醋酸乙烯的精制过程

来源 :精细化工原料及中间体 | 被引量 : 0次 | 上传用户:wjdy110
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本发明涉及到从气体混合物分离醋酸乙烯的过程,气体混合物是在气相中,由乙烯与醋酸和氧通过含钯或钯化合物的催化剂转化得到的,从蒸馏塔除去部分塔底产品,产生的纯醋酸乙烯用水蒸气-饱和的二氧化碳流加热,二氧化碳是从二氧化碳解吸剂得到的,加热的醋酸乙烯返回到蒸馏塔, The present invention relates to the process of separating vinyl acetate from a gas mixture obtained by converting ethylene and acetic acid and oxygen in a gas phase by a catalyst containing palladium or palladium compounds to remove some of the bottom product from the distillation column to produce pure Vinyl acetate is heated with a steam-saturated carbon dioxide stream, which is obtained from a carbon dioxide desorbent, and the heated vinyl acetate is returned to the distillation column,
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