丁二酰

Acenaphthene was dehydrogenated to afford acenaphthylene by photochemical reaction with N bromosuccinimide in benzene with the addition of quinoline at room temperature and atmospheric pressure was studied.

在常温常压下，以苯作为溶剂，加入喹啉，使苊与N－溴代丁二酰亚胺发生光化学脱氢反应生成苊烯。

Totally two formulas are designed,one using four compositions and the other including five,while butadiene imide emulsifier is applied by both of the formulas.

该系列乳化炸药包括SEM－4型四组分和SEM－5五组分两种产品，二者均采用一种以丁二酰亚胺为主要成分的高分子复合乳化剂。

Interactions between zinc dialkydithiosphate and succcinimide dispersants synthesized by different feeds and processes were investigated through changes in solutions behaviors, as determined by viscometry, infrared spectrometer, mass spectrometry and chemical analysis.

借助红外光谱、紫外光谱、粘度、浊度等分析测试方法，考察了用不同的原料和工艺合成的丁二酰亚胺无灰分散剂与 ZDDP 的相互作用。

The results showed that the ashless dispersant prepared had low temperature dispersivity.

结果表明，本实验合成获得的聚异丁烯丁二酰亚胺无灰分散剂产品具有低温分散性能。

Low temperature dispersivity of ashless dispersant TEPA was analyzed by the sludge spot distribution test.

以油泥斑点分散试验法对合成产物聚异丁烯丁二酰亚胺无灰分散剂进行低温分散性能测试。

The emission amount of tail gas in polyisobutylene succinimide production is very large,and the concentration of oil in the recovered chlorhydric acid by absorption is too high to sell.

针对聚异丁烯丁二酰亚胺生产工艺中废气排放量大、尾气吸收得到的盐酸含油量高、难以销售等问题，在分析原因的基础上，对尾气吸收系统进行了技术改进。

An improved process for producing polyisobutylene succinimide used in emulsion explosive was introduced.

介绍了一种经过改进的乳化炸药用聚异丁烯丁二酰亚胺的生产工艺。

A high molecular weight polyisobutenyl succinimide dispersant with high nitrogen content and good thermal and oxidative stabilities was developed.

采用氯化烃化工艺和后偶联反应技术开发了一种氮含量高、热稳定性和氧化稳定性好的高相对分子质量的聚异丁烯基丁二酰亚胺分散剂。

Zinc dialkyldithiophosphate succinimide friction reduction and antiwear performances synergistic effect adverse effect

中文关键词：二烷基二硫代磷酸锌，丁二酰亚胺，减摩抗磨性能，协同效应，对抗效应

Chlorine atoms were selectively introduced into the chlorin ring based on different reactivity between vinyl group at 3-position and 20-meso position by electrophilic addition and electrophilic substitution using hydrogen peroxide/hydrochloric acid, N-chlorosuccinimide, hydrogen chloride (or concentrated hydrochloric acid) as chlorinating reagent.

以过氧化氢/盐酸、N-氯代丁二酰亚胺、氯化氢为氯化剂，根据3-乙烯基和20-meso-位的不同化学反应活性，通过亲电加成和亲电取代反应，在二氢卟吩环上选择性地引进氯原子，完成8种未见报道的具有叶绿素-a基本碳架的氯代二氢卟吩衍生物的合成。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。