کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9562680 | 1503088 | 2005 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Acid ion-exchange resins catalysts for the liquid-phase dimerization/etherification of isoamylenes in methanol or ethanol presence
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Acid ion-exchange resins catalysts for the liquid-phase dimerization/etherification of isoamylenes in methanol or ethanol presence Acid ion-exchange resins catalysts for the liquid-phase dimerization/etherification of isoamylenes in methanol or ethanol presence](/preview/png/9562680.png)
چکیده انگلیسی
Dimerization of 2-methyl-1-butene and 2-methyl-2-butene mixture using Amberlyst 35, Amberlyst 15, Amberjet 1500H, Purolite CT-175 and Purolite CT-275 as catalysts was carried out in a discontinuous stirred tank reactor at 353 K in methanol and ethanol presence in a molar ratio isoamylenes/alcohol = 9. Amberlyst 35 was found to be the most active resin. Alcohol presence appeared to improve the selectivity for diisoamylenes: no significant amounts of trimers, tetramers or cracking products were obtained in the studied conditions. Almost all the alcohol react in the first reaction stages to form ether. Both alcohols gave the same correlation between isoamylenes conversion and diisoamylenes selectivity: as conversion increases, selectivity increases, diisoamylenes yield and isoamylenes conversion being lower in ethanol than in methanol presence. 2,3,4,4-tetramethyl-1-hexene, 3,4,4,5-tetramethyl-2-hexene and 3,4,5,5-tetramethyl-2-hexene were the main dimers obtained.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Reactive and Functional Polymers - Volume 65, Issues 1â2, November 2005, Pages 149-160
Journal: Reactive and Functional Polymers - Volume 65, Issues 1â2, November 2005, Pages 149-160
نویسندگان
V.J. Cruz, J.F. Izquierdo, F. Cunill, J. Tejero, M. Iborra, C. Fité,