环丙烷

Propylene oxide is an important chemical intermediate. At present, the industrial production of PO includes mainly Chlorohydrin process and Halcon process.

环氧丙烷是一种重要的工业原料，目前工业上生产环氧丙烷的方法主要有两种：氯醇法和Halcon法。

The further development of conventional industrial processes of propylene oxide using the chlorohydrin route or oxirane technology is limited due to environmental pollution and its high production cost,so that the demand of exploring novel,economical and clean technologies for PO production becomes important.

环氧丙烷传统的工业生产方法如氯醇法路线或共氧化技术由于环境污染或成本较高等原因阻碍了其进一步发展，开发既清洁又经济的绿色合成技术是环氧丙烷工业今后的发展方向。

The PECH obtained can be used to prepare energetic azide binders with top quality.

采用乳液双金属氰化物络合物代替Lewis酸类作为催化剂，使环氧氯丙烷开环聚合，制得相对分子质量较高及分子质量分布较窄的聚环氧氯丙烷，这种PECH可用于高质量的含能叠氮粘合剂中。

The results showed that hydrogen peroxide, silanols species and TiO〓 didn't have solvolysis activity of propylene oxide. While framework Al, coordinatively unsaturated Ti〓 ions as Lewis acid sites in the framework, Ti-OH and the five member ring active titanium species formed by TS-1, hydrogen peroxide and solvent can catalyze the solvolysis of propylene oxide.

研究结果表明：原料双氧水和TS-1沸石上的SiOH和TiO〓对环氧丙烷溶剂解反应无催化活性；而下列物种对环氧丙烷溶剂解反应具有催化活性：TS-1中的骨架铝，沸石骨架中配位不饱和的Ti〓形成的L酸中心，TS-1水解产生的钛羟基和由TS-1，双氧水和溶剂相互作用所生成的五元环中间活性钛物种。

The preparation of grafted derivant of tertiary amine: it is prepared by the reacting of above (1) product and (2) product heated in water bath at 40℃ within 10min.

聚环氧氯丙烷乙二醇哌啶接支衍生物的制备：将上面制备的聚环氧氯丙烷乙二醇与0.25mol环氧丙基哌啶叔胺于40℃水浴条件下进行接支反应。

Initially, we studied the ring opening of various epoxides such as styrene oxide, propylene oxide, epichlorohydrin and cyclohexene oxide with pyrazole and excellent results were obtained.

最初，我们研究了开环的各种氧化物，如环氧苯乙烷，环氧丙烷，环氧氯丙烷和环氧环己烷与吡唑和优异的成绩获得。

It deliberated that magnesium sulphate and epichlorohydrin affecting on synthetization of starch xanthate, mass ratio of synthetic starch xanthate and Magnesium sulphate was 8: 1, Mass ratio of synthetic starch xanthate and epichlorohydrin was 10 : 1, Magnesium sulphate and epichlorohydrin didn't affect sulphonating extent of synthetic starch xanthate, but did enhance cross extent and nature of insoluble.

研究了MgSO_4和环氧氯丙烷对DX合成的影响，得出淀粉和MgSO_4的重量比为8：1，淀粉和环氧氯丙烷的重量比为10：1，MgSO_4和环氧氯丙烷对黄原酸化程度没有影响，但能增强交联程度和不溶性。

It deliberated that magnesium sulphate and epichlorohydrin affecting on synthetization of starch xanthate, mass ratio of synthetic starch xanthate and Magnesium sulphate was 8: 1, Mass ratio of synthetic starch xanthate and epichlorohydrin was 10 : 1, Magnesium sulphate and epichlorohydrin didnt affect sulphonating extent of synthetic starch xanthate, but did enhance cross extent and nature of insoluble.

研究了MgSO_4和环氧氯丙烷对DX合成的影响，得出淀粉和MgSO_4的重量比为8：1，淀粉和环氧氯丙烷的重量比为10：1，MgSO_4和环氧氯丙烷对黄原酸化程度没有影响，但能增强交联程度和不溶性。

The ring-open nitration of propylene oxide compounds was investigated using dinitrogen pentoxide as nitrating agent.

并以N2O5为硝化剂考察了环氧丙烷类化合物开环硝化过程，探讨了取代基的电子效应和立体效应对环氧丙烷类化合物开环硝化过程的影响规律。

These catalysts were employed in the HKR of epichlorohydrin, styrene oxide and phenyl glycidyl ether.

研究了其对环氧苯乙烷、环氧氯丙烷以及苯氧基环氧丙烷等的水解动力学拆分的催化作用。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。