己烯

Almost 100% selectivity to cyclohexene could be obtained when the molar ratio of acetic acid to cyclohexane was 12.9∶1 at 450 ℃, the conversion of cyclohexane was 6.9%.

反应温度为450 ℃，醋酸与环己烷的摩尔比为12.9∶1时，环己烷的转化率为6.9%，环己烯的选择性为100%。

In the part of preparing HMT, the thesis did research on the preparing process of using isobutylene , 2,3-dimethyl-butene-l , 2,3-dimethyl-butene-2 as the materials respectively .

在中间体合成部分，本文分别对新己烯、2，3—二甲基—丁烯—1、2，3—二甲基—丁烯—2为原料合成HMT的工艺进行了研究，然后利用GC-MS对三种原料合成HMT的主要副产物分别进行了分析。

Exact butene, hexene and octene copolymers are a family of ethylene alpha olefin plastomers that bridge the gap between elastomers and plastics

烯烃塑性体产品系列之一，可满足介于弹性体和塑料之间的产品需求aExact丁烯、己烯和辛烯共聚物，属于乙烯

Exact butene, hexene and octene copolymers are a family of ethylene alpha olefin plastomers that bridge the gap between elastomers and plastic s

烯烃塑性体产品系列之一，可满足介于弹性体和塑料之间的产品需求aExact丁烯、己烯和辛烯共聚物，属于乙烯

This paper studied the catalytic transformation performances of hydrocarbon model compounds (such as n-Hexane,cyclohexane,1-Hexene) and sulfur-containing model compounds (such as thiophene,3-methylthiophene and benzothiophene) on ZSM-5 catalysts.

以正己烷、环己烷、1-己烯3种烃类和噻吩、3-甲基噻吩和苯并噻吩三种硫化物为模型化合物，考察了烃及含硫模型化合物在ZSM-5分子筛催化剂上的催化转化性能。

The background of developing catalytic technology for partial hydrogenation of benzene to cyclohexene and the progress in its investigation at home and abroad are introduced briefly.

简要介绍了苯部分加氢制环己烯催化技术的开发背景，国内外相关领域的研究进展，比较了不同的工艺路线，展望了环己烯的应用前景。

The preparation and characterization of a novel Ru-Zn catalyst for selective hydrogenation of benzene to cyclohexene have been carried out in this paper.

苯选择加氢制环己烯具有原子经济性和环境友好等特点，开展苯选择加氢制环己烯催化剂的研究具有重要的应用价值和一定的学术意义。

During the kraft cooking process,the temperature,effective alkali charge and time affected the pulp HexA content significantly,and the variation of sulfidity did not influence the pulp HexA content.

在硫酸盐法蒸煮过程中，蒸煮温度、有效碱用量和保温时间对纸浆己烯糖醛酸的含量均有明显的影响，而硫化度则对纸浆中己烯糖醛酸的含量影响不大。

The temperature and the addition of surfactant can accelerate conversion and selectivity of reaction. Under the conditions of 200℃、0.38MPa、0.06 mol/L、t=4h,the conversion of hexene is 86.32%.Selectivity of 2-hexene and 3-hexene is 30.46% and 57.86%.

结果表明，当表面活性剂的加入以及反应温度的升高，能明显提高反应的转化率和选择性，在200℃、0.38MPa、0.032 mol/L的反应条件下，反应4小时底物转化率为86.32%，3-己烯的选择性为57.86%，2-己烯的选择性为30.46%。

Formic acid, hexyl ester and Z-3-Hexen-1-ol were preliminarily confirmed to be the important substances for attracting woolly apple aphid, but 4-methyl-1, 3-pentadiene and Z-3-hexen-1-ol, acetate were not.

初步确定，E-3-己烯－1-醇、甲酸己酯可能是对苹果绵蚜有较强引诱作用的重要物质；4-甲基－1，3-戊二烯、乙酸叶醇酯不是引诱苹果绵蚜的物质。

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