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    • 8. 发明授权
    • Method and apparatus for producing lactic acid
    • 生产乳酸的方法和装置
    • US08673600B2
    • 2014-03-18
    • US13717947
    • 2012-12-18
    • Hyundai Motor Company
    • Si Hwan KimChae Hwan HongJiyoun SeoDo Suck Han
    • C12P7/56C12P7/40C12P7/00
    • C12M27/18C12M29/18C12M47/10
    • Disclosed is an apparatus and a method for producing lactic acid, wherein only lactic acid is selectively absorbed and separated from fermentation liquor using a lactic acid absorption resin and wherein a neutralizing agent is not used. The present invention does not include a neutralizing process and a process of converting lactate to lactic acid. The method comprises: adding and mixing a culture medium, microorganism and sugar in a fermenter; passing a fermentation liquor through a microorganism filtration unit to remove microorganisms; and selectively absorbing and separating lactic acid from filtered liquid using a lactic acid absorption resin. The apparatus includes a fermenter for lactic acid fermentation; a filtration unit for removing a microorganisms from the fermentation liquor; and a lactic acid absorption resin for selectively absorbing lactic acid from the filtered liquid.
    • 本发明公开了一种生产乳酸的装置和方法,其中只使用乳酸吸收树脂从发酵液中选择性地吸收和分离乳酸,并且其中不使用中和剂。 本发明不包括中和方法和将乳酸转化成乳酸的方法。 该方法包括:在发酵罐中加入和混合培养基,微生物和糖; 将发酵液通过微生物过滤单元以除去微生物; 并使用乳酸吸收树脂选择性地从过滤液中吸收和分离乳酸。 该装置包括用于乳酸发酵的发酵罐; 用于从发酵液中除去微生物的过滤单元; 以及用于从过滤液中选择性吸收乳酸的乳酸吸收树脂。
    • 9. 发明申请
    • METHOD AND APPARATUS FOR PRODUCING LACTIC ACID
    • 用于生产乳酸的方法和装置
    • US20130266996A1
    • 2013-10-10
    • US13717947
    • 2012-12-18
    • HYUNDAI MOTOR COMPANY
    • Si Hwan KimChae Hwan HongJiyoun SeoDo Suck Han
    • C12M1/00
    • C12M27/18C12M29/18C12M47/10
    • The present invention provides an apparatus and a method for producing lactic acid, wherein only lactic acid is selectively absorbed and separated from fermentation liquor using a lactic acid absorption resin and wherein a neutralizing agent is not used. The present invention does not include a neutralizing process and a process of converting lactate to lactic acid. The method of the present invention comprises the steps of: adding and mixing a culture medium, microorganism and sugar in a fermenter; passing a fermentation liquor through a microorganism filtration unit to remove microorganism through a cross-flow filtration; and selectively absorbing and separating lactic acid from filtered liquid using a lactic acid absorption resin. Accordingly, the separation and purification process of lactic acid from a fermentation liquor for polymerization is simplified. The manufacturing cost is thus reduced. The apparatus of the invention includes a fermenter for lactic acid fermentation; a filtration unit for removing a microorganism present in a fermentation liquor; and a lactic acid absorption resin for selectively absorbing lactic acid from a filtered liquid.
    • 本发明提供一种生产乳酸的装置和方法,其中只使用乳酸吸收树脂从发酵液中选择性地吸收和分离乳酸,并且其中不使用中和剂。 本发明不包括中和方法和将乳酸转化成乳酸的方法。 本发明的方法包括以下步骤:在发酵罐中加入和混合培养基,微生物和糖; 将发酵液通过微生物过滤单元以通过交叉流过滤除去微生物; 并使用乳酸吸收树脂选择性地从过滤液中吸收和分离乳酸。 因此,简化了用于聚合的发酵液中的乳酸的分离和纯化过程。 因此制造成本降低。 本发明的装置包括用于乳酸发酵的发酵罐; 用于除去发酵液中存在的微生物的过滤单元; 以及用于从过滤液中选择性吸收乳酸的乳酸吸收树脂。