| 摘要 |
<p>A process for purification of non-enolisable esters, especially esters of 2-cyanoacrylic acid, from contaminating volatile acids, non-volatile acids and other substances which can decompose to generate strongly acidic impurities, comprises reacting a solution of the ester with a metallic reagent selected from a metal, metal oxide and a metal hydride or a mixture thereof in the form of a dispersion, emulsion or suspension. The metallic reagent is optionally supported on a solid, insoluble support. The process is especially suitable for the purification of liquid, non-distillable esters of 2-cyanoacrylic acid.</p> |
