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Date: 18-9-2017
1241
Date: 23-11-2015
1317
Date: 6-4-2016
1011
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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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لصحة القلب والأمعاء.. 8 أطعمة لا غنى عنها
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حل سحري لخلايا البيروفسكايت الشمسية.. يرفع كفاءتها إلى 26%
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جامعة الكفيل تحتفي بذكرى ولادة الإمام محمد الجواد (عليه السلام)
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