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    • 2. 发明授权
    • Process for the recovery of citric acid
    • 回收柠檬酸的方法
    • US07411090B2
    • 2008-08-12
    • US10548171
    • 2004-03-03
    • Avraham BanielAsher VitnerDavid GonenDavid Heidel
    • Avraham BanielAsher VitnerDavid GonenDavid Heidel
    • C07C51/42C07C55/00
    • C07C51/43C07C51/48C07C59/265
    • The invention provides a process for the recovery of citric acid from an aqueous solution feed stream originating in fermentation of carbohydrates and utilizing an amine solvent extraction step for separation of impurities comprising: subjecting said aqueous solution feed stream A to a treatment for partial recovery of citric acid, wherein said treatment is other than amine solvent extraction, to form a first portion of purified citric acid B and a secondary feed stream F; subjecting at least a portion G of said secondary feed stream F to a treatment consisting of amine solvent extraction to form a second portion of purified citric acid solution and to reject substantial of impurities initially present in said portion of said secondary feed stream; subjecting said second portion of purified citric acid solution to crystallization; and recycling mother liquor from said crystallization.
    • 本发明提供了一种从源于碳水化合物发酵的水溶液进料流中回收柠檬酸的方法,并利用胺溶剂萃取步骤分离杂质,其包括:使所述水溶液进料流A处理部分回收柠檬酸 酸,其中所述处理不是胺溶剂萃取,以形成纯化柠檬酸B的第一部分和第二进料流F; 使至少一部分G的所述二次进料流F经受由胺溶剂萃取组成的处理以形成第二部分纯化的柠檬酸溶液并且排除最初存在于所述第二进料流的所述部分中的大量杂质; 对所述第二部分纯化柠檬酸溶液进行结晶; 并从所述结晶中回收母液。
    • 3. 发明申请
    • Process for the recovery of citric acid
    • 回收柠檬酸的方法
    • US20060247468A1
    • 2006-11-02
    • US10548171
    • 2004-03-03
    • Avraham BanielAsher VitnerDavid GonenDavid Heidel
    • Avraham BanielAsher VitnerDavid GonenDavid Heidel
    • C07C59/265
    • C07C51/43C07C51/48C07C59/265
    • The invention provides a process for the recovery of citric acid from an aqueous solution feed stream originating in fermentation of carbohydrates and utilizing an amine solvent extraction step for separation of impurities comprising: subjecting said aqueous solution feed stream A to a treatment for partial recovery of citric acid, wherein said treatment is other than amine solvent extraction, to form a first portion of purified citric acid B and a secondary feed stream F; subjecting at least a portion G of said secondary feed stream F to a treatment consisting of amine solvent extraction to form a second portion of purified citric acid solution and to reject substantial of impurities initially present in said portion of said secondary feed stream; subjecting said second portion of purified citric acid solution to crystallization; and recycling mother liquor from said crystallization.
    • 本发明提供了一种从源于碳水化合物发酵的水溶液进料流中回收柠檬酸的方法,并利用胺溶剂萃取步骤分离杂质,其包括:使所述水溶液进料流A处理部分回收柠檬酸 酸,其中所述处理不是胺溶剂萃取,以形成纯化柠檬酸B的第一部分和第二进料流F; 使至少一部分G的所述二次进料流F经受由胺溶剂萃取组成的处理以形成第二部分纯化的柠檬酸溶液并且排除最初存在于所述第二进料流的所述部分中的大量杂质; 对所述第二部分纯化柠檬酸溶液进行结晶; 并从所述结晶中回收母液。
    • 4. 发明授权
    • Method of concentrating hydrochloric acid
    • 浓缩盐酸的方法
    • US08163092B2
    • 2012-04-24
    • US12426308
    • 2009-04-20
    • Avraham BanielRobert Jansen
    • Avraham BanielRobert Jansen
    • C01B7/07
    • C01B7/0706
    • A method for producing concentrated HCl vapor from an aqueous solution of HCl, including: (a) introducing an aqueous feed liquor to an evaporation chamber containing a mother liquor, the feed liquor having an initial, super-azeotropic HCl concentration; (b) directly contacting a liquor of these liquors with a heat-laden heat transfer fluid, to transfer heat from the fluid; (c) utilizing the heat to evaporate HCl, within the chamber, to produce the concentrated HCl vapor and to produce the mother liquor, the mother liquor including an aqueous phase having a reduced concentration of HCl, with respect to the initial HCl concentration; (d) subjecting the mother liquor to a liquid-liquid separation to produce a liquid phase containing HCl, and another liquid phase containing the heat transfer fluid in a heat-depleted state, with respect to the heat transfer fluid in step (b); (e) heating the heat transfer fluid in the heat-depleted state, to regenerate the heat-laden heat transfer fluid, and (f) returning this heat transfer fluid to step (b).
    • 一种从HCl水溶液中生产浓HCl蒸气的方法,包括:(a)将含水原料液引入到含有母液的蒸发室中,该进料液体具有初始的超共沸HCl浓度; (b)将这些液体的液体与加热的传热流体直接接触,以从流体传递热量; (c)利用热量在室内蒸发HCl以产生浓缩的HCl蒸气并产生母液,该母液包含相对于初始HCl浓度具有降低的HCl浓度的水相; (d)相对于步骤(b)中的传热流体,使母液进行液液分离以产生含有HCl的液相和含有热耗尽状态的传热流体的另一液相; (e)加热处于耗热状态的传热流体,以再生载热的传热流体,和(f)将该传热流体返回到步骤(b)。
    • 7. 发明授权
    • Process for the recovery of lactic acid
    • 回收乳酸的方法
    • US5959144A
    • 1999-09-28
    • US103845
    • 1998-06-24
    • Avraham Baniel
    • Avraham Baniel
    • C07C51/48C07C51/42
    • C07C51/48
    • The invention provides a process for the recovery of lactic acid from an aqueous liquor containing water and calcium lactate, comprising the extraction step of combining the lactate aqueous liquor with an extractant containing at least one water immiscible amine having a total of at least 18 carbon atoms in the presence of carbon dioxide to form an aqueous phase and an organic phase containing extracted lactic acid and the extractant and separating lactic acid from the organic phase, characterized in that a carbohydrate is added to the aqueous liquor, the carbohydrate being present in the aqueous liquor at a weight concentration of at least 10% of the water content thereof.
    • 本发明提供了从含有水和乳酸钙的含水液体中回收乳酸的方法,其包括将乳酸盐水溶液与含有至少一种总共至少18个碳原子的至少一种不混溶的水的萃取剂组合的萃取步骤 在二氧化碳的存在下形成含水相和含有提取的乳酸的有机相和萃取剂并从有机相中分离乳酸,其特征在于将碳水化合物加入含水液体中,碳水化合物存在于水溶液 液体的重量浓度至少为其含水量的10%。
    • 10. 发明授权
    • Process for recovery of acid
    • 回收酸的方法
    • US06627768B1
    • 2003-09-30
    • US10089029
    • 2002-03-26
    • Avraham Baniel
    • Avraham Baniel
    • C07C6966
    • C08G63/06C07C51/48C07C51/487
    • The invention provides a process for the conversion of an extracted carboxylic acid to a non-ionized derivative thereof, comprising contacting a carboxylic acid containing aqueous solution with a water-insoluble amine solvent, to recover acid therefrom and to form an extract carrying amine-bound carboxylic acid, characterized in that said extract is contacted with a concentrated aqueous solution of said same acid of high concentration, whereby additional acid is transferred to said extract to form a loaded extract and said loaded extract is reacted to form a non-ionized derivative of said acid, by reactions known per se, whereby said acid is converted into a non-ionised derivative form and said amine solvent is liberated for recycling.
    • 本发明提供了将提取的羧酸转化为非离子化衍生物的方法,包括使含羧酸的水溶液与水不溶性胺溶剂接触,以从其中回收酸,并形成携带胺结合的提取物 羧酸,其特征在于所述提取物与所述高浓度的相同酸的浓缩水溶液接触,由此将另外的酸转移到所述提取物中以形成负载的提取物,并将所述负载的提取物反应以形成非离子化的衍生物 所述酸通过本身已知的反应,由此将所述酸转化成非离子化的衍生物形式,并释放所述胺溶剂用于再循环。