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    • 8. 发明专利
    • Process for producing percarboxylic acid
    • 生产过氧碳酸的方法
    • JP2003012640A
    • 2003-01-15
    • JP2002101289
    • 2002-04-03
    • Kemira Chemicals Oyケミラ・ケミカルズ・オイ
    • POHJANVESI SEPPOMUSTONEN EVA-LIISAPUKKINEN ARTOLEHTINEN REINO
    • C07C407/00A01N37/02A01N59/00C07B61/00C07C409/24C07C409/26
    • C07C409/24C07C407/00C07C407/003C07C409/26
    • PROBLEM TO BE SOLVED: To provide a process for producing a percarboxylic acid, by which a usable bottom product can be produced in the highest raw material efficiency ratio.
      SOLUTION: This process for the production of the peracetic acid product by continuously feeding hydrogen peroxide, acetic acid and water into an aqueous reaction medium containing hydrogen peroxide, acetic acid, peracetic acid and an acid catalyst, wherein hydrogen peroxide and acetic acid react in the presence off the acid catalyst and form the peracetic acid, and by removing an aqueous peracetic acid concentrate continuously from the reaction medium by distillation, is characterized in that the acid catalyst is continuously led into the reaction medium so that the amount of acid catalyst in the reaction medium is kept in a range which corresponds to 0.5 to 10 wt.% of sulfonic acid, and from the reaction medium is continuously withdrawn 1 to 10 wt.% of the total amount of the fed materials in as a bottom product.
      COPYRIGHT: (C)2003,JPO
    • 要解决的问题:提供一种生产过羧酸的方法,通过该方法可以以最高的原料效率比生产可用的底部产物。 解决方案:通过将过氧化氢,乙酸和水连续供给到含有过氧化氢,乙酸,过乙酸和酸催化剂的水性反应介质中,生产过乙酸产物的方法,其中过氧化氢和乙酸在 脱离酸催化剂并形成过乙酸,并通过蒸馏从反应介质中连续除去过乙酸水溶液,其特征在于将酸催化剂连续引入反应介质中,使得酸催化剂的量在 反应介质保持在相当于0.5〜10重量%的磺酸的范围内,并且从反应介质中连续取出作为底部产物的进料物质总量的1〜10重量%。