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    Process for preparing caprolactam by admixture of cyclohexanone oxime to a reaction mixture under turbulent flow conditions
    132.
    发明申请
    Process for preparing caprolactam by admixture of cyclohexanone oxime to a reaction mixture under turbulent flow conditions 有权
    通过在湍流条件下将环己酮肟与反应混合物混合制备己内酰胺的方法

    公开(公告)号：US20070060749A1

    公开(公告)日：2007-03-15

    申请号：US10557770

    申请日：2004-05-17

    Applicant: Theodorus Maria Smeets ,  Joannes Albertus Wilhelmus Lemmens ,  Frank Mostert ,  Peter Wei-Hae Cheng

    Inventor： Theodorus Maria Smeets ,  Joannes Albertus Wilhelmus Lemmens ,  Frank Mostert ,  Peter Wei-Hae Cheng

    IPC: C07D201/04

    CPC classification number: B01F5/0428 ,  B01F5/0415 ,  B01J19/26 ,  B01J2219/00164 ,  C07D201/04

    Abstract: The invention relates to a process for preparing caprolactam by admixture of cyclohexanone oxime to a reaction mixture comprising caprolactam and sulfuric acid using a mixing device, said mixing device comprising (i) a tube through which the reaction mixture can flow, and (ii) channels disposed around the tube, said channels opening into the tube, said process comprising: passing the reaction mixture through the tube, and feeding the cyclohexanone oxime into the reaction mixture through one or more of said channels, wherein Re>5000, Re being the Reynolds number as defined by ρ·V·D/η, wherein ρ=density (in kg/m3) of the reaction mixture that is fed to the tube V=velocity of the reaction mixture, V being defined as W/A, wherein W is the flow rate (in m3/s) of the reaction mixture that is fed into the tube and A is the cross section area of the tube (in m2) at the level where said channels open into the tube D=diameter of the tube at the level where said channels open into the tube (in m) η=viscosity of the reaction mixture that is fed into the tube (in Pa·s).

    Abstract translation: 本发明涉及通过使用混合装置将环己酮肟与包含己内酰胺和硫酸的反应混合物混合来制备己内酰胺的方法，所述混合装置包括（i）反应混合物可以流过的管，以及（ii）通道 所述方法包括：使反应混合物通过管，并通过一个或多个所述通道将环己酮肟进料到反应混合物中，其中Re> 5000，Re为雷诺数 其数值由rho.VD / eta定义，其中rho =加入到管中的反应混合物的密度（单位为kg / m 3）V =反应混合物的速度，V定义为 W / A，其中W是供给到管中的反应混合物的流速（以m 3 S / s），A为管的横截面积（m / 2）在所述通道打开到管中的水平面D =在其上的管的直径 所述通道通入管中（以m计）eta =进料到管中的反应混合物的粘度（Pa.s）。

    Process for preparation of epsilon-caprolactam
    134.
    发明授权
    Process for preparation of epsilon-caprolactam 失效
    ε-己内酰胺的制备方法

    公开(公告)号：US06894163B2

    公开(公告)日：2005-05-17

    申请号：US10466888

    申请日：2002-02-14

    Applicant: Takashi Tsunoda ,  Kenji Akagishi ,  Mitsuhiro Sekiguchi

    Inventor： Takashi Tsunoda ,  Kenji Akagishi ,  Mitsuhiro Sekiguchi

    IPC: B01J21/16 ,  B01J29/035 ,  B01J29/40 ,  C07D201/04

    CPC classification number: C07D201/04 ,  B01J21/16 ,  B01J29/035 ,  B01J29/40 ,  Y02P20/52 ,  Y02P20/584

    Abstract: ε-Caprolactam is produced by contacting cyclohexanone oxime with a solid acid catalyst in the gaseous phase to effect a rearrangement reaction of the cyclohexanone oxime. The solid acid catalyst is produced by calcining a dried catalyst precursor that can be a zeolite, a crystalline clay mineral and at least one substance selected from an inorganic oxide and a compound which forms the inorganic oxide by calcination. The inorganic oxide includes at least one element selected Groups 4, 13 and 14 of the Periodic Table, and the inorganic oxide excludes oxides contained in a crystalline form in the zeolite and the crystalline clay mineral. Alternately, the rearrangement reaction occurs in the presence of a polyhydric alcohol compound R1—O—R2—OH (where R1 represents C1-C5 alkyl or phenyl, and R2 represents C2-C5 alkylene).

    Abstract translation: 通过使环己酮肟与气相中的固体酸催化剂接触来制备ε-己内酰胺，以实现环己酮肟的重排反应。 固体酸催化剂通过煅烧可以是沸石的干燥催化剂前体，结晶粘土矿物和选自无机氧化物的至少一种物质和通过煅烧形成无机氧化物的化合物来制备。 无机氧化物包括选自元素周期表第4,13和14族中的至少一种元素，无机氧化物排除沸石和结晶粘土矿物中结晶形式的氧化物。 或者，重排反应发生在多元醇化合物R 1 -OR 2 -OH的存在下（其中R 1表示C

    Process for the preparation of .epsilon.-caprolactam
    135.
    发明授权
    Process for the preparation of .epsilon.-caprolactam 失效
    制备ε-己内酰胺的方法

    公开(公告)号：US5900482A

    公开(公告)日：1999-05-04

    申请号：US820095

    申请日：1997-03-19

    Applicant: Kouji Teramoto ,  Yu Kanda ,  Makoto Tezuka ,  Toshio Uchibori ,  Hidefumi Sano

    Inventor： Kouji Teramoto ,  Yu Kanda ,  Makoto Tezuka ,  Toshio Uchibori ,  Hidefumi Sano

    IPC: C07D201/04

    CPC classification number: C07D201/04

    Abstract: The present invention provides a method for producing .epsilon.-caprolactam, which comprises subjecting cyclohexene to a hydration reaction to obtain cyclohexanol, subjecting the cyclohexanol to a dehydrogenation reaction to obtain cyclohexanone, subjecting the cyclohexanone to an oxime-forming reaction to obtain cyclohexanone oxime, and subjecting the cyclohexanone oxime to a Beckmann rearrangement reaction to obtain .epsilon.-caprolactam, wherein methylcyclopentanones contained in the cyclohexanone subjected to the oxime-forming reaction are controlled to be not more than 400 ppm.According to the present invention, it is possible to produce .epsilon.-caprolactam having a quality not inferior to conventional quality at a low cost.

    Abstract translation: 本发明提供了ε-己内酰胺的制造方法，其包括使环己烯进行水合反应得到环己醇，使环己醇进行脱氢反应得到环己酮，使环己酮进行肟形成反应，得到环己酮肟， 使环己酮肟进行贝克曼重排反应，得到ε-己内酰胺，其中将进行了肟形成反应的环己酮中所含的甲基环戊酮控制为不大于400ppm。 根据本发明，可以以低成本生产质量不劣于常规质量的ε-己内酰胺。

    Synthesis of caprolactam
    139.
    发明授权
    Synthesis of caprolactam 失效
    己内酰胺的合成

    公开(公告)号：US4927924A

    公开(公告)日：1990-05-22

    申请号：US338015

    申请日：1989-04-14

    Applicant: Weldon K. Bell ,  Werner O. Haag

    Inventor： Weldon K. Bell ,  Werner O. Haag

    IPC: B01J29/40 ,  B01J29/65 ,  B01J29/70 ,  C07D201/04

    CPC classification number: B01J29/40 ,  C07D201/04 ,  B01J2229/26 ,  B01J2229/36 ,  B01J2229/42 ,  B01J29/65 ,  B01J29/70 ,  Y02P20/52

    Abstract: A process is provided for catalytically converting cyclohexanone oxime to epsilon caprolactam. The conversion is characterized by exceptionally high selectivity and reduced rate of catalyst aging, even at single pass conversion above 90 percent. The conversion catalyst is a medium pore size crystalline zeolite exemplified by ZSM-5 which has low acid activity. Recycling unconverted oxime provides excellent ultimate yield of caprolactam.

    Abstract translation: 提供了将环己酮肟催化转化成ε己内酰胺的方法。 该转化的特征在于特别高的选择性和降低的催化剂老化速率，甚至在单程转化率高于90％时。 转化催化剂是具有低酸活性的ZSM-5示例的中等孔径结晶沸石。 回收未转化的肟提供了极好的己内酰胺收率。

    Catalyzed oxime conversions
    140.
    发明授权
    Catalyzed oxime conversions 失效
    催化肟转化

    公开(公告)号：US4697010A

    公开(公告)日：1987-09-29

    申请号：US870822

    申请日：1986-06-05

    Applicant: Patrick E. McMahon

    Inventor： Patrick E. McMahon

    IPC: C07D201/04

    CPC classification number: C07D201/04

    Abstract: A process for the catalyzed conversion of oximes such as cyclohexanone oxime to amides such as caprolactam via a high conversion, high selectivity, long catalyst lifetime reaction over a HAMS-1B crystalline borosilicate-based catalyst composition.

    Abstract translation: 通过HAMS-1B结晶硼硅酸盐基催化剂组合物的高转化率，高选择性，长催化剂寿命反应，将肟如环己酮肟催化转化为酰胺如己内酰胺的方法。

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