查询词典 butene

The photocycloaddn. of 1-naphthonitrile (1-NpCN) and 2,3-dimethyl-2-butene in cyclohexane or benzene gave cyclobutane I primarily, but that of 2-NpCN gave azetine II as the major and cyclobutane III as the minor product in low conversion photolysis. The photocycloaddn. of 1-NpCN with DMB is retarded by increasing amts. of trifluoroacetic acid which is shown to form non-photoreactive complexes with ground state as well as with singlet excited state 1-NpCN. It also quenches the *(1-NpCN-DMB) exciplex.

在低转光解情况下，1-萘甲腈(1-NpCN)和2，3-二甲基丁烯-2在环已烷或苯中的光环加成反应主要得到环丁烷3，但2-NpCN主要得到氨杂环丁烯6和少量的环丁烷5，三氟醋酸量增加抑制1-NpCN和DMB的光环加成反应，表明TFA与基态及单激发态1-NpCN生成非光反应的复合物，它也淬灭^*(1-NpCN-DMB)激基复合物。

HMT general synthesis is aluminum chloride as a catalyst, isopropyl - toluene right with the new hexene, or 2 January 2 3 1 2 1-butene six-olefins reaction.

HMT的合成一般是以三氯化铝为催化剂，由对异丙基甲苯与新己烯、或2，3一二甲基一2一丁烯等六碳烯烃反应生成。

Have unit of 6 main production; Produce per year device of device of 130 Kt butadiene styrene rubber, 38 Kt butadiene rubber, 56 Kt and device of extraction of 53 Kt butadiene each one, device of aether of butyl of 40 Kt methylic father's younger brother, 15 Kt 1 - butene device.

现有 6套主要生产装置；年产 130 kt丁苯橡胶装置、 38 kt顺丁橡胶装置、 56 kt和 53 kt丁二烯抽提装置各一套、 40 kt甲基叔丁基醚装置、 15 kt 1－丁烯装置。

Use the method that the article determines to authority is worth, methylic to synthesis acrylic acid the course of two kinds of chemical industry of armour ester, namely different butene law (I-C4) and propylene law (C3) undertook green spends evaluation and analysis, make clear I-C4 law course more green.

采用本文确定权值的方法，对合成甲基丙烯酸甲酯的两种化工路线，即异丁烯法(i-C4)和丙烯法(C3)进行了绿色度评价和分析，表明i-C4法路线更为绿色。

This dissertation concentrated on its low-cost synthesis, adjusting of silica to alumina molar ratio and catalytic applications in olefinic alkylation of thiophenic sulfur of simulated FCC gasoline and aromatization of butene in liquefied-petroleum-gas process.

本论文旨在降低MCM-22合成成本，获得硅铝比范围宽泛可调的MCM-22，并拓展其在烯烃烷基化脱硫与液化气丁烯芳构化方面的应用。

In the process of extractive distillation o f butadiene,thequality of the byproduct butane-butene raffinate are rel ated to many process para meters, which are coupling and with noises.

丁二烯萃取精馏过程中，副产品抽余液的质量和很多工艺参数有关，工艺参数之间又是相互关联、耦合的，并具有噪声。

Through concretely analysis for 1-Butene transported by highway, we combinedthe theory and method about the safety management for dangerous goods with practice and provided theoreticaldec isio n-ma king for saf ety m anag emen t of dan gerou s go ods tran spor tati on.

本文运用风险分析的方法，对危险品公路运输事故和灾害风险进行定量研究，给出危险品公路运输的社会风险和个人风险，从而对公路运输风险进行评价。

When heated above 300℃, compound 1 decomposes, forming Ir, 2, 4-pentanedione, 3-butene-2-one and 2, 5-dimethyl furan etc. in argon. When compound 1 decomposed in oxygen, fewer kind of thermolytic pmducts can be obtained.

三（2，4-戊二酮）合铱在氧气气氛下由於能够比较充分地氧化，因而分解产物种类比在惰性气氛下由於自身分解而生成的产物种类少并且稳定。

The mass fraction of n-butene in mixed C4 from catalytic cracking after etherized was approximately 40%.

醚化后的催化裂化混合C4中含有质量分数约为40%的正丁烯，是生产丙烯的优质原料。

High isotactic poly-1-butene was synthesized with supported titanium catalyst system, compared the affect of two kinds of external donors to the polymer's structure and properties.

采用Z-N催化剂催化1-丁烯聚合合成高全同含量聚1-丁烯，比较了2种外给电子体对所得聚合物结构和性能的影响。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。