کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8094262 | 1522059 | 2018 | 29 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Process intensification and waste minimization for ibuprofen synthesis process
ترجمه فارسی عنوان
تشدید فرایند و کمینه سازی ضایعات برای پروتئین سنتز ایبوپروفن
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
ایبوپروفن تشدید روند، کمینه سازی زباله، تقطیر مجدد، طراحی راکتور،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
In China, the most commonly used method for the synthesis of ibuprofen is aryl-1,2-translocation rearrangement, which comprises several main processes: the Friedel-hydrolysis reaction, ketal reaction and so on. There are some problems in the process of industrial production. The temperature control of the Friedel-hydrolysis reaction is a problem because excessive temperatures will lead to the occurrence of side reactions, and low temperatures will lead to the crystallization of raw reaction materials. The reaction time of the ketal reaction is up to 24â¯h, which limits the productive capacity of ibuprofen. Otherwise, the emissions of the ibuprofen synthesis processes are more than 5000â¯m3/h of waste gas with VOC contents of over 1000â¯mg/m3 and highly concentrated organic wastewater, with a COD up to 20,000â¯mg/L. Therefore, process intensification and waste minimization of the ibuprofen synthesis process is described in this paper. A new reactor is designed for the Friedel-hydrolysis reaction. The reaction temperature can be precisely controlled at 13-15â¯Â°C, which effectively inhibits the occurrence of side reactions. The industrial applications showed that the ketal reaction time is reduced from 24â¯h to less than 8â¯h. The VOC content is reduced to less than 100â¯mg/m3, and the COD value is reduced to 150â¯mg/L in the improved processes, which meet national emissions standards.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Cleaner Production - Volume 194, 1 September 2018, Pages 396-405
Journal: Journal of Cleaner Production - Volume 194, 1 September 2018, Pages 396-405
نویسندگان
Yixin Ma, Xia Zhang, Zhaoyou Zhu, Yinglong Wang, Jun Gao, Peizhe Cui,