环丙烷

It was found that the catalytic activities of HZSM-5 sample (ZS540.2) steaming at 540℃ latm for 2hr to condensation reaction and etherization of propylene oxide were enhanced.

发现了适度水热处理HZSM-5应用于缩醛和环氧丙烷醚化等-系列反应后得到的催化活性增强现象。

Coking and deactivation of zeolite catalysts in the synthesis of propylene glycol ethyl ether from propylene oxide and ethanol at lower reaction temperature were studied in this thesis.

本文选择反应物与生成物都含有氧原子的自环氧丙烷和乙醇合成丙二醇乙醚作为典型反应，研究较低温度下在沸石催化剂上反应过程中的的积炭失活规律。

Held Tianjin ethylene, Shandong Lunan fertilizer plant researchers pressurized gasification and Phase II expansion project, Beijing Dongfang chemical acrylic acid and esters, Jinxi Chemical Plant ethylene propane series, 40 engineering and engineering technology to national, provincial and municipal incentives to the industry.

先后有天津乙烯、山东鲁南化肥厂水煤浆加压气化及二期扩建工程、北京东方化工厂丙烯酸及酯、锦西化工总厂环氧丙烷系列工程等40多项工程和技术获得国家、行业和省市级奖励。

According to process technology index, the epichlorophydrin production by glycerol has much better market competitive power.

工艺技术指标的结果显示甘油生产环氧氯丙烷路线具有较大的市场竞争力。

The synthesis of guaifenesin was improved by direct application of the hydrolyzate of epichlorohydrin for the etherification with guaiacol and using toluene and ethyl acetate as the solvents for crystallization and recrystallization, respectively.

通过直接利用环氧氯丙烷的水解液中的 3-氯- 1，2 -丙二醇和改良成品析晶法及重结晶溶剂等工艺改进，愈创甘油醚的总收率可达 80 %。

Epoxy propane is a basic material for petro-chemical industry, and it is the third derivative of Propylene except for Polypropylene and propylene nitrile.

环氧丙烷是重要的石油化工基础原料，在丙稀的重要衍生物中是仅次于聚丙烯和丙烯腈的第三大品种。

Based on the mechanism of coupling reaction,the reaction of melt metallocene-based Poly(Ethylene-α-Octene) initiated by dicumyl peroxide was studied at elevated temperature in oscillatory shear flow field.

以苯胺、环氧丙烷为原料制备了N，N 二(2 羟丙基)苯胺，然后NHPPA与对硝基苯胺通过重氮偶合反应制备了一种具有推拉电子结构的偶氮化合物4 硝基 4′ N，N 二(2 羟丙基)氨基偶氮苯。

A new flame retardant was synthesized with epichlorohydrin and phosphorus oxychloride and urea as raw materials.

采用环氧氯丙烷、三氯氧磷及尿素等为原料，合成了一种新型阻燃剂。

The hydroxy value of hydroxy-terminated polyepichlorohydrin is a very important index which influences many properties of PECH.

端羟基聚环氧氯丙烷的羟值是影响其性质的重要指标。

The invention relates to a silver polyethylene perchloride external anticorrosive coating and the making method thereof, adding polyethylene perchloride resin into mixed solvent of dimethylbenzene and butyl acetate, then adding in epoxy resin, chlorinated paraffin, epoxy chloropropane, polyacrylate copolymer solution, polymethyl alkyl siloxane solution, polyamide wax, and aluminum silver pulp, blending and grinding to make it.

本发明涉及一种银色高氯化聚乙烯外防腐涂料及制造方法，是将高氯化聚乙烯树脂加入二甲苯和醋酸丁酯的混合溶剂中，再加入环氧树脂、氯化石蜡、环氧氯丙烷、聚丙烯酸酯共聚体溶液、聚甲基烷基硅氧烷溶液、聚酰胺蜡、铝银浆经混合、搅拌、研磨制成银色高氯化聚乙烯外防腐涂料，可用于储罐、化工设备、钢架、桥梁、集装箱的外防腐蚀。

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。