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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. 长链烷基苯是合成洗涤剂的重要原料,是由苯与长链烯烃在酸性催化剂作用下烷基化反应生成的。
- All the above research has established certain basis for improving the activity stability of catalyst in the alkylation of benzene with long chain alkenes. 这些为提高烷基化催化剂活性稳定性的进一步研究奠定了一定的基础。
- Study on the regeneration ability of zeolite catalyst for the alkylation of benzene with long chain alkene 长链烯烃与苯烷基化分子筛催化剂再生性能研究
- Buckets rise on a long chain from the well, and the water is tipped out into irrigation channels. 吊桶随着长长的链条升出井口，所盛的水被倾入灌溉渠内。
- This fabulous event formed but a link in a long chain of marvels. 这件事看来尽管似乎荒诞无稽，但线索极多。
- An idealized model of a string is a single long chain of molecules. 绳子的理想模型是一长串单个分子的系列。
- After a long chain of contacts, they finally found out the truth. 经过多次联系,他们终于查明真相。
- long chain alkenes 长链烯烃
- Our vegetables, however, come to us through a long chain of command. 然而,我们的蔬菜是经过一个长长的控制环节才供应到我们手中。
- ZrPAl Solid Acid Catalyst on Benzene Wiuh Long - Chain Alkene 苯与直链烯烃烷基化的锆磷铝固体酸催化剂
- Poly(ethylene glycol) (PEG) is a hydrophilic polymer which has flexible long chain. 摘要聚乙二醇是一类亲水性长链聚合物。
- Polypropylene is the second resin in the family of polyolefin composed of long chain saturated hydrocarbons. 聚丙烯是含有长链饱和烃的聚烯烃系列中第二个树脂。
- Buckets rise on a long chain from the well,and the water is tipped out into irrigation channels. 吊桶随着长长的链条升出井口，所盛的水被倾入灌溉渠内。
- These are chemicals with short molecules which can join together to form the long chain molecules of nylon. 己二胺和己二酸的短分子可以连接起来形成尼龙的长链分子。
- Octacosanol is a kind of long chain fatty alcohols and it is very hard to disperse in water phase. 二十八烷醇是一种高级饱和长链脂肪醇,水分散性差。
- The long chain alkyl methacrylate was synthesized by an im proved melt esterification method. 用改进的熔融酯化法制备了甲基丙烯酸十六酯。
- Synthesis and purification of long chain alkyl acrylate as intermediate of pour point depressant were introduced . 介绍了降凝剂中间体丙烯酸高碳醇酯的合成和产品分离提纯方法。
- They had longer chain gaps and needed a chain that was "stiffer" laterally. 他们长链的差距和需要一个链是“严厉的”横向。
- Monoglycerides,sugar esters,polyglyceryl fatty esters and long chain fatty wax esters are important biosurfactants. 脂肪酸单甘油酯、脂肪酸糖酯、聚甘油脂肪酸酯和长链脂肪酸蜡酯是重要的生物表面活性剂。
- There was a long lag in forwarding mail to us. 转寄给我们的邮件晚了很久才拿到。
