کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
52976 | 46892 | 2009 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Highly effective synthesis of methyl glycolate with heteropolyacids as catalysts
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Highly effective synthesis of methyl glycolate with heteropolyacids as catalysts Highly effective synthesis of methyl glycolate with heteropolyacids as catalysts](/preview/png/52976.png)
چکیده انگلیسی
Methyl glycolate (MG) was synthesized successfully from the carbonylation of HCHO using heteropolyacids (HPAs) as catalysts, followed by esterification with methanol. The catalytic activities of different HPAs and effect of solvents and water amount in the reaction system were investigated with an autoclave under optimized reaction conditions. The stability and reusability of the catalysts were tested after separating the ingredients from the reaction system by distillation under vacuum. MG yield above 89% could be obtained when H3PW12O40 and sulfolane are employed as catalyst and solvent, respectively. The performance of catalysts did not show any significant deterioration after 10 times recycle.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Communications - Volume 10, Issue 5, 25 January 2009, Pages 678–681
Journal: Catalysis Communications - Volume 10, Issue 5, 25 January 2009, Pages 678–681
نویسندگان
Ying Sun, Hua Wang, Jianghan Shen, Hongchao Liu, Zhongmin Liu,