查询词典 isobutylene

This item plans to construct 5 thousand t/y Tert - butylamine production equipment which uses internally developed independently isobutene cyanide process for the production of raw materials for pure isobutylene, purity of 99.5% of the domestic production of tert - butylamine.

拟建设5000吨/年叔丁胺生产装置。该装置采用国内自主开发的异丁烯氰化法生产工艺，以纯异丁烯为原料，生产纯度为99.5％的叔丁胺产品。

The current situation of utilizing isobutane and isobutylene in China were introduced, the reaction mechanism, reaction process and types of catalyst for preparing isobutylene via dehydrogenation of isobutane were narrated emphatically.

介绍我国异丁烷和异丁烯资源的利用现状，重点对异丁烷脱氢制备异丁烯的反应机理、反应流程和催化剂类型进行了论述。

Effects of reaction temperature, volume ratio of water to isobutylene and linear flowrate of C4 raffinate on activity of the catalyst were studied.

考察了反应温度、水油体积比和抽余C4烃的流速等对异丁烯转化率的影响。

For example: isobutylene react with each other produce dimer.

对催化剂SO_4~(2-)/ZrO_2来说较好的反应条件是150℃，7MPa。

The installation process using slurry line, the introduction of foreign advanced technology, high purity isobutylene and isoprene as raw materials.

该装置采用淤浆法工艺路线，引进国外先进工艺技术，以高纯度的异丁烯和异戊二烯为原料。

Selective oxidation of isobutylene to methacrolein is a key step in the production of methyl methacrylate from isobutylene.

异丁烯选择氧化制备甲基丙烯醛是异丁烯法制备甲基丙烯酸甲酯的关键步骤。

The experimental results showed that: the adsorption of methanol and isobutylene conform to Elovich equation. The adsorption quantity of methanol was bigger than that of isobutylene, but the adsorption rate was slower.

采用过渡应答技术对甲醇和异丁烯在改性b分子筛上的吸附行为进行了研究，研究结果表明：异丁烯和甲醇在改性b分子筛上符合先快吸附后慢吸附的Elovich吸附规律。

Through mechanism analyzing on the process of producing HMT , it was known that because the resistance of isobutylene was small ,the yield of outgrowth in such a reaction system was little and the yield of reaction was as high as 86%. 2,3-dimethyI-butene-2 had the biggest resistance and lowest yield of reaction of 18%. 2,3-dimethyl-butene-l had bigger resistance than isobutylene and more outgrowth than isobutyles but its yield of reaction could reach 70%.

通过对上述三种烯烃合成HMT的研究可知，由于新己烯位阻小，反应中副反应少，收率高达86％：而2，3—二甲基—丁烯—2的位阻最大，反应中副反应最多，反应收率最高仅为18％；2，3—二甲基—丁烯—1的位阻比新己烯大，反应副产物比新己烯多，但反应收率仍可达70％。

The behaviors of methanol and isobutylene adsorbed over a modified-b zeolite catalyst were studied by the transient response method in a chromatogram-reactor. The experimental results showed that: the adsorption of methanol and isobutylene conform to Elovich equation.

摘 要：采用过渡应答技术对甲醇和异丁烯在改性b分子筛上的吸附行为进行了研究，研究结果表明：异丁烯和甲醇在改性b分子筛上符合先快吸附后慢吸附的Elovich吸附规律。

Kinetics of isobutylene hydration reaction catalyzed by fine powder of NKC-9 ion exchange resin,and effects of catalyst concentration,temperature,pressure,stirring rate and isobutylene concentration on reaction were studied in a semibatch reactor.

采用半连续反应过程，使用NKC -9离子交换树脂细粉，改变催化剂浓度、反应温度、反应压力、搅拌转速和异丁烯浓度等条件，对异丁烯水合反应动力学进行了实验研究。

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。