The physical properties of polyethylene obtained with rare earth catalyst have been studied by various methods.
本文研究了用稀土催化剂聚合得到的聚乙烯（稀土聚乙烯）的结构及性能。
The invention relates to a binary alkyl benzene sulfonic acid rare earth catalyst, a preparation method and the application thereof.
本发明涉及二元烷基苯磺酸稀土催化剂及制法和应用。
The invention relates to a sulfoacid rare earth catalyst for polymerizing high-cis-isoprene rubber and a preparation method thereof.
一种用于聚合高顺式异戊二烯橡胶的磺酸稀土催化剂，其特征在于该催化剂是由苯磺酸钕稀土配合物及烷基铝组成；
The invention relates to sulfonic acid rare earth catalyst used for preparing polyisoprene and preparation method and application thereof.
本发明涉及用于制备聚异戊二烯的磺酸稀土催化剂及制法和应用。
The invention adds a new catalyst for the existing rare earth catalyst system and a catalyst system for the field of producing and synthesizing the rubber.
该催化 剂为现有稀土催化体系又增加了一个新的品种，为生产合成橡胶领域 又增加了一个催化体系。
In this paper, the rare earth catalyst of automobile tail gas purification and the method, mechanism and present research and application at home and broad are introduced.
主要介绍了稀土汽车尾气净化催化剂及其净化的方法、原理，及当前国内外对稀土催化剂在汽车尾气净化中的研究与应用现状。
The application of HG-1 type rare-earth catalyst was reviewed, analysis of this catalyst was carried out theoretically and experinmentally, and it is proved to be a good catalyst.
综述了HG-1稀土催化剂应用情况，并从理论上进行了分析，认为HG-1稀土催化剂是一种性能十分优良的催化剂。
Resonance Raman spectra have been reported firstly for soluble polyacetylene prepared by rare-earth catalyst.
报道了用稀土催化体系制备的可溶性聚乙炔的拉曼光谱。
The experimental result shows that the reaction order of the exhaustive oxidation of Benzene over rare-earth perovskite structure catalyst is 1.
实验结果表明，苯在稀土钙钛矿型催化剂上完全氧化反应的反应级数为1。
The growth of CNTS( carbon nanotubes) by catalytically cracking ethylene in the presence of the supported catalyst doped with rare earth samaria is reported.
稀土催化剂是一种稳定性好、选择性高、很活泼的催化剂，在石油的催化裂解方面得到了广泛的应用。
The preparation and field-test of the 778-type granular rare-earth catalyst for the treatment of auto exhaust gases have been studied.
本文叙述了778型颗粒状汽车尾气净化稀土催化剂的研究和应用。
Etherification of methanol with ethylene oxide (EO) was investigated systematically on the pillared rare earth solid acid catalyst.
全面系统地考察了在层柱稀土固体酸催化剂上甲醇和环氧乙烷醚化反应。
Doped rare earth oxides have been widely used in three-way catalyst(TWC) for purification of automobile exhausts because of its special properties.
稀土元素以其特殊的物理和化学性质在汽车尾气三效净化催化剂（TWC）中获得了广泛应用。
Rare earth perovskite-type oxide catalyst as a substitute for traditional rare metal catalyst has a great potential to purify automotive emission due to good catalytic activity and low cost.
钙钛矿型稀土氧化物催化剂具有较好的催化活性，成本低廉，在替代传统的贵金属催化剂净化汽车尾气方面潜力巨大。
Effects of rare earth metal salts with different ligands and amount of the catalyst on the reaction were studied.
考察了催化剂用量和带有不同配体的稀土金属催化剂对反应的影响。
The necessity and possibility of replacement of noble metals by rare earth elements in the automobile exhaust catalyst control technology were elucidated.
阐述了汽车尾气催化净化工艺中用稀土代替贵金属的必要性和可能性。
To abate the pollution of industrial waste gases, containing CO and organic hydrocarbons, a copper-rare earth oxide catalyst of monolithic form was developed.
研究了含铜-稀土氧化物的非贵金属蜂窝状催化剂，目的是用于含烃类工业废气的净化。
Cis 1,4-polybutadiene synthesized by rare-earth catalyst has high cis content, high degree of molecular reqularity and low degree of branching.
用稀土催化剂得到的顺-1，4-聚丁二烯具有顺式含量高，支化度小及分子链结构规整性好等特点。 在常温下为非晶态，但在低温下易于结晶，因而具有较高的力学性能。
This oven is suited to industries like fine chemical engineering (e. g. catalyst), power battery material and rare earth material.
该炉可用于精细化工(例如催化剂)、电池材料、稀土材料等行业。
The effects of the different rare earth in catalyst on catalytic activity and molecular weight of copolymer were studied.
考察不同稀土元素对组成的催化剂活性和共聚物分子量的影响。
The invention belongs to the field of catalysts, and discloses a rare earth nano-composite catalyst, a preparation method and application thereof.
本发明属于催化剂领域，公开了一种稀土纳米复合催化剂及其制备方法和应用。
The catalyst is modified by a proper amount of the rare-earth metal oxide, so the catalyst has good catalytic performance; and the preparation process has simple operation.
该催化剂经适量稀土金属氧化物改性后，具有较好的催化性能，且制备过程操作简便。
A kind of hydrocarbon-oil desulfuration agent contains, on the catalyst-weight basis, 15-60% phosphorus-modified and rare-earth-contained Y type zeolite, 10-60% inorganic oxide, and 0-75% clay;
一种降低汽油中的硫含量的脱硫剂含有以催化剂重量为基准的含稀土Y型沸石15-60重％、无机氧化物10-60重％、粘土0-75重％；
A kind of hydrocarbon-oil desulfuration agent contains, on the catalyst-weight basis, 15-60% phosphorus-modified and rare-earth-contained Y type zeolite, 10-60% inorganic oxide, and 0-75% clay;
一种降低汽油中的硫含量的脱硫剂含有以催化剂重量为基准的含稀土Y型沸石15-60重％、无机氧化物10-60重％、粘土0-75重％；
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