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    • 42. 发明授权
    • Process for producing vinyl acetate
    • 乙酸乙烯酯的制造方法
    • US4843170A
    • 1989-06-27
    • US466653
    • 1983-02-15
    • Tomiya IsshikiYasuhiko KijimaAkira ItoKenji Ishii
    • Tomiya IsshikiYasuhiko KijimaAkira ItoKenji Ishii
    • C07C67/36C07C31/08C07C53/08C07C67/297C07C69/15
    • C07C67/297C07C51/09C07C51/56C07C67/00C07C67/24C07C67/36
    • A process is disclosed for producing vinyl acetate from methanol, carbon monoxide and hydrogen which comprises the following five steps:(a) methanol is hydrocarbonylated in a hydrocarbonylation zone to produce ethanol, acetaldehyde, methyl acetate and dimethylacetal, and the products are separated in a separation zone;(b) methyl acetate is carbonylated in a carbonylation zone to produce acetic anhydride;(c) the acetaldehyde and dimethylacetal produced in the step (a) and the acetic anhydride produced in the step (b) are converted to ethylidene diacetate and methyl acetate; (d) the ethylidene diacetate produced in the step (c) is thermally decomposed to vinyl acetate and acetic acid, and the products are separated in a separation zone; and(e) the methyl acetate produced and separated in the step (a), (c) or (d) is supplied to the carbonylation step (b).
    • 公开了一种从甲醇,一氧化碳和氢气生产乙酸乙烯酯的方法,其包括以下五个步骤:(a)在烃基化区域中甲醇被烃化生成乙醇,乙醛,乙酸甲酯和二甲基缩醛,并将产物分离成 分离区; (b)乙酸甲酯在羰基化区羰基化,生成乙酸酐; (c)将步骤(a)中生成的乙醛和二甲基缩醛和步骤(b)中生产的乙酸酐转化为乙二乙酸乙酯和乙酸甲酯; (d)将步骤(c)中生产的亚乙基双乙酸酯热分解成乙酸乙烯酯和乙酸,并将产物在分离区中分离; 和(e)在步骤(a),(c)或(d)中产生和分离的乙酸甲酯被供应到羰基化步骤(b)。