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Titania-supported nonprecious oxides catalysts have been prepared by impregnation and coprecipitation, respectively, and tested for carbon monoxide oxidation. The supported copper oxide catalyst showed higher catalytic activity for CO oxidation.

对浸渍法和共沉淀法制备得到的各种TiO2负载氧化物催化剂进行了活性组分的筛选，结果发现，两种方法得到的CuO催化剂均具有优良的CO氧化催化性能。

Catalysts used for abating the pollution of automobile exhaust emissions were prepared by nonprecious metal oxides, such as the oxides of Ⅰ B,Ⅴ B,Ⅵ B,Ⅶ B,Ⅷ B group, alkaline earth group and rare earth elements.

在实验室用模拟汽车排气，评价催化剂的氧化、还原效率，获得了具有较低起燃温度的催化剂(对于CO低于150℃HC为200℃)，机械强度良好，而且可承受高温冲击(耐温可达900～1000℃)。

The applicability of the model developed is also extended to differently shaped nonspherical catalysts such as extrudates, with using another index for strength, i.

初步关联了催化剂单颗粒性能和整体堆积性能。

The peaks intensity of Zr-MCM-41 mesoporous molecular sieves had a tendency to weak and the catalytic activities of them as catalysts in catalizing octadecanol to corresponding octadecanoic acid decreased with addition of zirconium ions.

水热环境下可加速反应物质的迁移运动，氨水缓慢释放OH-离子，促进了TEOS水解、缩聚反应及有机-无机组装过程更好地进行。

This paper discussed the synthesis of different plasticizers of DONTP by using DMT,octyl alcohol,octanol,low molecular weight emtrol and others as raw materials. And the effect of process and catalysts on plasticizers was also discussed.

以对苯二甲酸二甲酯、辛醇、丁醇等低分子质量脂肪醇为原料，采用酯交换法合成出DONTP等增塑剂品种，并就合成工艺条件、催化剂种类等因素对增塑剂性能影响进行了讨论。

Application status and trends in hydrodesulfurization and olefine hydrogenation catalysts are reviewed.

文摘：综述了国内外加氢转化催化剂的开发应用现状和发展趋势。

Selected novel olefinic orthoesters, may be copolymerized with other olefins using certain late metal transition catalysts, to form novel polyolefins containing orthoester pendant groups.

利用某些后过渡金属催化剂，可以使选择的新颖烯烃原酸酯与其它的烯烃共聚合，以形成含原酸酯侧基的新颖聚烯烃。

This review on organobismuth chemistry is carried out as the following four aspects:(1) the molecular structure characteristics and synthesis of new organobismuth compounds;(2) as reagents for cross-coupling, oxidation, arylation, and other reactions;(3) as catalysts for organic synthesis;(4) as medicines for the treatment of ulcers, anti-tumor and radio-therapy, etc.

本文回顾了近10多年来有机铋化学的研究状况，主要从以下4个方面进行综述：(1)新型有机铋化合物的合成途径与结构特征；(2)有机铋化合物作为交联偶合、氧化、芳基化和其它反应的试剂；(3)作为催化剂；(4)作为生物医药用于溃疡、肿瘤和放射治疗等。

Metal/ oxide composite aerogels can be used as catalysts because of their high specific surface area. In this paper, Co-rich Co/SiO2 composite aerogels in which mass fraction of Co can reach 66%were firstly prepared by sol - gel process of Co-containing tetraethyl orthosilicate. The influence of H2O, catalyst, solvent and composition of Co-containing tetraethyl orthosilicate on the sol-gel process are discussed.

本工作首次采用含钴硅酸乙酯进行溶胶～凝胶反应来制备高钴含量的纳米级Co/SiO2复合气凝胶，制备的Co/SiO2复合气凝胶中n：n的比例最高可达2：1，且复合气凝胶中的Co含量可在小于66％的范围内任意调节，并系统研究了水量、催化剂浓度、溶剂量及含钴硅酸乙酯的组成对溶胶-凝胶过程的影响。

The results showed that not only the conversion of TMPD and the selectivity to green oxane were almost the same,but also the catalyst was easily separated and recycled as compared with conventional catalysts.

结果表明：与传统催化体系相比，该体系不仅具有相当的转化率和选择性，而且具有催化剂分离简单、可循环使用的优点。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐