烯烃

The present invention is one kind of supported olefin polymerizing catalyst of metallocene and post-transition metal and its reaction process of catalyzing ethylene polymerization.

本发明是关于一种负载化茂金属和后过渡金属烯烃聚合催化剂及其制备方法，以及其催化乙烯聚合的反应工艺。

It was found that the load carrying capacity of Ni P brush plating layer was increased obviously and the wear rates of Ni P and Ni Cu P brush plating layers were decreased very much with the addition of sulfurized olefin in lubricating oil.

结果表明，在基础油液体石蜡中添加适量的硫化烯烃润滑时，Ni－P镀层的承载能力显著提高，Ni－P镀层和Ni－Cu－P镀层的磨损率都明显降低。

Indicate that using mixed olefin and sulfur with high-pressure to prepare the organic sulfurizing agent and using ex-situ presulfurization, is the important direction in presulfurization field.

提出采用高压法以混合烯烃和硫为原料制备有机硫化剂，进行器外预硫化，是今后预硫化领域发展的重要方向。

In this thesis, it is summarized that the current research on the thermodynamics analysis, the catalyst, the reaction mechanism, the kinetics of the carbon dioxide hydrogenation to light olefins.

本文对CO2加氢合成低碳烯烃反应体系热力学分析、催化剂开发、反应机理和动力学等方面的研究进行了综述。

It had already been used in preparing the immobilized catalyst for heterogeneous hydrogenation of olefins,[17] in desulfurization of simulated flue gas,[18] and particularly in the reactions between aldehydes or acetones and the compounds with active hydrogen, such as Henry reaction[19] and direct aldol reaction.

16它已被用于制备烯烃非均相加氢反应的固定相催化剂，[17]烟气脱硫，[18]并且特别地被用于醛或酮和含活泼氢的化合物之间的反应，例如Henry反应[19]和直接羟醛缩合。

So it is very necessary to study the characters and extend applications of this kind of alkenes with electron-donating substituents.

因此，深入研究具有供电子基团的活化烯烃的各种性质，扩展它们在各个领域的应用具有十分重要的意义。

Epoxidation of alkenes is one of the most important reactions in organic, synthesis.

烯烃环氧化在有机合成中占有十分重要的地位。

Light alkenes play a significant role in the petrochemical industry.

低碳烯烃在石化工业中起着举足轻重的作用。

In the first part, Co-containing zeolites and MCM-41 have been studied for the epoxidation of alkenes.

第一部分研究了位于分子筛中的Co~(2+)或高分散的single-site Co在烯烃环氧化反应中的催化性能。

This thesis includes two parts. The first part is study on hydroformylation of alkenes in ionic liquid-H2O system.

本论文分两部分：咪唑离子液体—水体系中的烯烃氢甲酰化反应研究和新型咪唑类手性季铵盐的合成。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新