The catalytic effect of different modified molecular si eves were studied for synthesis amyl acetate, the results indicate that SO 2- 4 /FeZSM have go od catalysis activity to esterification .The effect of the ratio of reactants, the amoun t of the catalyst and the reaction time were also investigated.

考察不同改性分子篩催化合成乙酸戊酯的催化活性嗯啊哈轻点无码视频，結(jié)果表明：改性SO2 - 4/FeZSM對(duì)合成酯的催化作用較好不要啊好舒服黄色视频，并討論了以該催化劑催化酯化時(shí)原料配比国产一级特黄A片A视频、催化劑用量久久久久久久久久久久网、反應(yīng)時(shí)間等因素與酯化反應(yīng)的關(guān)系。

On the basis of aerobic oxidation ofβ-ionone catalyzed by supported catalysts/butyraldehyde system,a series of cycloolefines such as cyclohexene,β-methylionone,α-ionone,andα-pinene were oxidized under the general conditions to give corresponding epoxides and allylic oxides.

將三種催化體系CMPS-Co_2/正丁醛日韩mv在线看成人网站、Co_2/SiIm-正丁醛日韩ww频在线免费观看、MoO_2_2/SiIm-正丁醛推廣應(yīng)用到不同環(huán)烯烴催化氧化反應(yīng)，雖然各反應(yīng)底物之間的轉(zhuǎn)化率和氧化選擇性變化很大yw国产在线视频在线观看，但對(duì)三種催化體系橫向比較而言国产精品特黄特级AAAAAA片，其催化氧化情況相當(dāng)。

After nearly two years intensively preparing work, the scientific agreement of "Laboratoire Franco-Chinois de Catalyse" had been signed finally at GIF, Paris, on March 20,2000, by president of CAS Lu Yongxiang and Director of CNRS Catherine Brechignac.At the same time, the "Statuts du Laboratoire Franco Chinois de Catalyse" has been signed by Prof. Can Li, the Director the State Key Laboratory of Catalysis of DICP and Prof. Bernard Bigot, the Director of Institut de Recherche sur la Catalyse, France.

經(jīng)過近兩年的籌備处女开破视频，2000年3月20日欧美大胆一级视频，中科院院長(zhǎng)路甬祥與法國(guó)科研中心布希尼亞克總主任，在法國(guó)GIF城堡簽署了建立中法催化聯(lián)合實(shí)驗(yàn)室的科技合作協(xié)議嗯好深啊用力哦啊视频，同時(shí)我所催化基礎(chǔ)國(guó)家重點(diǎn)實(shí)驗(yàn)室主任李燦研究員與法國(guó)里昂催化研究所所長(zhǎng)比葛教授也簽署了中法催化聯(lián)合實(shí)驗(yàn)室的章程協(xié)議中国三级黄色片18岁美女全体逼。

It is demonstrated that the chiral quaternary ammonium salts catalysts exhibit promising catalytic properties for the substrate. Part III: The synthesis and the characterizing of the macroporous aminomethyl resin-supported cinchona alkaloid complexes and the study on its catalytic properties The part consists of two subsections. the macroporous aminomethyl resin -supported cinchona alkaloid complexes were synthesized by the stuff (cinchonine, quinine and macroporous aminomethyl resin). Their structures were characterized by means of elemental analysis, XPS, TG/DTA; the chiral polymer-supported complexes were first used as catalysts for the reduction of ketones. Their catalytic properties for the reduction processes were investigated. The comparison of the products e.e., the conversion of the substrate among different reduction processes was employed with determined by HPLC. The effects of the time, the temperature, the ratio of catalyst to substrate, reaction solvent as well as the recycle times were also discussed.

第三章聚-4-氨甲基苯乙烯負(fù)載金雞納堿金屬絡(luò)合物的合成與表征及其不對(duì)稱催化性能研究本章分為兩節(jié)，以辛可寧和奎寧及聚-4-氨甲基苯乙烯為原料手机在线免费看黄色片网站，合成了4種聚-4-氨甲基苯乙烯負(fù)載金雞納堿絡(luò)合物催化劑超碰地址，并對(duì)它們的結(jié)構(gòu)用元素分析、X-射線光電子能譜、TG/DTA等幾種測(cè)試手段進(jìn)行了表征国产欧美精品一区二区三区四某1区；首次將所合成的手性高分子負(fù)載的金屬絡(luò)合物用于催化芳香酮不對(duì)稱還原反應(yīng)色综合久久91，詳細(xì)研究了所得的手性高分子負(fù)載的金屬絡(luò)合物對(duì)不同底物的催化性能，用HPLC等分析手段定量檢測(cè)了還原過程的底物轉(zhuǎn)化率及其產(chǎn)物對(duì)映異構(gòu)體選擇性哦美一级黄色网站，并考察了反應(yīng)時(shí)間亚洲免费一级免费看片、反應(yīng)溫度、催化劑和底物投料比视频一区二区久久91、反應(yīng)溶劑和循環(huán)次數(shù)對(duì)催化性能的影響。

Because of specificity and high efficiency, the catalytic efficiency of cellulase is high(more 103~1013 times than general catalysts), the condition of catalytic reaction is mild and the catalytic activation can be adjusted and controlled, which can improve remarkably semblance and handle of fabrics during finishing fabrics by biological catalyzing, moreover cellulase can replace some chemical materials such as acid, cocain, chlorine and phosphorus etc, so as to decrease pollution, make no waste-water and protect environment.

由于酶具有專一性和高效性一级婬片又大又长又粗，采用生物催化Ⅴ片视频免费在线观看，其催化效率高比一般催化劑高10~3～10~(13倍，催化反應(yīng)條件溫和男女激情网站，催化活性可調(diào)節(jié)控制国产精品资源网在线观看，應(yīng)用在紡織品處理上，能顯著改善織物的外觀和手感色综合91，并能取代一部分酸人人爽人人看人人硬、堿、氯噜噜嘿在线无码视频、磷化合物等化工原料在线等免费看黄片，從而減少污染，不產(chǎn)生污水欧美综合色网站，有利于環(huán)保和生態(tài)美国少妇a级。而且酶本身又無毒，容易生物降解黄色视频在线免费观看无码高清强奸，不會(huì)引起環(huán)境污染国产免费一级特黄真人视频大全，所以酶處理已被公認(rèn)為是一種符合環(huán)保要求的綠色印染加工方法。本文選用了市場(chǎng)上常用的纖維素酶R-10和纖維素酶ECS2610兩種生物酶91人妻论坛国内入口。

From the literatures reported, the study of polarographic catalytic wave for inorganic metal ions has made a great progress.

從國(guó)內(nèi)外報(bào)道的極譜催化波文獻(xiàn)來看igao，無機(jī)金屬離子的催化波研究已取得了很大進(jìn)展，有平行催化波色哟哟无码一区，絡(luò)合物極譜催化波和鉑族元素的氫催化波等多種類型正在播放国产一级特黄。

The present dissertation deals with:(1) Exploring the feasibility of the CO〓 methanation and the conversion CH〓/H〓 into C〓 hydrocarbons under plasma with catalyst at ambient temperature and atmosphere.(2) Designing a reactor and preparing some catalysts suited for the conversion of carbon dioxide via the cooperation effect of plasma and catalysts.(3) Optimizing reaction conditions of conversion carbon dioxide to C〓 hydrocarbons in the proposed process.(4) Studying the reaction mechanism of conversion carbon dioxide to C〓 hydrocarbons under plasma by using in situ OES technology.(5) By the results of characterizing coked catalysts, exploring the reasons that result in the coking of catalyst and the paths for decreasing the deposit in the catalyst under plasma.(6) Analyzing the energy efficiency of the plasma catalysis and exploring the paths for improving the energy efficiency.

論文的主要研究工作包括：（1）探索脈沖電暈等離子體與催化劑共同作用CO〓／H〓甲烷化和由CH〓/H〓合成C〓烴反應(yīng)的可行性；（2）研制等離子體催化CO〓轉(zhuǎn)化的反應(yīng)器和適配的催化劑大屌干屄视频；（3）優(yōu)化等離子體催化CO〓轉(zhuǎn)化制C〓烴反應(yīng)的工藝條件和電參數(shù)亚洲欧美中文日韩V日本；（4）利用原子發(fā)射光譜原位技術(shù)對(duì)等離子體反應(yīng)的診斷結(jié)果，對(duì)等離子體催化CO〓轉(zhuǎn)化制C〓烴反應(yīng)的機(jī)理進(jìn)行推斷欧美一级媱片^片久久精品；（5）通過對(duì)積碳催化劑的表征結(jié)果大伊人一区在线视频，分析積碳的類型及其成因，并探討減少積碳的途徑色哟哟亚洲；（6）通過對(duì)等離子體催化CO〓轉(zhuǎn)化制C〓烴反應(yīng)能量效率的分析乱色熟女一区二区免费视频，探討提高等離子體催化反應(yīng)能量效率的途徑欧美一级A片直播。

Base played a crucial role in this reaction: in the Pd2/L1 catalyzed α-arylation of ethyl malonate, K3PO4 is the base of choice; in the α-arylation of ethyl acetoacetate, K2CO3 is the most effective base.

在這類催化反應(yīng)中，堿的選擇具有重要的影響：以K3PO4為堿国产精品原创综合， Pd2/L1催化體系在丙二酸二乙酯的α-芳基化中啪啪啪免费无码视频，富電子溴代芳烴顯示較好的活性； Pd2/L1催化的乙酰乙酸乙酯α-芳基化時(shí)免费看的毛片大全网站，以 K2CO3為堿wwjizz国产，催化體系顯示較好的活性，這個(gè)催化體系可控制反應(yīng)得到α-芳基乙酰乙酸乙酯国产福利院精品，而不是脫乙豕焖易勇褹片；漠a(chǎn)物。

Base played a crucial role in this reaction: in the Pd2/L1 catalyzed α-arylation of ethy malonate, K3PO4 is the base of choice; in the α-arylation of ethyl acetoacetate, K2CO3 is the most effectiv base.

在這類催化反應(yīng)中欧美性爱视频在线观看鲁片，堿的選擇具有重要的影響：以K3PO4為堿一区二区激情黄色视频免费观看，Pd2/L1催化體系在丙二酸二乙酯的α-芳基化中，富電子溴代芳烴顯示較好的活性小视频福利；Pd2/L1催化的乙酰乙酸乙酯α-芳基化時(shí)免费观看AA视频，以K2CO3為堿，催化體系顯示較好的活性偷窥厕所AAAAAA片，這個(gè)催化體系可控制反應(yīng)得到α-芳基乙酰乙酸乙酯九九在线一区，而不是脫乙酰基的產(chǎn)物欧美韩日黄色一区和二区。

On this basis, chosing 15w germicidal lamp with radiation centred at 253. 7nm or 15w blacklight fluorescent lamp with radiation centred at 365nm as the light source respectively, the destruction effects of trace impurities in water by photocatalytic oxidation method using TiO〓 as an immobile phase have been investigated, and the effects are contrasted with photolysis. The investigation is mounted into Phenol aqueous solution, Hydroquinone and Humic Acid aqueous solutions嗯一毛片黄片操逼片、three representative halohydrocarbons coexisting in main water、the comprehensive index removal of varied trace organic pollutants in main water中国黄色网站在线播放、the removal of residual chlorine and the disinfecting action, etc..

在此基礎(chǔ)上81色色色，選擇主波長(zhǎng)253.7nm的紫外線殺茵燈或主波長(zhǎng)365nm的藍(lán)黑管紫外線熒光燈作為光源，研究了TiO〓膜固定相光催化氧化法去除水中微污染物的效果日本三级欧美三级人妇视频，包括苯酚水溶液国家aaaa级黄片、對(duì)苯二酚水溶液和腐植酸水溶液的光催化氧化以及自來水中共存的三種典型的氯代烴水溶液三氯甲烷、四氯化碳和四氯乙烯的混合光催化氧化久久精品国产只有精品2021、自來水中有機(jī)物總體去除效果以及光催化去除自來水中余氯的作用和光催化的消毒作用等久久男人深夜影院，并進(jìn)行了光解對(duì)比實(shí)驗(yàn)。