查询词典 butadiene

During the reaction of alkylation, general contained 0.2%~2.0% butadiene will produce viscous heavy composite materials, which will raise final boiling point of alkylate and decrease octane, what is more, it will react with acid to produce corresponding ester, which will increase the consumption of acid, Therefore, we must remove butadiene by selective hydrogenation, at the same time, it will convert some of 1- butane to 2- butane by isomerization and raise octane of alkylate.

一般含有0.2%~2.0%的丁二烯，其在烷基化反应中，可生成一种分子量很高的粘稠重质迭合物，使烷基化油的干点升高，辛烷值降低，并且它还和酸反应生成相应的酯而加大酸耗量。因此必须经过选择性加氢除掉丁二烯，同时，将部分1-丁烯异构化为2-丁烯，以提高烷基化油的辛烷值。

Thesis of 1,3 - butadiene of physical and chemical properties, uses and production methods were introduced on the 1,3 - butadiene market are analyzed.

论文对1，3-丁二烯的物理化学性质、用途以及生产方法进行了介绍，对1，3-丁二烯的市场行情进行了分析。

Which is the biggest production of styrene butadiene rubber, synthetic rubber accounts for about 50%, followed by about 15% of butadiene rubber, these are general-purpose rubber.

其中产量最大的是丁苯橡胶，约占合成橡胶的50％，其次是顺丁橡胶约占15％，这些都是通用橡胶。

Tatsu varieties is the production and operation of 12 major categories of more than 50 varieties, mainly for rubber-filled Products oil, aromatic oil, paraffin oil, naphthene oil series Products, Product, respectively, applied to natural rubber, styrene-butadiene rubber products, butadiene rubber, EPDM ethylene-propylene rubber and the oil-filled elastomer SBS and footwear industries in the TPR pellet production, and also applies to styrene-butadiene rubber, chloroprene rubber and processing of oil-filled, annual production capacity of 15,000 tons.

现生产经营品种达12大类50多个品种，主要产品为橡胶填充油、芳烃油、石蜡油、环烷油等系列产品，产品分别适用于天然橡胶制品、丁苯橡胶制品、，顺丁橡胶制品、三元乙丙橡胶乙丙橡胶及弹性体SBS的充油和制鞋工业中的TPR粒料生产，也适用于丁苯橡胶、氯丁橡胶充油及加工，年生产能力达15000吨。

The effects of varied impact modifiers including similar styrene elastomer, acrylnitrile-butadiene-styrene copolymerwith high content of polybutylene,ethylene- octene copolymer,butylene-styrene elastomer,styrene-butadiene-styrene elastomer,styrene/ethylene/butadiene/styrene block copolymeron the properties of su- per-toughened HIPS were investigated.

以高抗冲聚苯乙烯为基体树脂，采用双螺杆挤出机研究了不同抗冲击改性剂类苯乙烯弹性体、丙烯腈-丁二烯-苯乙烯共聚物高胶粉、聚烯烃弹性体、丁苯弹性体、苯乙烯-丁二烯-苯乙烯弹性体和苯乙烯-乙烯／丁二烯-苯乙烯共聚物对HIPS的增韧效果。

Acrylonitrile-butadiene-styrene/polybutylene blend alloys was prepared, in which RC was used as compatibilizer and butadiene-nitrile rubber as toughener.

以ABS、PBT为基体树脂，RC为增容剂，NBR为增韧改性剂，并加入其它助剂，制备了ABS/PBT共混合金。

Butadiene was polymerized to some extent in the presence of binary catalyst system NdCl33iPrOHAlEt3 in toluene and the allylchloride was then added to the solution in order to cyclize the formed polybutadiene and cyclopolymerize the unreacted butadiene monomers.

采用NdCl3·3i－PrOH－AlEt3稀土催化剂进行丁二烯的顺式聚合，在聚合过程中引入烯丙基氯，进行分子内环化反应以及单体的环聚反应。

Butadiene was polymerized to some extent in the presence of binary catalyst system NdCl33iPrOHAlEt3 in toluene and the allylchloride was then added to the solution in order to cyclize the formed polybutadiene and cyclopolymerize the unreacted butadiene monomers.

采用NdCl3·3i－PrOH－AlEt3稀土催化剂进行丁二烯的顺式聚合，在聚合过程中引入烯丙基氯，进行分子内环化反应以及单体的环聚反应。考察了稀土催化剂用量、n／n（AlEt3）、环化时间、反应温度、单体浓度等对环化反应的影响，并对产物进行了红外光谱、核磁共振光谱的表

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。

Main product has: SBR of butadiene styrene rubber - 1500, SBR - 1502, SBR - 1712, butadiene rubber BR - 9000, BR - 9073 with 6 ＃ solvent naphtha, 120 ＃ industrial aether of butyl of solvent naphtha, methylic father's younger brother, 1 - Ding Xi.

主要产品有：丁苯橡胶 SBR－ 1500、 SBR－ 1502、 SBR－ 1712，顺丁橡胶 BR－ 9000、 BR－ 9073和 6＃溶剂油、 120＃工业用溶剂油、甲基叔丁基醚、 1－丁烯。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。