• 甲醇催化脱水可得二甲醚。

    Dirmethyl ether (DME) Can be synthesized by catalytic dehydration of methanol.

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  • 以单质催化直接由催化脱水生产苄醚。

    Synthesized of benzyl oxide was using iodine catalyst dehydration for benzyl alcohol.

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  • 甲醇原料,氧化铝催化甲醇催化脱水气雾剂高纯二甲醚工艺条件进行试验研究

    The process conditions for producing high purity DME of aerosol grade by catalytic dehydration of methanol in gas phase were studied and tested by using alumina as a catalyst.

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  • 研究不同对柠檬催化脱水效果不同PTC催化作用效果,并用正交实验设计确定了使用KOH- TBAB催化脱水法合成柠檬腈最佳反应条件

    The catalytic dehydration of lemonile with various alkalis and PTC was studied. The optimal conditions dehydration to lemonile for KOH TBAB catalytic by orthogonal design were determined.

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  • 离子交换纤维纤维状离子交换材料功能包括离子交换、吸附脱水催化脱色等

    Ion exchange fiber is a kind of material whose function covers ion exchange, absorption, dehydration, catalysis and decoloration.

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  • 报道了钨脱水催化反应。

    Tungstogermanic acid as a catalyst for dehydration of alcohol to form ether or alkene is reported.

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  • 重点研究了交叉缩合副反应控制、中间产物脱水催化加氢有关参数

    Especially it introduces the parameter of the cross aldol condensation and side-reaction controlling, the midterm products separation, and catalyzed hydrogenation.

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  • 分子筛催化低浓度乙醇脱水制生物乙烯进行了研究。

    The processing conditions of preparing bio-ethylene with molecular sieve catalyst from ethanol as material were studied.

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  • 考察孔强酸性树脂1,4 丁二醇脱水四氢呋喃催化作用。

    The catalysis of big pore strong acid resin for 1,4-butanediol dehydration to tetrahydrofuran is investigated.

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  • 利用正交实验考察了反应温度、反应时间催化剂用量脱水反应影响

    Effects of reaction temperature, reaction time, quantity of catalyst on the dehydration reaction have been explored by orthogonal experiments.

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  • 利用酯化反应基本原理,以三醇和醋酸催化作用下进行酯化反应,经脱水减压精馏得甘油三醋酸酯产品。

    Using glycerine and acetic acid as raw materials and in the presence of catalyst, glycerin triacetate was synthesized through esterification, dehydration and underpressrue distillation.

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  • 利用正交实验考察反应温度、反应时间催化用量真空度脱水反应影响。

    Effects of reaction temperature, reaction time, quantity of catalyst, vacuum tightness on the dehydration reaction have been explored by orthogonal experiments.

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  • 对以磷钨催化己醇脱水制备烯的反应进行研究

    The research on the dehydration of cyclohexanol to prepare cyclohexene using phosphotungstic acid as catalyst is made.

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  • 对甲基苯磺酸催化脱水制备环烯反应进行了研究

    Synthetic of cyclohexene by dehydration of cyclohexanol on the catalyst ofp-Tolenesulfonic acid is studied.

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  • 采用金属脱水载体纳米二氧化硅改性剂乙腈环氧丙烷制备出氨钙体系催化

    Calcium ammine catalyst was prepared with metal calcium, dehydrated liquid ammonia as raw materials, nano-silica as a carrier and acetonitrile and propylene epoxide as modifiers.

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  • 考察若干酸性催化蓖麻脱水的影响。

    Effects of several kinds of acidic catalysts on castor oil dehydration have been explored.

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  • 研究催化剂用量因素缩合影响,考察脱水催化加氢条件

    The amount of catalysts and other factors in condensation were investigated. The conditions on dehydration and hydrogenation were also investigated.

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  • 研究一种改进脱水方式费托F-T合成催化结构性质催化性能的影响。

    The effects of an improved dehydration way on structural properties and Fischer-Tropsch(F-T) synthesis performance of an iron-based catalyst were studied.

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  • 通过实验发现催化增塑剂以及游离氰酸含量密封胶的时间有很大影响

    Through the experiment, it is found that the tack free time is affected greatly by the content of catalyst, dehydrating agent, plasticizer and the free NCO.

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  • 选择合适原料配比催化脱水剂用量反应条件,反应所得到丙酮酸乙酯收率82.5%;

    Selective suitable conditions such as the ratio of reactions, different catalyst and the addition of dehydrater etc are presented. The result which is the yield of product is 82.5%.

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  • 针对乙醇脱水制乙烯催化存在问题提出当前催化发展趋势

    The trend of catalyst development is set forth according to the problems existing in the ethanol dehydration.

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  • 考察催化用量、油洛温度反应时间脱水反应的影响得出了最佳反应控制条件

    The influences of catalyst amount, reaction temperature and reaction time were investigated, and the conditions for the reaction were optimized.

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  • 吡啶吸附红外光谱结果显示负载样品同时具有BL中心异丙醇脱水催化反应发生在B酸位上。

    IR results of pyridine adsorption reveal that supported samples have both Bronsted and Lewis acid centers, and 2-propanol dehydration is a Bronsted acid catalysed reaction.

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  • 阳离子交换树脂NKC-9固体催化剂、二酸甲醇为原料,采用分子筛吸附脱水技术合成酸二甲酯。

    Synthesis of dimethyl succinate from succinic acid and methanol on cation exchange resin NKC-9 was studied under adsorption dehydration with 3A zeolite adsorbent.

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  • 讨论了发泡剂、成脱水成炭催化填料的选用,及各组分防火涂料中的作用;

    Selection of fireproofing coating components, such as forming agent, carbonforming agent, dehydration and carbonforming catalyst and colourant, were discussed.

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  • 方法包含催化存在 下使脱水,该催化包含负载于载体的氧化铈。

    The process comprises dehydrating a diol in the presence of a catalyst comprising cerium oxide supported on a carrier.

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  • 发明公开了一种乳酸脱水制备丙烯酸及其丁酯催化组成及制备方法

    The invention discloses a catalyst used for preparing acrylic acid and butyl ester by the dehydration of butyl lactate and a preparation method thereof.

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  • 硫酸锆、硫酸分别代替硫酸,催化脱水合成了烯,主要考察了催化剂用量、分馏反应时间对产物收率影响。

    Cyclohexene was synthesized by dehydration of cyclohexanol using zirconium sulfate or potassium hydro - gen sulfate as catalyst instead of concentrated sulfuric acid.

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  • 硫酸锆、硫酸分别代替硫酸,催化脱水合成了烯,主要考察了催化剂用量、分馏反应时间对产物收率影响。

    Cyclohexene was synthesized by dehydration of cyclohexanol using zirconium sulfate or potassium hydro - gen sulfate as catalyst instead of concentrated sulfuric acid.

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