アクリル酸2-エチルヘキシルの研究-1-

概要

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Condition for the modified normal pressure Reppe's process under continuous operation have been established as follows.<BR>It is recommended to add an acid at an amount approximately equivalent to the nickel of the nickelcarbonyl for the formation of a nickelous salt. Hydrogen chloride proved most satisfactory.<BR>The presence of nickelcarbonyl at a level 10-20 mol % in excess of the acid prevents the formation of the β-chloropropionate and the corrosion of equipments. The use of 5-10% excess acetylene over the totol carbon monoxide (free carbon monoxide plus nickel carbonyl) ensures the product purity and stable operation.<BR>In continuous operation, the reaction is effectuated at 40°C in the presence of 2-ethylhexyl alcohol at an weight almost same as that of 2-ethylhexyl acrylate.
社団法人有機合成化学協会の論文