PRODUCTION OF CAPROLACTAM FROM CARBOHYDRATE-CONTAINING MATERIALS
    152.
    发明申请
    PRODUCTION OF CAPROLACTAM FROM CARBOHYDRATE-CONTAINING MATERIALS 有权
    从含碳酸盐的材料生产卡波铵

    公开(公告)号:US20120264908A1

    公开(公告)日:2012-10-18

    申请号:US13434756

    申请日:2012-03-29

    Abstract: The present invention generally relates to processes for the conversion of glucose to caprolactam employing chemocatalytic oxidation and reduction reactions. The present invention also includes processes for the conversion of glucose to caprolactam via amido polyhydroxy acid products and amidocaproic acid or derivatives thereof. The present invention also includes processes that catalytically oxidize an amidopolyol to amidopolyhydroxy acid or derivatives thereof, and processes that catalytically hydrodeoxygenate amino or amido polyhydroxy acid or derivatives thereof to an amino or amidocaproic acid product. The amino or amidocaproic acid product may then be converted to caprolactam. The present invention also includes products produced by such processes and products producable from such products.

    Abstract translation: 本发明一般涉及使用化学催化氧化和还原反应将葡萄糖转化成己内酰胺的方法。 本发明还包括通过酰氨基多羟基酸产物和酰胺基己酸或其衍生物将葡萄糖转化成己内酰胺的方法。 本发明还包括催化氧化脒基多酸至多羟基酸或其衍生物的方法,以及将氨基或酰胺多羟基酸或其衍生物催化加氢脱氧至氨基或酰胺基己酸产物的方法。 然后将氨基或酰胺基己酸产物转化成己内酰胺。 本发明还包括通过这些方法生产的产品和可从这些产品生产的产品。

    Catalytic deamination for caprolactam production
    153.
    发明授权
    Catalytic deamination for caprolactam production 有权
    己内酰胺生产催化脱氨

    公开(公告)号:US08283466B2

    公开(公告)日:2012-10-09

    申请号:US12527848

    申请日:2008-02-20

    Applicant: John W. Frost

    Inventor: John W. Frost

    CPC classification number: C07D201/00 C07D201/02 C07D201/08 Y02P20/52

    Abstract: Catalytic processes for preparing caprolactam, pipecolinic acid, and their derivatives, from lysine or alpha-amino-epsilon-caprolactam starting materials, and products produced thereby. A process for preparing caprolactam or a derivative thereof, the process comprising contacting a reactant comprising lysine or alpha aminocaprolactam with a catalyst and a gas comprising hydrogen gas, in the presence of a solvent. The catalyst may be provided on a support material, such as a transition metal.

    Abstract translation: 从赖氨酸或α-氨基-ε-己内酰胺起始原料制备己内酰胺,哌可啶酸及其衍生物的催化方法,以及由此产生的产物。 一种制备己内酰胺或其衍生物的方法,该方法包括在溶剂存在下使包含赖氨酸或α-氨基己内酰胺的反应物与催化剂和包含氢气的气体接触。 催化剂可以设置在载体材料如过渡金属上。

    Methods of Making Cyclic Amide Monomers and Related Derivatives
    155.
    发明申请
    Methods of Making Cyclic Amide Monomers and Related Derivatives 审中-公开
    制备环酰胺单体和相关衍生物的方法

    公开(公告)号:US20110190488A1

    公开(公告)日:2011-08-04

    申请号:US13055668

    申请日:2009-07-24

    Inventor: Douglas A. Wicks

    CPC classification number: C07D223/12

    Abstract: The present invention relates to methods of making a cyclic amide. The methods include the step of heating a fermentation broth in a manner effective to produce a cyclic amide, wherein the fermentation broth includes an amino acid or salt thereof. The cyclic amide monomers can be polymerized in a manner effective to form a polyamide. One advantage of the present invention is that lysine and/or salt thereof can be heated to form α-amino-ε-caprolactam while the lysine is still in the fermentation broth. The lysine and/or salt thereof do not need to be purified from the fermentation broth prior to being heated to form α-amino-ε-caprolactam. For example, the fermentation broth does not need to be subjected to an ion exchange process prior to being heated to form α-amino-ε-caprolactam. Avoiding such an ion exchange process can substantially reduce manufacturing costs.

    Abstract translation: 本发明涉及制备环状酰胺的方法。 该方法包括以有效产生环状酰胺的方式加热发酵肉汤的步骤,其中发酵液包含氨基酸或其盐。 环酰胺单体可以以有效形成聚酰胺的方式进行聚合。 本发明的一个优点是赖氨酸和/或其盐可加热形成α-氨基 - 己内酰胺,而赖氨酸仍然在发酵液中。 在加热形成α-氨基 - 己内酰胺之前,赖氨酸和/或其盐不需要从发酵液中纯化。 例如,发酵液不需要在被加热形成α-氨基 - 己内酰胺之前进行离子交换过程。 避免这样的离子交换过程可以大大降低制造成本。

    Method for purifying lactams
    158.
    发明授权
    Method for purifying lactams 有权
    内酰胺纯化方法

    公开(公告)号:US07384518B2

    公开(公告)日:2008-06-10

    申请号:US10296512

    申请日:2001-05-28

    CPC classification number: C07D201/16 C07D201/08 Y10S203/90

    Abstract: A method and a plant are disclosed for purifying lactams, particularly lactams obtained by cyclizing hydrolysis of aminonitrile. The purification of ε-caprolactam obtained by cyclizing hydrolysis of aminocapronitrile is described which includes eliminating the ammonia from the reaction medium of the hydrolysis, then recovering the lactam from said medium in purified form. The recovery is carried out by performing at least a distillation of the lactam in the presence of a base producing optionally a fronts fraction comprising compounds more volatile than the lactam, a fraction comprising the lactam to be recovered to the degree of desired purity and a distillation tails comprising the lactam and compounds less volatile than the lactam. The distillation tails are treated by various processes such as evaporation in thin layers to recover the major part of the caprolactam and recycling the latter in the purification process. The method and plant enables a high rate of recovery of the caprolactam contained in the hydrolysis medium, while observing required criteria of purity.

    Abstract translation: 公开了一种用于纯化内酰胺,特别是通过环化氨基腈水解获得的内酰胺的方法和设备。 描述了通过环化氨基己腈水解获得的ε-己内酰胺的纯化,其包括从水解反应介质中除去氨,然后以纯化形式从所述介质中回收内酰胺。 回收是通过在碱的存在下至少进行内消旋而进行的,所述碱生产任选地含有比内酰胺更易挥发的化合物的前列馏分,包含待回收的内酰胺至所需纯度的馏分和蒸馏 尾部包含内酰胺和化合物比内酰胺更不易挥发。 蒸馏尾部通过各种方法处理,例如在薄层中蒸发以回收大部分己内酰胺并在纯化过程中回收己内酰胺。 该方法和设备能够在观察所需的纯度标准的同时使包含在水解介质中的己内酰胺的回收率高。

    Process for the preparation of ε-caprolactam
    160.
    发明授权
    Process for the preparation of ε-caprolactam 失效
    制备ε-己内酰胺的方法

    公开(公告)号:US06841666B2

    公开(公告)日:2005-01-11

    申请号:US10473077

    申请日:2002-03-22

    CPC classification number: C08G69/16 C07D201/08

    Abstract: The invention relates to a process for the preparation ε-caprolactam starting from 6-aminocapronitrile by hydrolysis/oligomerisation followed by de-oligomerisation/cyclisation using superheated steam characterized in that the hydrolysis/oligomerisation is performed with superheated steam converting 6-aminocapronitrile into a molten phase and a gas phase comprising ammonia, ammonia is continuously separated off and the de-oligomerisation/cyclisation is performed by treating the molten phase further with superheated steam. The invention also relates to a process for the preparation of ε-caprolactam starting from 6-aminocapronitrile by hydrolysis/oligomerisation followed by de-oligomerisation/cyclisation characterized in that the preparation is performed in a horizontal scraped-surface reactor, the hydrolysis/oligomerisation is performed with superheated steam converting 6-aminocapronitrile into a molten phase and a gas phase comprising ammonia, ammonia is continuously separated off and the de-oligomerisation/cyclisation is performed by treating the molten phase further with superheated steam.

    Abstract translation: 本发明涉及一种从6-氨基己腈开始通过水解/低聚制备ε-己内酰胺,然后使用过热蒸汽进行脱低聚/环化的方法,其特征在于水解/低聚反应用过热蒸汽将6-氨基己腈转化成熔融 相和包含氨的气相,氨被连续分离,并且通过用过热蒸汽进一步处理熔融相进行脱低聚/环化。 本发明还涉及从6-氨基己腈开始制备ε-己内酰胺的方法,其通过水解/低聚,接着进行脱低聚/环化,其特征在于制备在水平刮面反应器中进行,水解/低聚是 使用过热蒸汽将6-氨基己腈转化成熔融相和包含氨的气相,连续分离氨,通过用过热蒸汽进一步处理熔融相进行脱低聚/环化。

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