烯烃,olefin
1)olefin[英]['?ul?fin][美]['ol?f?n]烯烃
1.Advancement on methanol-to-olefin process technology and reactor design overseas;国外甲醇制烯烃生产工艺与反应器开发现状
2.Discussion on method for reducing olefin content in gasoline with DOCO Ⅰ catalyst;用DOCO Ⅰ催化剂降低汽油烯烃含量方法探讨
3.Progress of Olefin Production Process with Natural Gas Methanol;天然气甲醇法制烯烃工艺进展
英文短句/例句

1.olefin-modified styrene-acrylonitrile烯烃改性苯乙烯-丙烯腈
2.The feed reactants can be alkadienes, cycloalkadienes.所加的反应物可以是二烯烃、环二烯烃
3.Investigation on the Synthesis of Alkenes Mediated by Phosphines and Electron-deficient Alkenes膦和贫电子烯烃促进烯烃的合成研究
4.olefin-modified styrene-acrylonitrile resin烯烃改性苯乙烯-烯腈树脂
5.The Study on Blend Modified of Polyolefine (Polypropylene, Polyethylene);聚烯烃(聚丙烯,聚乙烯)共混改性的研究
6.Synthesis of Ethylene-Vinyl Acetate-α-Olefin Copolymer乙烯-醋酸乙烯酯-α-烯烃三元共聚物
7.efin(e) polymer oil烯烃叠合合成润滑油
8.Study on the Technological Innovation of Olefine Production and the Synthesis of Olefin Sulfonate;烯烃生产工艺的改进及烯烃磺酸盐的合成研究
9.Calculating the molar volume of monoolefins and diolefins using the quantitative structure property relationship;应用QSPR方法计算单烯烃和二烯烃的摩尔体积
10.Plants are sensitive to the simple olefins, particularly C2H4.植物对简单烯烃是敏感的特别是乙烯。
11.Study on Preparation of Polystyrene/Polyolefin Alloy;聚苯乙烯(PS)/聚烯烃(PO)合金的制备
12.Copolymerization of Ethylene (Propylene) and Conjugated Dienes and Functionalization of the Copolymers;乙烯或丙烯与共轭二烯烃共聚及其功能化研究
13.A hydrocarbon was known to be either an alkene or alkane.某碳氢化合物已知可能是烯烃或是烷烃。
14.Production of Lower Alkenes and Light Oil by Oxidative Cracking of Heavy Hydrocarbons;重质烃氧化裂解制低碳烯烃和轻质油品的研究
15.Study on the Morphology and Olefin/Paraffin Permeation Properties of Metal Doped Polymeric Membranes;含金属高分子膜形态及烯烃、烷烃渗透行为研究
16.Study on Zeolite Catalysts for Removal of Trace Olefins from Aromatic Hydrocarbon;芳烃精制脱除烯烃用分子筛催化剂的研究
17.The Preparation of Hollow Fiber Composite Membrane for Olefins and Paraffins Separation;烯烃/烷烃有机气体分离中空纤维复合膜的制备
18.Calculating the molar refraction of alkane,alkene and alkadiene using the quantitative structure property relationship;应用QSPR方法计算烷烃和烯烃的摩尔折射度
相关短句/例句

alkene[英]['?lki:n][美]['?lkin]烯烃
1.Stability of immobilized AlCl_3 on γ-Al_2O_3 catalyst in alkylation of benzene with long-chain alkenes;固载化AlCl_3催化剂在苯与长链烯烃烷基化反应中的稳定性研究
2.Study on the Cis/trans-isomerism of Alkenes by Topological Approach;烯烃顺反异构的拓扑方法研究
3.Progress in direct amination of alkenes to aliphatic amines;由烯烃直接胺化合成脂肪胺的研究进展
3)olefins烯烃
1.Research development of olefins asymmetric epoxidation catalyzed bychiral Salen Mn(Ⅲ) complex;手性Salen Mn(Ⅲ)配合物催化烯烃不对称环氧化研究进展
2.Coke formation and olefins conversion in FCC naphtha olefin reformulation at low reaction temperature;FCC汽油低温改质过程的烯烃转化及催化剂积炭
3.Progress in late-transition metal catalysts for olefins and cycloolefins polymerization;后过渡金属催化烯烃以及环烯烃聚合的研究进展
4)alkenes烯烃
1.QSRR study on the chromatographic retention of alkenes;烯烃气相色谱保留指数的QSRR研究
2.Synthesis of Cross-linked Poly[styrene(iodosodiacetate)] and Its Application to Azo-arylselenenylation of Alkenes;聚苯乙烯二醋酸碘苯的合成及其在烯烃叠氮-芳硒化反应中的应用
5)olefine[英]['?ul?fin][美]['ol?f?n]烯烃
1.Technical developing hot points for future petrochemical industry:Ⅰ.Refining-chemical integration and increasing olefine production technology;未来石化工业的技术发展热点:Ⅰ.炼油-化工一体化和增产烯烃技术
2.Research progress of synthesis of acetate with acetic acid and olefine;乙酸和烯烃催化直接合成乙酸酯的研究进展
3.Discussion about Olefine and 1,4- Butanedid Manufactured from Natural Gas;关于天然气制烯烃和1,4-丁二醇的探讨
6)olefin/paraffin烯烃/烷烃
延伸阅读

烯烃烯烃alkene含碳-碳双键的不饱和烃。根据分子中双键的数目分为单烯、二烯和多烯。单烯通式为CnH2n。最简单的单烯是乙烯。在烯烃同系列中,碳链的双键位置不同也可以产生同分异构体。因此,烯烃的结构异构体的数目比含同数碳原子的烷烃为多。由于双键不能绕键轴自由旋转,当与含双键的两个碳原子相连的两个原子或基团不同时,即产生几何异构体。烯烃的命名原则与烷烃相似,复杂的按国际命名法命名,即选择含双键的最长碳链为主链,从靠近双键的一端开始编号,把侧链当作取代基,例如:烯烃的沸点与碳骼相同的烷烃,熔点略低,不溶于水,能溶于乙醇、乙醚等有机溶剂。低级烯烃(C1~C4)在工业上由天然气或石油产品热解得到;在实验室中由醇脱水或卤代烷脱卤化氢生成,例如:烯烃是最重要的有机化工原料。二烯的性质与两个双键的位置有关,最重要的一类是共轭二烯,它的两个双键被一个单键隔开,另外两类是聚积二烯和孤立二烯,例如:共轭二烯丁二烯和异戊二烯都是共轭二烯,主要用作合成橡胶的原料。适当取代的聚积二烯有手征性。共轭二烯还有独特的反应性能。一些多烯烃存在于动植物体中,并有重要的生理作用,如香叶烯存在于月桂油中,角鲨烯存在于鱼肝油中。含多个共轭双键的多烯有颜色,例如,含11个共轭双键的番茄红素为红色(见类胡萝卜素)。