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    • 15. 发明申请
    • Process for producing acrylic ester
    • 制备丙烯酸酯的方法
    • US20080015384A1
    • 2008-01-17
    • US11822521
    • 2007-07-06
    • Hidefumi HaramakiManabu Matsui
    • Hidefumi HaramakiManabu Matsui
    • C07C69/00
    • C07C67/08C07C67/54C07C69/54
    • A process for producing an acrylic ester with excellent economic efficiency, which can eliminate the conventional problems to maintain the stable quality and the low unit consumption of raw materials, in the process for producing an acrylic ester using acrylic acid containing high-boiling acid components influencing the loss in quality and the unit consumption of raw materials, and an aliphatic or alicyclic alcohol having from 5 to 8 carbon atoms, as raw materials, and using a strongly acidic cation exchange resin as a catalyst. In such a process for producing an acrylic ester, a crude acrylic ester withdrawn from the bottom of a low-boiling separation column is supplied to a rectifying column, a rectified acrylic ester is taken out from the top of the rectifying column, while a high-boiling substance containing an acrylic ester, which is withdrawn from the bottom of the rectifying column, is supplied to a high-boiling separation column and/or a thin-film evaporator to separate it into an acrylic ester component and a high-boiling substance, and the separated acrylic ester component is taken out as a distillate and supplied to the low-boiling separation column for its recovery.
    • 丙烯酸酯的制造方法,在丙烯酸酯的制造方法中,使用含有高沸点酸成分的丙烯酸,影响丙烯酸酯的制造方法,其具有经济效益优异的丙烯酸酯的制造方法,能够消除常规问题,维持原料的稳定品质和低的单位消耗 原料的质量损失和单位消耗量,具有5〜8个碳原子的脂肪族或脂环族醇作为原料,使用强酸性阳离子交换树脂作为催化剂。 在这样的丙烯酸酯的制造方法中,将从低沸点分离塔的底部排出的粗丙烯酸酯供给到精馏塔,从精馏塔的顶部取出精制丙烯酸酯, 将从精馏塔底部排出的含有丙烯酸酯的沸腾物质供给至高沸点分离塔和/或薄膜蒸发器,将其分离成丙烯酸酯成分和高沸点物质 ,分离出的丙烯酸酯组分作为馏出物取出,供给低沸点分离塔进行回收。
    • 19. 发明授权
    • Process for producing acrylic ester
    • 制备丙烯酸酯的方法
    • US07491841B2
    • 2009-02-17
    • US11822521
    • 2007-07-06
    • Hidefumi HaramakiManabu Matsui
    • Hidefumi HaramakiManabu Matsui
    • C07C67/48
    • C07C67/08C07C67/54C07C69/54
    • A process for producing an acrylic ester using acrylic acid and an aliphatic or alicyclic alcohol having from 5 to 8 carbon atoms, as raw materials, and using a strongly acidic cation exchange resin as a catalyst. In such a process for producing an acrylic ester, a crude acrylic ester withdrawn from the bottom of a low-boiling separation column is supplied to a rectifying column, a rectified acrylic ester is taken out from the top of the rectifying column, while a high-boiling substance containing an acrylic ester, which is withdrawn from the bottom of the rectifying column, is supplied to a high-boiling separation column and/or a thin-film evaporator to separate it into an acrylic ester component and a high-boiling substance, and the separated acrylic ester component is taken out as a distillate and supplied to the low-boiling separation column for its recovery.
    • 使用丙烯酸和具有5〜8个碳原子的脂肪族或脂环族醇作为原料,使用强酸性阳离子交换树脂作为催化剂来制造丙烯酸酯的方法。 在这样的丙烯酸酯的制造方法中,将从低沸点分离塔的底部排出的粗丙烯酸酯供给到精馏塔,从精馏塔的顶部取出精制丙烯酸酯, 将从精馏塔底部排出的含有丙烯酸酯的沸腾物质供给至高沸点分离塔和/或薄膜蒸发器,将其分离成丙烯酸酯成分和高沸点物质 ,分离出的丙烯酸酯组分作为馏出物取出,供给低沸点分离塔进行回收。