丙烷

However,using THEIC initiator,the reaction rate for epichlorohydrin is faster than that of propylene oxide and 2-butoxyxirane,respectively.

在THEIC体系,就链引发而言,环氧氯丙大于环氧丙、丁基醚环氧乙。

So some renovations should be made,for example,increasing the solvent ratio of propane deasphalting;using hydrofinishing instead of clay treating;mo...

增加丙脱沥青溶剂比,用加氢补充精制代替白土精制等,此外,在含硫原油产基础油时,对原油也应适当选择。

General approaches involve the nucleophilic cycloalkylation, carbenoids addition of certain amino acid derivatives and derivatization from simple cyclopropane compounds.

制备方法包括对简单氨基酸亲核环基、类卡宾加成以及简单环丙成等。

This paper contains two parts: (1) Trisubstituted Cyclopropane and FluorinatedAlkynone; (2) Phosphate Ester and Phosphonyl Compounds.

(1)三取代环丙和含氟炔酮;(2)膦酸酯和膦酰。

It is proved effective that deep well aeration biological treat propylene technology is used to treat propylene epoxide saponated sewage.

实践证明,深井曝气处理技术处理环氧丙皂污水是行之有效。

Calcium ammine catalyst was prepared with metal calcium,dehydrated liquid ammonia as raw materials,nano-silica as a carrier and acetonitrile and propylene epoxide as modifiers.

采用金属钙、脱水液氨、载体纳米二氧硅及改性剂乙腈与环氧丙制备出氨钙体系催剂。

Flame retardant vinyl ester resin using tetrabromo bisphenol A, epichlorohydrin, acrylic acid as raw materials was also synthesized, Its flame retardant property was excellent.

用四溴双酚A、环氧氯丙和丙烯酸为原料成了阻燃型乙烯基酯树脂，其阻燃性能良好。

In this paper, the new chelating resin (PSIM) with a polythioether backbone bearing imidazole group is first synthesized by the reaction between polychloromethylthiirane and imidazole.

通过聚环硫氯丙与咪唑进行高分子反应，成了以聚硫醚为主链、侧链带有咪唑基团螯树脂（简称PSIM）。

Depropanization is a procedure in the separation section of ethylene production and its effect is to separate component C3 from component C4 and C4 above.

脱丙是乙烯产过程中分离工段一个工艺步骤,其目是将C_3和C_4以上组分分离。

Moreover, we found that N-heterocyclic carbene (NHC) could served as an efficient and novel catalyst for the reactions of aziridines with silylated nucleophiles or acid anhydrides.

随后，我们发现氮杂环卡宾也可以作为一种有机小分子催剂，分别催各类硅试剂或酸酐对氮杂环丙开环。

A divided flow cell is used for electrolysis of NaBr aqueous solution.The anolyte containing Br 2 and catholyte containing NaOH are produced simultaneously and in turn to epoxide HFP to HFPO.

在由离子膜分隔电解槽中电解溴钠溶液,所产含溴阳极液和碱性阴极液,分别是由全氟丙烯成全氟环氧丙环氧剂和皂剂。