查询词典 ethylene

Including high temperature for the pyrolysis of natural gas to produce carbon black and acetylene; steam reforming of natural gas or partial oxidation of natural gas, synthetic gas can be obtained; natural gas through chlorination, sulfide, nitrification, ammoniated oxide, oxidation can be obtained A N all kinds of derivatives; in the wet gas ethane, propane, butane and natural gas liquid condensate, and so on, the steam cracker or pyrolysis to produce ethylene, propylene and butadiene; dehydrogenation of butane oxidation or produce small Diene or acetic acid, methyl ethyl ketone, and maleic anhydride, and so on.

包括在高温下进行的天然气热裂解，主要生产乙炔和炭黑；天然气蒸汽转化或天然气的部分氧化，可制得合成气；天然气经过氯化、硫化、硝化、氨化氧化、氧化可制得甲烷的各种衍生物；湿性天然气中的乙烷、丙烷、丁烷和天然气凝析液等，经蒸汽裂解或热裂解可生产乙烯、丙烯和丁二烯；丁烷脱氢或氧化可生产丁二烯或醋酸、甲基乙基酮、顺丁烯二酸酐等。

The development status of technology of dichloroethane by ethylene chlorinated process were introduced.

介绍了乙烯直接氯化到二氯乙烷的技术进展情况，对比了液相法中的低温、中温、高温的技术特点。

The coking and deactivation process of benzene and ethylene alkylation reaction over AB-97 zeolite has been studied systematically. The results of acceleration deactivation reaction indicate that deactivation process go through three phases, high level activity stability period, activity decline period and low level activity stability period. The mechanism of this phenomenon was analyzed by the way of the experiment research of pore structure and acid quality of coked zeolite. It is concluded that reducing the strong acid active centers and crystal outer-surface active centers are benefit to improve the activity stability of zeolite.

在AB-97型分子筛催化剂上对苯/乙烯烷基化制乙苯反应体系的结焦失活历程系统实验研究，催速失活实验结果表明失活历程经历高水平活性稳定期，活性衰退期和低水平活性稳定期三个阶段，并通过对失活催化剂的孔结构及酸性质的实验研究，对这一现象进行了机理分析，认为催化剂改性研究中采用降低强酸活性位和晶粒表面活性位这两种手段都有利于改善催化剂的活性稳定性。

EMA is Monsanto's trademark for a series of white, odorless, freeflowing resins made by copolymerizing one mole of ethylene with one mole of maleic anhydride.

EMA 是蒙山都公司生产的一组树脂的商标，这些树脂白色、味、动性好，是经1克分子马来酐聚合而成的。

The catalyst combined with MAO or Al(i-Bu_3, AlEt_3 to form copolymerization active species, which was responsible for copolymerizing the ethylene andα-olefins to prepare branched polyethylene.

二酮锆/MAO Al(i-Bu_3、AlEt_3可以形成乙烯与α-烯烃的共聚活性中心，催化乙烯与特定链长的α-烯烃共聚得到了支化聚乙烯。

The PS-b-PNIPAM-b-PDMA and PS-b-PDMA-b- PNIPAM triblock copolymers can self-assemble into PS-core micelles, which possess a three layer \'onion-like\' structure, with PDMA and PNIPAM blocks forming the inner layers or outer coronas. Using above measurements, we can concluded that PS-b-PNIPAM-b-PDMA triblock copolymer micelles have the double phase transition behavior, while PS-b-PDMA-b-PNIPAM have only one phase transition behavior.2. We synthesized poly(ethylene glycol-b-methacrylic acid)diblock copolymers with three different polymerization degree of PMAA blocks.

但是对于PS-b-PDMA-b-PNIPAM胶束，由于中间亲水嵌段的作用，使PNIPAM的相转变温度提高，且PDMA由于靠近PS内核以及随着外壳PNIPAM的水溶性变差其相转变点降低，因此我们只能看到一个转变过程。2、通过原子转移自由基聚合，我们合成了三种不同PtBMA长度的PEG-b-PtBMA二嵌段聚合物，将叔丁基水解后得到了三种PEG-b-PMAA二嵌段聚合物。

Ethylene decompounded from light hydrocarbon is a base raw material of synthetic organic product, which can be used to made hundreds of synthetic material, and it is the most output intermediate product in the world.

从天然气中回收的轻烃分解出来的乙烯是有机合成产品的基础原料，可以生产数百种合成材料，是世界上产量最多的化工中间产品。

Whilst other brands use mechanical or hand cleaning methods to clean the cartilage which can result in a high flesh-protein content in their final product (which in turn requires strong chemicals and bleaches to sterilize it, disguise its greyer colour and fishier smell), LaneLabs uses a unique series of enzyme baths to clean the cartilage without involving toxic chemicals, radiation or ethylene oxide.

虽然其他品牌采用机械或手工清洗方法，清洗软骨，可以造成很高的肉，蛋白质含量在其最终产品（而这又需要强大的化学品和漂白剂消毒它，掩盖其更灰色的颜色和fishier气味），LaneLabs采用独特的一系列酶浴清理软骨不涉及有毒化学品，辐射或环氧乙烷。

Lithium perfluoroalkylphosphonate was synthesized by LiF and perfluoroalkylphosphonate acid obtained by electrochemically fluorinating chlorodiisopropylphosphine. Some properties of a kind of electrolyte that was made from dissolving the lithium perfluoroalkylphosphonate in the mixed solvent with ethylene carbonate and dimethyl carbonate mass ratio 1∶1 were investigated, such as conductivity, stability toward hydrolysis and oxidative decomposition potential, and so on.

选取氯代二异丙基膦(C6H14PCl)为原料，利用电化学氟化方法，得到全氟烷基膦酸[(C3F7)2PF3]，(C3F7)2PF3与氟化锂反应得到全氟烷基膦酸锂Li[(C3F72PF4]，将其溶于碳酸乙烯酯和碳酸二甲酯质量比为1∶1的混合溶剂中得到电解液，考察电解液的电导率、抗水性及氧化分解电位。

The ethylene glycol plays an important role in gelling process and it makes the organic-gel decomposed in several steps.

乙二醇在胶凝过程中起到重要的促进作用，使干凝胶粉分步分解。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。