for epoxidation of propylene, a new development in propylene oxide ( PO) industry abroad, including the principle of micellar catalysis, the design of micellar catalysis system and its process developing, were introduced. 介绍了国外在环氧丙烷清洁生产技术领域的新研究进展:环氧丙烷胶束催化氧化技术,包括胶束催化的机理、胶束催化体系设计以及工艺开发。
The Synthesis of Polymer Bound Cu ( Salen) and lts Oxidation Catalysis for Propanethiol 聚合物键合Cu(Salen)的合成及其对丙硫醇的催化氧化
A new preparation way of PVAC in oxidation-reduction catalysis system was discussed. 介绍了醋酸乙烯单体在氧化-还原引发体系中低温乳液聚合的新工艺。
The Synthesis of Polymer Bonded Copper Porphyrin Complexes and Its Oxidation Catalysis for Propanethiol 聚合物键联铜卟啉的合成及其催化作用
Synthesis and Application of Fe-MCM-41 Molecular Sieves: Cyclohexane Catalysis Oxidation Into Cyclohexanone Formic acid/ H2O2 catalysis oxidation system was used to remove organo-sulfur compounds in VGO with assistance of ultrasound irradiation and DMF as extraction solvent. Fe-MCM-41分子筛的合成及应用&催化氧化环己烷制环己酮选用甲酸/H2O2为催化氧化体系,DMF为抽提溶剂,在超声波的作用下,催化氧化脱除直馏蜡油中的硫化物。
Processes to produce epoxypropane including chlorohydrination, co-oxidation of isobutane were reviewed with emphasis on hot processes including one step oxidation by catalysis of TS-1 catalyst and oxidation of propene by molecular oxygen or oxycompounds. 介绍了环氧丙烷生产工艺,包括氯醇法、异丁烷共氧化法,重点综述了现在的热点工艺:TS-1催化剂一步氧化技术、丙烯用分子氧或含氧化合物的氧化等。
Based on the model, the reactor is simulated. The effects of operation condition on sulfur dioxide oxidation catalysis reaction such as the inlet temperature for each bed of reactor, gaseous flow rate and oxygen-sulfur dioxide ratio on SO2 conversion and outlet temperature are analyzed. 在此基础上,对反应器系统进行了模拟计算,分析了操作参数:转化器各段进口温度、转化器入口气体流量及转化器入口气体中氧气和二氧化硫的初始浓度比对SO2转化率和转化器出口温度的影响。
In order to decrease the pollution caused by existing processes, many green production processes were developed worldwide, such as oxidation of cyclohexane or cyclohexene and biological catalysis. It s imperative and urgent to speed up the development of these new processes. 针对传统工艺存在的环境污染问题,介绍了目前正在开发的绿色生产工艺,如环己烷氧化法、环己烯氧化法和生物催化法,认为这些新工艺、新技术的发展势在必行。
Study on the Selective Indirect Electrical Oxidation of Benzyl Ethers under Phase Transfer Catalysis 相转移催化下苄基醚选择性间接电氧化的研究
Catalytic oxidation and asymmetric catalysis have attracted intensive interest from both organic chemists and industry. 催化氧化和不对称催化反应是当今有机合成化学的重要前沿和热点领域。
In the liquid-phase oxidation, the progress on the MC ( mid-century) catalysis system and its mechanism are outlined and special attention is paid to the application of biomimetic catalysis in the catalytic oxidation of methylbenzenes. 甲苯类化合物的液相选择性氧化中重点介绍了MC(mid-century)催化体系及其反应机理方面的研究进展,并特别介绍了仿生催化在甲苯类化合物催化氧化中的应用。
The advance of the selective oxidation of alcohols under phase transfer catalysis 醇类在相转移催化条件下选择性氧化的进展
The ceramic filter material with red soil base catalysis was prepared by sintering with red clay under the atmosphere of reduction; multi-phase catalysis and oxidation were carried out for methyl orange with the catalysis and oxidation filter material and hydrogen peroxide. 采用红黏土烧结制成红壤基催化陶瓷细滤料,用此催化滤料和过氧化氢对甲基橙进行多相催化氧化。
As one of the most important component in soil, manganese oxide mineral has some excellent properties, such as adsorption, oxidation and catalysis, and has always been focused on its environmental attribute. 氧化锰矿物是土壤中重要组分之一,具有良好的吸附、氧化和催化等特性,其环境属性备受关注。
TiO2/ PANI composite particles changed the absorbance for light and the re-combination ratio of electron-hole reduced, the oxidation of holes increased, the photo catalysis activity of composite particles was improved. 复合微粒材料对光吸收的变化,以及光生电子-孔穴复合率的降低,增强了空穴的氧化性,提高了光催化活性。
Heteropoly acid and its salts are paid wide attention by the researchers because of their special acidic compounds, "quasi-liquid phase behavior", and multi-functional ( acid, oxidation, Photoelectrocatalytic) advantages in the field of catalysis. 杂多酸及其盐类化合物以其独特的酸性、准液相行为、多功能(酸、氧化、光电催化)等优点在催化研究领域中受到研究者们的广泛重视。
Heterogeneous catalysis has attracted great interests in science, especially in industry. Many industrial process such as dehydrogenation, oxidation etc. are all based on heterogeneous catalysis. 多相催化在科学上,特别是在工业上有很重要的意义,例如加氢,脱氢,氧化,裂化等等生产过程都是建立在多相催化基础上的。
They can be transformed into phenols by hydroxylation of boronic acids, such as oxidation of hydrogen peroxide ( H2O2) and catalysis of copper. 他们可以通过硼酸的羟基化作用转变成酚类,如过氧化氢氧化、铜催化等。
From the experimental results, Luminol as the energy donor transferred its energy to the energy acceptor fluorescence under the oxidation of H2O2 and the catalysis of HRP in this system. 实验结果表明,在该化学发光共振能量转移体系中,在H2O2的氧化和辣根过氧化物酶(HRP)的催化作用下,luminol作为能量供体,将化学反应释放的能量转移给能量受体荧光素。
In the Recent studies, it was found that gold had high catalytic activity in the process of CO oxidation catalysis, selective oxidation, reduction of NOx, methanol decomposition, which were attracted scientists 'attention and widely studied in various countries. 近年的研究发现,金在CO氧化催化、选择性氧化、氮氧化物的还原、甲醇裂解等过程中有着较高的催化活性,受到各国科学家的关注和研究。