甲苯氧化甲基化合成苯乙烯是一种新工艺。
Oxidative methylation of toluol to styrene is a new process.
方法采用顶空气相色谱法对树脂残留物正己烷、苯、甲苯、二甲苯、苯乙烯进行检测。
METHODS Headspace GC was used to determine the skellysolve B, benzene, methylbenzene, styrene in Peristrophe baphica extraction.
讨论了影响苯乙烯系热塑性弹性体SDS（包括SBS、SIS）的甲苯溶液粘度的有关因素。
In this thesis the relationship between structure parameters of styrenic thermoplastic elastomer SDS (SBS, SIS) and its toluene solution viscosity was discussed.
酮的对甲苯磺酰腙在含水的乙腈中与聚苯乙烯二醋酸磺苯在温和条件下反应得到高产率的酮。
Reaction of tosylhydrazones of ketones with CPSID in wet acetonitrile affords the corresponding parent ketones in excellent yields under mild conditions.
方法取ab- 8树脂分别经乙醇、丙酮处理前后的浸出液及经树脂吸附后的栀子洗脱液，以气相色谱法检测其中苯、甲苯、二甲苯、苯乙烯残留物的含量。
METHOD AB 8 resin was treated with alcohol and propanone and the extract was detected for the content of the residues of benzene, methylbenzene, xylene and styrene.
甲苯氧化甲基化合成苯乙烯是目前正在探讨的合成苯乙烯的新工艺。
Oxidative methylation of toluol to styrene is a new process studied widely recently.
最新的分离技术使得从裂解汽油中回收高纯度的苯乙烯和异构级的混合二甲苯成为可能。这比把他们混合到汽油中更大大提升了其价值。
Latest separation technology makes it possible that recycling high-purity styrene and isomerous MX (mixed xylene), which greatly upgrades its value rather than those mixed into gasoline.
综述了三十年来国内外有关在改性X型沸石催化剂上，甲苯、甲醇侧链烷基化制备苯乙烯反应的研究状况。
A review is presented on side chain alkylation of toluene with methanol for styrene synthesis over modified X type zeolites in the last 30 years.
再采用顶空气相色谱法检测所得苹果多酚纯化物中正己烷、苯、甲苯、对二甲苯、邻二甲苯、苯乙烯等有机溶剂残留均低于检测限。
There were not n-hexane, benzene, toluene and xylene, o-xylene, styrene and other organic solvent residue in the purification of apple polyphenol by the headspace gas chromatograph.
苯乙烯和混合二甲苯的混合物，在合成硅铝酸催化剂存在下连续合成二芳基乙烷。
Diarylethane was synthesized continuously from a mixture of styrene and xylol with synthetic SiO_2-Al_2O_3 as catalyst.
苯乙烯和混合二甲苯的混合物，在合成硅铝酸催化剂存在下连续合成二芳基乙烷。
Diarylethane was synthesized continuously from a mixture of styrene and xylol with synthetic SiO_2-Al_2O_3 as catalyst.
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