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    Method for producing epoxy compound containing hydrogen peroxide stabilizer
    182.
    发明授权
    Method for producing epoxy compound containing hydrogen peroxide stabilizer 有权

    公开(公告)号：US10005742B2

    公开(公告)日：2018-06-26

    申请号：US15504054

    申请日：2015-08-11

    Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.

    Inventor： Kazuki Hirasada ,  Yutaro Tsuda

    IPC: C07D251/34 ,  C07D301/12 ,  C07D251/04 ,  C07D201/16

    CPC classification number: C07D251/34 ,  C07D201/16 ,  C07D251/04 ,  C07D301/12 ,  C07D405/14

    Abstract: The present invention provides a method for producing an epoxy compound by a reaction of an olefin compound with hydrogen peroxide, wherein the epoxy compound is stably and safely produced using a hydrogen peroxide stabilizer for reducing an oxygen gas generated from hydrogen peroxide. A method for producing an epoxy compound by a reaction of an olefin compound with hydrogen peroxide, wherein the reaction is carried out in the presence of an organophosphorus compound in such a reaction medium that the pH is maintained within a range of more than 7.5 and less than 12.0. The olefin compound may be 1,3,5-tris-(alkenyl)-isocyanurate. The alkenyl group in the olefin compound may be 3-butenyl group, 4-pentenyl group, 5-hexenyl group, 6-heptenyl group, or 7-octenyl group. The epoxy compound may be 1,3,5-tris-(epoxyalkyl)-isocyanurate. The reaction medium may be such a reaction medium that the pH is maintained within a range of 8.0 to 10.5.

    METHOD FOR PRODUCING EPOXY COMPOUND CONTAINING HYDROGEN PEROXIDE STABILIZER
    183.
    发明申请
    METHOD FOR PRODUCING EPOXY COMPOUND CONTAINING HYDROGEN PEROXIDE STABILIZER 有权

    公开(公告)号：US20170275258A1

    公开(公告)日：2017-09-28

    申请号：US15504054

    申请日：2015-08-11

    Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.

    Inventor： Kazuki HIRASADA ,  Yutaro TSUDA

    IPC: C07D251/34 ,  C07D201/16 ,  C07D251/04

    CPC classification number: C07D251/34 ,  C07D201/16 ,  C07D251/04 ,  C07D301/12 ,  C07D405/14

    Abstract: The present invention provides a method for producing an epoxy compound by a reaction of an olefin compound with hydrogen peroxide, wherein the epoxy compound is stably and safely produced using a hydrogen peroxide stabilizer for reducing an oxygen gas generated from hydrogen peroxide. A method for producing an epoxy compound by a reaction of an olefin compound with hydrogen peroxide, wherein the reaction is carried out in the presence of an organophosphorus compound in such a reaction medium that the pH is maintained within a range of more than 7.5 and less than 12.0. The olefin compound may be 1,3,5-tris-(alkenyl)-isocyanurate. The alkenyl group in the olefin compound may be 3-butenyl group, 4-pentenyl group, 5-hexenyl group, 6-heptenyl group, or 7-octenyl group. The epoxy compound may be 1,3,5-tris-(epoxyalkyl)-isocyanurate. The reaction medium may be such a reaction medium that the pH is maintained within a range of 8.0 to 10.5.

    Process for preparing purified caprolactam from the Beckmann rearrangement of cyclohexane oxime
    185.
    发明授权
    Process for preparing purified caprolactam from the Beckmann rearrangement of cyclohexane oxime 有权
    从Beckman重排环己酮肟制备纯己内酰胺的方法

    公开(公告)号：US08841445B2

    公开(公告)日：2014-09-23

    申请号：US14132082

    申请日：2013-12-18

    Applicant: BASF SE

    Inventor： Rolf-Hartmuth Fischer

    IPC: C07D201/16

    CPC classification number: C07D201/16

    Abstract: A process is described for preparing purified caprolactam, comprising the steps a) extraction of crude caprolactam, obtained from the Beckmann rearrangement of cyclohexanone oxime, with an organic extractant, b) removal of the organic phase from step a), c) distillative separation of the organic extractant from the organic phase from step b) giving rise to water-containing lactam extract, being preceded by addition of the distillative separation, aqueous alkali metal hydroxide solution in an amount of from 0 to 10 mmol/kg of caprolactam, d) addition of 0 to 30 mmol of alkali metal hydroxide/kg of caprolactam to the water-containing lactam extract from step c), e) distillative removal of water from the water-containing lactam extract treated with alkali metal hydroxide from step d), f) freeing the caprolactam from step e) from by-products lower- and higher-boiling than caprolactam by distillation, with addition in steps c) and d) together of at least 1.5 mmol of alkali metal hydroxide/kg of caprolactam.

    Abstract translation: 描述了制备纯化的己内酰胺的方法，其包括以下步骤：a）从有机萃取剂中提取由Beckmann重排环己酮肟得到的粗己内酰胺，b）从步骤a）中除去有机相，c）蒸馏分离 来自步骤b）的来自有机相的有机萃取剂产生含水内酰胺提取物，之前加入蒸馏分离，碱金属氢氧化物水溶液的量为0至10mmol / kg己内酰胺，d） 向来自步骤c）的含水内酰胺提取物中加入0至30mmol碱金属氢氧化物/ kg己内酰胺，e）从碱金属氢氧化物处理的含水内酰胺提取物中蒸馏除去水，步骤d），f ）通过蒸馏将己内酰胺从步骤e）中脱除副产物比己内酰胺更低沸点和更高沸点，在步骤c）和d）中加入至少1.5mmol碱金属氢氧化物/ k g己内酰胺。

    WASHING OF AN ORGANIC PHASE COMPRISING CAPROLACTAM
    188.
    发明申请
    WASHING OF AN ORGANIC PHASE COMPRISING CAPROLACTAM 有权
    有机相包装CAPROLACTAM的洗涤

    公开(公告)号：US20110224428A1

    公开(公告)日：2011-09-15

    申请号：US13060885

    申请日：2009-09-02

    Applicant: Theodorus Maria Smeets ,  Leonardus Joseph Raets ,  Cornelis Van Luijk

    Inventor： Theodorus Maria Smeets ,  Leonardus Joseph Raets ,  Cornelis Van Luijk

    IPC: C07D201/16 ,  B01J19/00

    CPC classification number: C07D201/16

    Abstract: The invention relates to a process for extracting an impurity from an organic phase comprising caprolactam, comprising extracting the impurity by washing said organic phase as a discontinuous phase with an aqueous phase as a continuous phase, the ratio of the flow of the aqueous phase in m3/hr, to the flow of the organic phase in m3/hr, being 0.05 or less. Further the invention relates to a caprolactam production plant, wherein use can be made of a process of the invention.

    Abstract translation: 本发明涉及一种从含有己内酰胺的有机相中提取杂质的方法，包括通过以水相作连续相洗涤作为不连续相的有机相萃取杂质，水相流量的比例（m3） / hr，有机相流量（m3 / hr）为0.05以下。 此外，本发明涉及己内酰胺生产设备，其中可以使用本发明的方法。

    Methods of Making Cyclic Amide Monomers and Related Derivatives
    189.
    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

    Applicant: Douglas A. Wicks

    Inventor： Douglas A. Wicks

    IPC: C07D223/12 ,  C07D201/08 ,  C07D201/16

    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。

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