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专利摘要本发明是通过醋酸乙烯流与醋酸,乙烯和氧接触形成反应混合物,并在反应条件下在反应器中,反应混合物有效形成粗醋酸乙烯组成物,其包含醋酸乙烯,水,醋酸和至少0.1质量%的二乙酰氧基乙烯。发明的详细说明前言传统的醋酸乙烯生产过程生成醋酸乙烯组成物,组成物不仅包含醋酸乙烯,还有许多不需要的副产物,如非-挥发性残留物和重组分。这些副产物的生成降低了产量,并对生产设备产生不利影响。例
Summary of the Invention In the present invention, a reaction mixture is formed by the flow of a vinyl acetate stream in contact with acetic acid, ethylene and oxygen and under reaction conditions in a reactor the reaction mixture effectively forms a crude vinyl acetate composition comprising vinyl acetate, water, acetic acid and at least 0.1% by mass of diacetoxyethylene. DETAILED DESCRIPTION OF THE INVENTION Conventional vinyl acetate production processes produce vinyl acetate compositions that contain not only vinyl acetate but also many unwanted by-products such as non-volatile residues and heavy components. The production of these by-products reduces the yield and adversely affects the production equipment. example