- 更多网络例句与链烯烃相关的网络例句 [注:此内容来源于网络,仅供参考]
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Long-chain alkene is adsorbed on the surface of catalysts much more strongly than benzene is adsorbed.
长链烯烃在催化剂上的吸附比苯要强得多。
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The influence of the amount of catalyst, reaction temperature, molar ratio of β-methylnaphthalene and olefins, reaction time and the amount of solvent has also been studied in detail.
详细考察了三氯化铝催化剂用量、反应温度、芳烯物质的量比、反应时间及溶剂用量对β-甲基萘与长链烯烃烷基化的影响。
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And selectivities of mono- alkylbenzene and mono-alkyltoluene were more than 85% and 90% respectively.
以离子液体为催化剂,采用间歇式和连续式烷基化装置,研究了C20~C28长链α烯烃和芳烃烷基化制备长链烷基苯和长链烷基甲苯的工艺。
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In addition nC〓, nC〓, two isomers of C〓 sterene and three isomers of C〓 isoprenoid hydrocarbons were also identified from aliphatic fraction of pyrolyzed product at 200℃. After pyrolyzed at 300℃, the main aliphatic hydrocarbons were normal alkanes ranged from C〓 to C〓, with C〓 as the main peak and C〓 as the second main peak. Meanwhile, pristane, phytane and C〓 sterane were also detected. In the pyrolysates at 400℃ and 500℃, the content of saturated hydrocarbons decreased, the range of normal alkanes distribution became narrow and the main peak was nC〓. Low concentration of C〓-C〓 steranes was detected and the content of C〓-C〓 increased more.
在200℃热模拟产物饱和烃馏分中除检测出两种长链烯烃外,还检测到正十九碳单烯烃、正三十五碳双烯烃、两个碳二十八甾烯的同分异构体和三个C〓类异戊二烯烷烃化合物同分异构体。300℃模拟产物饱和烃主要为正烷烃,正烷烃的碳数分布范围为C〓-C〓,以C〓为主峰、C〓为次主峰;另外,样品中还检出姥鲛烷、植烷和C〓甾烷等化合物。400和500℃热模拟产物中的饱和烃含量下降,正烷烃系列碳数分布范围变窄,主峰碳后移至C〓,检测到低浓度的C〓-C〓甾烷系列化合物,另外,C〓-C〓藿烷系列化合物含量进一步增加。
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The composition comprises: 35 to 65 wt % of an anionic detergent or surfactant selected from alkyl benzene sulphonic acids, alpha olefine sulfonates, long chain fatty acid sulphates, higher fatty acids, as well as the alkali metal and alkaline earth metal salts thereof, and natural detersive agents, and mixtures of any of these; 3 to 15 wt % of a non-ionic detergent or surfactant selected from alkoxylated alkyl phenols and alkoxylated fatty alcohols; 5 to 10 wt % of a water-swellable cellulose derivative or a salt thereof, wherein the cellulose derivative exhibits a viscosity of at least about 1500 cps, measured in a 1 % aqueous solution at 25 DEG C with a Brookfield viscometer having spindle 3, speed 30rpm, factor 40 for viscosities of 2500-3500 cps; 6 to 20 wt % of a solubility regulator selected from alkali metal and alkaline earth metal chlorides, carbonates and sulphates, aluminosilicates and starch; and 0 to 20 wt % of a fragrance or perfume in solid, liquid or microencapsulated form.
该组合物包含:a35―65%重量的阴离子洗涤剂,其选自烷基苯磺酸、α-链烯烃磺酸盐、长链脂肪酸硫酸盐、高级脂肪酸以及其碱金属和碱土金属盐和天然的去污剂,和任何这些组分的混合物;b)3―15%重量的非离子洗涤剂,选自烷氧基化烷基酚和烷氧基化脂肪醇;c)5~10%重量的水可溶涨的纤维素衍生物或它们的盐,其中纤维素衍生物按1%水溶液在25℃下用Brookfield粘度计(3号转轴,转速30rpm,2500―3500cps粘度的因子是40测定;具有粘度至少约1500cps;d)6―20%重量的溶解性调节剂,选自碱金属和碱土金属氯化物、碳酸盐和硫酸盐、硅铝酸盐和淀粉;和e)0~20%重量的为固体、液体或微囊包封形式的香精。
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Long-chain branched polyethylene was obtained using a homogeneous bianary catalyst system composed of late and early transition metal complexes,namely a mixture of bis(α-naphthalidine)-2,3-butanediimine NiBr2 and Cp* TiCl3,as catalyst precursors in the presence of MAO.
合成了一种后过渡金属镍化合物 [二- N ,N′--2 ,3-丁二亚胺镍二溴化物 ][C10H7—NC(CH3)C(CH3)N—C10H7]NiBr2,此化合物在MAO活化下催化乙烯聚合能得到含有末端双键的低分子量聚乙烯,即长链α-烯烃。
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Some aqueous catalysis systems have been applied in the industrial production of butyl aldehyde by propene hydroformylation.
其中水溶性催化剂体系已经用于丙烯氢甲酰化反应制备丁醛的工业化生产,然而,长链烯烃在含有催化剂的水相中溶解性较差,反应速率较慢。
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The characterization of the coked catalyst shows that the deactivation of catalysts is caused by a jam of bulkier molecules, which are the alkylbenzenes from both reactants and products, so the deactivation cannot be avoided.
苯与长链烯烃的烷基化反应过程中,β沸石催化剂的失活是由于产品直链烷基苯本身和原料中带入的杂质芳烃逐渐堵塞孔道、阻止了反应物分子接近活性中心引起的,是由晶内开始逐渐向外发展的。
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The progress in alkylation reaction of benzene with long chain alkenes was introduced from the two aspects of catalyst research and reaction technology.
从催化剂研究和反应技术两方面介绍了苯与长链烯烃烷基化反应技术的研究开发进展。
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The result implied that C-H wagging out-of-plane vibration was most important in classifying alkenes are cycloalkenes or chain alkenes.
实验结果表明,烯烃的C-H面外弯曲振动是分类烯烃是环烯烃或链烯烃的最重要的片段光谱。
- 更多网络解释与链烯烃相关的网络解释 [注:此内容来源于网络,仅供参考]
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alkene:烯; 链烯烃
alkane 烷; 链烷烃 | alkene 烯; 链烯烃 | alkyd resins 醇酸树脂
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alkine:链炔
alkene 烯烃 | alkine 链炔 | alkyd paint 醇酸涂料
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aromatics:芳烃
裂解原料油中各种烃,按其结构可以分为四大族,即链烷烃族、烯烃族、环烷烃族和芳香族. 这四大族的族组成以PONA值来表示,其含义如下:P-烷 烃(Paraffin)O-烯 烃(Olefin)N-环烷烃(Naphtene)A-芳 烃(Aromatics)
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olefin:烯烃
裂解原料油中各种烃,按其结构可以分为四大族,即链烷烃族、烯烃族、环烷烃族和芳香族. 这四大族的族组成以PONA值来表示,其含义如下:P-烷 烃(Paraffin)O-烯 烃(Olefin)N-环烷烃(Naphtene)A-芳 烃(Aromatics)
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alkenyl:链烯基
alkene 烯烃 | alkenyl 链烯基 | alkine 链炔
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olefine:链烯烃
olefination 烯化作用 | olefine 链烯烃 | olefinic 烯族的
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olefinic:烯族的
olefine 链烯烃 | olefinic 烯族的 | olefinozoceriteozokeriteparaffineparaffins 石蜡
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olefinic link:烯链
烯组分 olefinic constituent | 烯链 olefinic link | 烯烃热塑性弹性体 olefinic thermoplastic elastomer
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Alkenes:烯烃
结构C: sp2杂化二,异构1.构造异构--碳干异构位置异构1-丁烯 2-丁烯 2-甲基丁烯(异丁烯)2.立体异构:构型异构--顺反异构(几何异构)三,命名1.系统命名法1)选取含有双键的最长碳链作为主链.2)从主链上第六章 烯烃(alkenes)一.
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olefins:烯烃; 链烯
olefiant gas 成油气; 乙烯气 | olefins 烯烃; 链烯 | oligophotic zone 微明区