催化的

In this paper, 2,2-dimethylolbutyraldehyde was synthesized through the acetal reaction of formaldehyde and butyraldehyde, using silicotungstic acid as catalyst.

通过实验研究了硅钨酸对此羟醛缩合反应的催化效果，研究探讨了硅钨酸对此缩醛反应的催化反应活性，以及催化剂的的用量，反应物配比，反应时间等因素对反应产品收率的影响，确定了最佳催化条件。

Quinclorac and allyl alcohol as raw materials, 3, 7-dichloro-8-quinolinoxylic acid allyl ester was obtained when catalyst is oil of vitriol or super solid acid SO〓/TiO〓. Using both catalysts, organic synthesis technology process was made respectively, and the ester was analyzed and characterized by IR spectrum and NMR spectrum Through experiment, both preparing conditions were optimized and discussed respectively.

以TiO〓为载体负载SO〓制备出固体超强酸催化剂，确定了SO〓/TiO〓催化剂制备的技术路线，以丙酸正丁酯为探针实验，考察了新型固体酸催化剂SO〓/TiO〓的催化活性及制备条件对催化活性的影响，对影响其催化效果的工艺条件进行了优化，并探讨了影响的规律性。

Based on the success of the industrialization of the process of catalytic distillation of methyl acetate hydrolysis, the new process of catalytic distillation of methyl acetate and methanol azeotrope hydrolysis and related fundamental research were studied. These can make further improvement on the process in order to simplify the process and reduce the energy-consumed of the recovery system. In addition, theoretical system of the simulation and design the catalytic distillation process were established, which can provide the basis of the pilot plant and industrialization in the future.

本文在催化精馏水解工艺工业化成功的基础上，进行了醋酸甲酯和甲醇共沸物催化精馏水解新工艺及其相关基础研究，以进一步改进工艺，达到简化流程及节能降耗的目的，同时建立起催化精馏过程模拟和设计的理论体系，为中试及将来的工业化打下了坚实的基础。

Based on the success of the industrialization of the process of catalytic distillation of methyl acetate hydrolysis, the new process of catalytic distillation of methyl acetate and methanol azeotrope hydrolysis and related fundamental research were studied.

本文在催化精馏水解工艺工业化成功的基础上，进行了醋酸甲酯和甲醇共沸物催化精馏水解新工艺及其相关基础研究，以进一步改进工艺，达到简化流程及节能降耗的目的，同时建立起催化精馏过程模拟和设计的理论体系，为中试及将来的工业化打下了坚实的基础。

Secondly, the hydrogenation nitrobenzene and benzaldehyde with SiO2-CMC-Pd were investigated as well, and some satisfactory results were obtained.

最后，我们还研究了以羊毛为配体的Wool-Pd催化剂在催化加氢上的催化活性，结果也证明羊毛是一种优良的配体，催化剂的催化性能好。

Result of photocatalytic degradation of methyl orange showed that the TiO2 photocatalytic activity decreased with the decreasing of anatase ratio in the mixed crystallite of anatase,rutile,and brookite;and photocatalytic activity of pure rutile TiO2 was relatively bad.

光催化降解甲基橙的研究表明，所得锐钛矿、金红石和板钛矿3种混晶中，二氧化钛的光催化活性随着锐钛矿含量的降低而降低；纯金红石型二氧化钛的光催化活性较差。

Reductive dechlorination of chlorinated Endocrine Disrupting Chemicals in Water by metallic catalytic reduction was studied for further understanding the application of palladiumized iron-scrap bimetallic catalytic reduction technology in treating high molecular weight and structure complicated refractory chlorinated organic pollutans, especially, the reductive dechlorination reaction of the three chlorinated EDCs: 2,4-dichlorophenoxyacetic acid(2,4-D), Hexachlorocyclohexane, and chlordane.

通过研究水体中有机氯类环境内分泌干扰物在金属催化还原体系中的还原脱氯反应，考察了铁屑镀钯双金属催化还原技术在处理水体中大分子量复杂结构的难降解氯代有机污染物的应用，着重研究了水体中2，4-二氯苯氧乙酸(2，4-D)、六六六和氯丹三种有机氯类环境内分泌干扰物在Pd/Fe催化还原体系中的还原脱氯行为。

This paper is focused on the preparation, characterization of metal clusters and theircatalytic performance in the enantioselective as well as stereoselective hydrogenations. It iscomposed of the five parts as follows: Chapter 1 A review was given on the two most studied enantioselective systems—Ni/TA and Pt/cinchona system, including some recent progress.

本论文研究了铂、铱纳米金属簇在α-酮酯、α-二酮不对称氢化中的催化性能及金属离子在α-二酮立体选择性氢化中的修饰作用，主要分为以下几部分：第一章对多相不对称催化体系一Ni／TA和Pt／cinchona及其一些最新进展作了较系统的评述；同时简要介绍了纳米金属簇的特性及其在催化中的一些应用。

This article reviewed the question of the photochemical catalysis material development condition and existed the problem at present, and elaborated comprehensively the nanometer TiO_2 photo-chemical catalysis technology in aspect of the application, modification, preparation, carrier research situation and so on, and introduced the nanometer TiO_2 photo-catalyst and its the doping sample and the carrier preparation method and the photochemical catalysis activeness appraisal and the attribute experimental technique in detail.

本文系统回顾了光催化材料的发展状况及现在所存在的问题，全面阐述了纳米TiO_2光催化技术在应用、改性、制备、载体等方面的研究情况，详细介绍了纳米TiO_2光催化剂及其掺杂样品、载体制备方法、光催化活性评价及表征实验方法。

This photocatalyst was used to treat wastewater containing azo dye. It shows that natural rutile photocatalyst has certain photocatalytic action on azo dye.

用制备的天然金红石光催化材料处理含偶氮染料废水，结果表明其对偶氮染料的作用既有吸附，也有降解，表明天然金红石光催化材料有一定的光催化活性。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。