Open AccessModernization of the Catalyst Composition for the Synthesis of Acrylic Acid Nitrile in Aqueous and Non-Aqueous Media
Author(s) -
S. Yangibaev,
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Publication year - 2021
Publication title -
international journal of pharmaceutical and bio-medical science
Language(s) - English
Resource type - Journals
eISSN - 2767-830X
pISSN - 2767-827X
DOI - 10.47191/ijpbms/v1-i9-04
Subject(s) - catalysis , selectivity , aqueous solution , chemistry , nitrile , composition (language) , aqueous medium , acetylene , hydrocyanation , aqueous two phase system , nuclear chemistry , organic chemistry , inorganic chemistry , philosophy , linguistics
The effect of the components of the catalyst solution for the hydrocyanation of acetylene on the activity and selectivity of the process under liquid-phase conditions has been studied. The introduction of ZnSO 4 and ZnO additives into the shop catalyst did not give a positive effect under these conditions. Studies of catalysts in non-aqueous media lead to an increase in their activity and selectivity in comparison with aqueous media. It has been shown that the composition of the CuCl - NMP - DMF catalyst is characterized by high activity (up to 32 g / l.h.) and selectivity (83-90%), i.e. the activity of this composition is almost twice as high as compared to the water-based ones (12-18 g l.h.).