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Date: 11-9-2017
3067
Date: 10-8-2017
1023
Date: 14-8-2017
1111
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ADIPIC ACID (HOOC(CH2)4COOH)
Adipic acid may be produced by a liquid-phase catalytic carbonylation of butadiene. A catalyst of RhCl2 and CH3I is used at approximately 220°C and 75 atmospheres. Adipic acid yield is about 49%. Both α gultaric acid (25%) and valeric acid (26%) are coproduced:
BASF is operating a semicommercial plant for the production of adipic acid via this route. A new route to adipic acid occurs via a sequential carbonylation, isomerization, hydroformylation reactions. The following illustrates these steps:
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تفوقت في الاختبار على الجميع.. فاكهة "خارقة" في عالم التغذية
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أمين عام أوبك: النفط الخام والغاز الطبيعي "هبة من الله"
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قسم شؤون المعارف ينظم دورة عن آليات عمل الفهارس الفنية للموسوعات والكتب لملاكاته
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