CARBOXYLATE ACIDIFICATION
    1.
    发明申请
    CARBOXYLATE ACIDIFICATION 有权
    羧酸酸化

    公开(公告)号:US20150044741A1

    公开(公告)日:2015-02-12

    申请号:US14376639

    申请日:2013-02-08

    IPC分类号: C07C51/02 C12P7/56 C07C59/08

    摘要: A method for preparing a carboxylic acid by acidification of a liquid feed including a carboxylate salt, which method includes the steps of providing a liquid feed including magnesium carboxylate; providing a gas feed including gaseous hydrogen chloride; and acidifying the carboxylate to carboxylic acid by bringing the liquid feed into contact with the gas feed, thereby forming a liquid effluent including carboxylic acid and magnesium chloride, wherein the gas feed including gaseous hydrogen chloride is derived from a thermal decomposition step wherein an aqueous liquid including magnesium chloride is subjected to a temperature of at least 300° C., thereby decomposing magnesium chloride into magnesium oxide and hydrogen chloride, thus obtaining a solid including magnesium oxide and a gas comprising gaseous hydrogen chloride.

    摘要翻译: 一种通过酸化含有羧酸盐的液体原料制备羧酸的方法,该方法包括提供包括羧酸镁的液体进料的步骤; 提供包括气态氯化氢的气体进料; 并通过使液体进料与气体进料接触而将羧酸酯酸化,从而形成包括羧酸和氯化镁的液体流出物,其中包括气态氯化氢的气体进料源自热分解步骤,其中水性液体 包括氯化镁的温度至少为300℃,从而将氯化镁分解成氧化镁和氯化氢,从而得到包含氧化镁和包含气态氯化氢的气体的固体。

    Method for providing a succinic acid solution

    公开(公告)号:US10793501B2

    公开(公告)日:2020-10-06

    申请号:US15747189

    申请日:2016-07-29

    摘要: The invention pertains to a method for providing a succinic acid solution, comprising the steps of —providing a first magnesium succinate containing medium with a magnesium succinate concentration of 18-23 wt. % to a first acidification reactor where it is contacted with hydrogen chloride to form a solution of succinic acid, magnesium chloride and hydrogen chloride, —providing a second magnesium succinate containing medium with a magnesium succinate concentration of 25-50 wt. %, and contacting it in a second acidification reactor with the solution of succinic acid, magnesium chloride and hydrogen chloride withdrawn from the first acidification reactor, to form an aqueous mixture comprising magnesium chloride and succinic acid with a succinic acid concentration of at least 18 wt. %. The method according to the invention makes it possible to obtain a solution comprising succinic acid and magnesium 20 chloride with an increased succinic acid concentration.

    Method for manufacturing succinic acid

    公开(公告)号:US10093608B2

    公开(公告)日:2018-10-09

    申请号:US15743842

    申请日:2016-07-14

    摘要: The invention pertains to a method for preparing succinic acid which comprises providing an aqueous magnesium succinate solution to an acidification step, wherein the magnesium succinate solution is acidified by the addition of hydrogen chloride, thereby obtaining an aqueous solution comprising succinic acid and magnesium chloride and subjecting the aqueous solution comprising succinic acid and magnesium chloride derived from the acidification step to a treatment step with active carbon followed by precipitating succinic acid from an aqueous mixture comprising succinic acid and magnesium chloride resulting from the active carbon treatment step in a precipitation step to form solid succinic acid. It has been found that the method according to the invention leads to succinic acid crystals with better properties than a comparable method wherein no active carbon treatment is used.

    Carboxylate acidification
    7.
    发明授权
    Carboxylate acidification 有权
    羧酸酸化

    公开(公告)号:US09090548B2

    公开(公告)日:2015-07-28

    申请号:US14376639

    申请日:2013-02-08

    摘要: A method for preparing a carboxylic acid by acidification of a liquid feed including a carboxylate salt, which method includes the steps of providing a liquid feed including magnesium carboxylate; providing a gas feed including gaseous hydrogen chloride; and acidifying the carboxylate to carboxylic acid by bringing the liquid feed into contact with the gas feed, thereby forming a liquid effluent including carboxylic acid and magnesium chloride, wherein the gas feed including gaseous hydrogen chloride is derived from a thermal decomposition step wherein an aqueous liquid including magnesium chloride is subjected to a temperature of at least 300° C., thereby decomposing magnesium chloride into magnesium oxide and hydrogen chloride, thus obtaining a solid including magnesium oxide and a gas comprising gaseous hydrogen chloride.

    摘要翻译: 一种通过酸化含有羧酸盐的液体原料制备羧酸的方法,该方法包括提供包括羧酸镁的液体进料的步骤; 提供包括气态氯化氢的气体进料; 并通过使液体进料与气体进料接触而将羧酸酯酸化,从而形成包括羧酸和氯化镁的液体流出物,其中包括气态氯化氢的气体进料源自热分解步骤,其中水性液体 包括氯化镁的温度至少为300℃,从而将氯化镁分解成氧化镁和氯化氢,从而得到包含氧化镁和包含气态氯化氢的气体的固体。