Procsess for producing laurolactam from cyclododecanone
    281.
    发明公开
    Procsess for producing laurolactam from cyclododecanone 有权
    Verfahren zur Herstellung von Laurolactam aus Zyklododecanon

    公开(公告)号:EP1329448A1

    公开(公告)日:2003-07-23

    申请号:EP03000846.0

    申请日:2003-01-15

    CPC classification number: C07D201/06 C07D201/04

    Abstract: Laurolactam having high quality is produced by reacting cyclododecanone with a hydroxylamine salt of a mineral acid, and converting the resultant cyclododecanoneoxime to laurolactam through the Beckmann rearrangement reaction, wherein a content of each of oxygen atom-containing C 12 organic compounds, for example, cyclododecenone or epoxycyclododecane, and cycloaliphatic unsaturated C 12 hydrocarbon compounds, contained, as an impurity, in the staring cyclododecanone material, is controlled to 1,000 ppm or less.

    Abstract translation: 通过使环十二烷酮与无机酸的羟胺盐反应,通过贝克曼重排反应将所得的环十二烷酮肟转化成十二内酰胺,生成高品质的月桂内酰胺,其中含有氧原子的C12有机化合物,例如环十二酮或 环氧环十二烷和环脂肪族不饱和C12烃化合物被控制在1000ppm以下,作为杂质,作为起始环十二烷酮材料。

    Method for production of hydroxylamine sulfate in the conventional process for the synthesis of caprolactam
    282.
    发明公开
    Method for production of hydroxylamine sulfate in the conventional process for the synthesis of caprolactam 有权
    在常规方法中生产硫酸胲的用于合成己内酰胺的方法

    公开(公告)号:EP1013643A1

    公开(公告)日:2000-06-28

    申请号:EP99125632.2

    申请日:1999-12-22

    CPC classification number: C07D201/06 C07D201/10

    Abstract: An improvement in the conventional process for the production of caprolactam. The process involves:

    (a) reacting air with ammonia gas in an ammonia conversion zone to produce nitric oxide;
    (b) oxidizing a portion of the nitric oxide to nitrogen dioxide to produce an NO x -rich process gas stream;
    (c) reacting the NO x -rich stream with ammonium carbonate in a nitriting zone to produce ammonium nitrite;
    (d) reducing the ammonium nitrite to hydroxylamine diammonium sulfate;
    (e) hydrolyzing the hydroxylamine diammonium sulfate to hydroxylamine sulfate;
    (f) oximating the hydroxylamine sulfate with cyclohexanone to produce cyclohexanone oxime; and
    (g) converting the cyclohexanone oxime to caprolactam.
    The process is improved by adding supplemental oxygen downstream of the ammonia conversion zone to increase the quantity and rate of formation of nitrogen dioxide in the NO x -rich process gas stream.

    Abstract translation: 在传统工艺的改进生产己内酰胺的。 该过程包括:(a)在氨转化区反应用氨气空气以产生一氧化氮; (B)氧化所述一氧化氮的一部分以二氧化氮以生产富含NOx的反应气流; (C)反应与碳酸铵在亚硝化区中,以产生亚硝酸铵的富含NOx的物流; (D)降低了亚硝酸盐对羟胺二硫酸铵; (E)水解所述羟胺硫酸二铵到硫酸羟胺; (F)的肟化的硫酸胲用环己酮,以产生环己酮肟; 及(g)将所述环己酮肟为己内酰胺。 该过程通过加入氨转化区,以增加富含NOx反应气流中形成的二氧化氮的量和速率的下游补充氧气改善。

    시클로헥사논의 제조 방법
    284.
    发明公开
    시클로헥사논의 제조 방법 失效
    环己酮的制备方法

    公开(公告)号:KR1020070085836A

    公开(公告)日:2007-08-27

    申请号:KR1020077012801

    申请日:2005-11-30

    Abstract: The invention relates to a method for the preparation of cyclohexanone from cyclohexane. The invention relates more particularly to a method for the production of cyclohexane whose impurity content enables cyclohexanone to be used as a raw material for the production of e-caprolactam. The inventive method consists in treating the mixture of cyclohexanol/cyclohexanone arising from oxidation of cyclohexane by oxygen in a dehydrogenation stage in order to transform cyclohexanol into cyclohexanone and the impurities present such as cyclopentenal. The inventive method makes it possible to obtain highly pure cyclohexanone which is compatible when used as a raw material in the synthesis of e-caprolactam.

    Abstract translation: 本发明涉及从环己烷制备环己酮的方法。 本发明更具体地涉及一种生产环己烷的方法,其中杂质含量使得环己酮可用作生产ε-己内酰胺的原料。 本发明的方法是在脱氢阶段用氧处理由环己烷氧化产生的环己醇/环己酮的混合物,以便将环己醇转化成环己酮和存在的杂质如环戊烯醛。 本发明的方法使得可以获得在用作合成ε-己内酰胺的原料时相容的高纯度环己酮。

    라우로락탐의 제조방법
    286.
    发明公开
    라우로락탐의 제조방법 审中-实审
    月桂内酰胺的制备方法

    公开(公告)号:KR1020170135373A

    公开(公告)日:2017-12-08

    申请号:KR1020160067178

    申请日:2016-05-31

    Abstract: 본발명은라우로락탐(laurolactam)의제조방법에관한것으로, 좀더상세하게설명하자면, 출발물질인사이클로도데카논(cyclo dodecanone)에다아지드(azide) 화합물과반응용매, 그리고엑시드(acid) 화합물을순차적으로첨가하여원-포트반응(one-pot reaction)으로라우로락탐을제조하는방법에관한것이다.

    Abstract translation: 本发明涉及一种用于在楼内酰胺(月桂内酰胺),砂砾的制备更具体地,起始原料,二环喔EDA十二烷基佳能(环十二碳酮)叠氮化物(叠氮化物)化合物和反应溶剂,并超越(酸)化合物 通过一锅反应制备月桂内酰胺的方法。

    Production of lactams by ammoximation of cyclic ketones
    289.
    发明公开
    Production of lactams by ammoximation of cyclic ketones 有权
    Herstellung von Lactamen durch Ammoximierung zyklischer Ketone

    公开(公告)号:EP2098506A1

    公开(公告)日:2009-09-09

    申请号:EP08003291.5

    申请日:2008-02-22

    CPC classification number: C07D201/06 C07D201/02 C07D211/76

    Abstract: Present invention describes the direct catalytic liquid phase synthesis of caprolactam from cyclohexanone, hydrogen peroxide and ammonia.
    The invention can be carried out by using mesoporous materials amongst the MMS family (mesoporous molecular sieves) as catalysts, such as Ti-MCM-41, A1-MCM-41 and Ti-SBA-15 materials at temperatures between 20 and 120 °C.

    Abstract translation: 本发明描述了来自环己酮,过氧化氢和氨的己内酰胺的直接催化液相合成。 本发明可以通过使用MMS系列(介孔分子筛)中的介孔材料作为催化剂,例如Ti-MCM-41,Al-MCM-41和Ti-SBA-15材料,在20〜120℃的温度下进行 。

Patent Agency Ranking