Method of regenerating a catalyst
    1.
    发明授权
    Method of regenerating a catalyst 有权
    再生催化剂的方法

    公开(公告)号:US07811955B2

    公开(公告)日:2010-10-12

    申请号:US11719056

    申请日:2005-11-10

    IPC分类号: B01J38/52

    摘要: Platinum is applied on a carrier such as graphite to form a platinum catalyst. The catalyst becomes poisoned with a metal as a result of use of the catalyst in preparation of hydroxylammonium salts. A method of regenerating the catalyst dissolves the platinum and the metal in an acid. The method also adds ammonium sulfate to the acid to precipitate the platinum. The ammonium sulfate is a by-product of a commercial process to synthesize a caprolactam. Also, the method precipitates the platinum onto the carrier for reuse in the preparation of the hydroxylammonium salts and in preparation of the caprolactam.

    摘要翻译: 将铂施加到诸如石墨的载体上以形成铂催化剂。 由于在制备羟铵盐时使用催化剂,催化剂被金属中毒。 催化剂的再生方法在酸中溶解铂和金属。 该方法还向酸中加入硫酸铵以沉淀铂。 硫酸铵是合成己内酰胺的商业方法的副产物。 此外,该方法将铂沉淀在载体上用于制备羟基铵盐和制备己内酰胺。

    APPARATUS FOR TREATING PARTICLES
    2.
    发明申请
    APPARATUS FOR TREATING PARTICLES 审中-公开
    用于处理颗粒的装置

    公开(公告)号:US20090145355A1

    公开(公告)日:2009-06-11

    申请号:US12207884

    申请日:2008-09-10

    IPC分类号: B05C5/00

    CPC分类号: B01J2/30 B01J2/006

    摘要: An apparatus for treating a plurality of particles, such as ammonium sulfate, with a coating, such as a wax, to prevent caking of the particles. The apparatus includes a feed chute, a diffuser and an exit chute. An applicator is mounted adjacent a base of the diffuser for spraying the coating downwardly away from the diffuser into a predefined pattern. The exit chute includes a deflector for intersecting a curtain of particles falling from the diffuser and for redirecting the particles into the predefined pattern of the coating. A heating element is mounted to the deflector for maintaining a predetermined temperature of the deflector thereby preventing accumulation of the coating on the deflector.

    摘要翻译: 一种用诸如蜡的涂层处理多个颗粒如硫酸铵的装置,以防止颗粒结块。 该装置包括进料槽,扩散器和出口滑槽。 施加器安装在扩散器的基部附近,以将涂层向下远离扩散器喷射成预定图案。 出口滑道包括偏转器,用于与从扩散器落下的颗粒的帘子相交并用于将颗粒重定向到涂层的预定图案中。 加热元件安装在偏转器上,以保持偏转器的预定温度,从而防止涂层积聚在偏转器上。

    Anti-caking process
    3.
    发明授权
    Anti-caking process 失效
    防结块工艺

    公开(公告)号:US5885320A

    公开(公告)日:1999-03-23

    申请号:US827955

    申请日:1997-04-14

    CPC分类号: B01J2/30 Y10T428/2991

    摘要: Solids that, untreated, have a tendency to cake are treated with distillation bottoms that are liquid at about 60.degree. C. or less and are obtained from production of an alcohol having the formula:R2-R1-OH,wherein R1 is substituted or unsubstituted, branched, straight chain or cyclic, C.sub.4 to C.sub.12 and R2 is OH or H.

    摘要翻译: 未处理的具有蛋糕倾向的固体用约60℃或更低液体的蒸馏塔底处理,得自具有下式的醇:R2-R1-OH,其中R1是取代或未取代的 ,支链,直链或环状,C4至C12,R2为OH或H.

    Method of minimizing aldehyde-based impurities in a process stream
    5.
    发明授权
    Method of minimizing aldehyde-based impurities in a process stream 有权
    在工艺流中使醛基杂质最小化的方法

    公开(公告)号:US08211275B2

    公开(公告)日:2012-07-03

    申请号:US11816431

    申请日:2006-02-15

    IPC分类号: B01D3/34 C07C45/00

    摘要: Oxidation of an alkane to an alkanone in a process stream forms aldehyde-based impurities. A method of minimizing the aldehyde-based impurities introduces an amine into the process stream to minimize the aldehyde-based impurities. The amine interacts with the alkanone and the aldehyde-based impurities thereby forming heavy products. The method separates the heavy products from the alkanones to reduce a level of the aldehyde-based impurities. The process stream preferably includes cyclohexyl ketone as the alkanone and n-hexanal as the aldehyde-based impurity. The method is typically involved in synthesis of a caprolactam.

    摘要翻译: 在工艺流中将烷烃氧化成烷酮形成醛基杂质。 使醛基杂质最小化的方法将胺引入工艺流中以最小化醛基杂质。 胺与烷酮和醛基杂质相互作用,从而形成重质产物。 该方法将重质产物与烷酮分离,以降低醛基杂质的含量。 工艺流优选包括作为烷酮的环己基酮和作为醛基杂质的正己醛。 该方法通常参与己内酰胺的合成。

    METHOD OF MINIMIZING ALDEHYDE-BASED IMPURITIES IN A PROCESS STREAM
    6.
    发明申请
    METHOD OF MINIMIZING ALDEHYDE-BASED IMPURITIES IN A PROCESS STREAM 有权
    在过程流中最小化基于ALDEHYDE的污染物的方法

    公开(公告)号:US20090114522A1

    公开(公告)日:2009-05-07

    申请号:US11816431

    申请日:2006-02-15

    IPC分类号: B01D3/40

    摘要: Oxidation of an alkane to an alkanone in a process stream forms aldehyde-based impurities. A method of minimizing the aldehyde-based impurities introduces an amine into the process stream to minimize the aldehyde-based impurities. The amine interacts with the alkanone and the aldehyde-based impurities thereby forming heavy products. The method separates the heavy products from the alkanones to reduce a level of the aldehyde-based impurities. The process stream preferably includes cyclohexyl ketone as the alkanone and n-hexanal as the aldehyde-based impurity. The method is typically involved in synthesis of a caprolactam.

    摘要翻译: 在工艺流中将烷烃氧化成烷酮形成醛基杂质。 使醛基杂质最小化的方法将胺引入工艺流中以最小化醛基杂质。 胺与烷酮和醛基杂质相互作用,从而形成重质产物。 该方法将重质产物与烷酮分离,以降低醛基杂质的含量。 工艺流优选包括作为烷酮的环己基酮和作为醛基杂质的正己醛。 该方法通常参与己内酰胺的合成。

    Anti-caking solids
    7.
    发明授权
    Anti-caking solids 失效
    防结块固体

    公开(公告)号:US6015445A

    公开(公告)日:2000-01-18

    申请号:US837198

    申请日:1997-04-14

    CPC分类号: B01J2/30 Y10T428/2991

    摘要: Solids having a tendency to cake are treated with distillation heavies that are liquid at about 60.degree. C. or less and are obtained from production of a ketone having the formula:R.dbd.O,wherein R is substituted or unsubstituted, branched, straight chain or cyclic, C.sub.4 to C.sub.18. The solids so treated have a reduced tendency to cake.

    摘要翻译: 具有洗饼倾向的固体用约60℃或更低液体的蒸馏重质物进行处理,得自具有下式的酮的制备:R = O,其中R是取代或未取代的,支链的,直链的或直链的 循环,C4至C18。 如此处理的固体具有降低的蛋糕倾向。

    Anti-caking solids
    8.
    发明授权
    Anti-caking solids 失效
    防结块固体

    公开(公告)号:US5980601A

    公开(公告)日:1999-11-09

    申请号:US834077

    申请日:1997-04-14

    CPC分类号: B01J2/30 Y10T428/2991

    摘要: A substantially non-caking solid is treated with distillation bottoms that are liquid at about 60.degree. C. or less and are obtained from production of an alcohol having the formula:R2--R1--OH,wherein R1 is substituted or unsubstituted branched, straight chain or cyclic C.sub.4 to C.sub.12 and R2 is OH or H.

    摘要翻译: 基本上不结块的固体用在约60℃或更低温度下为液体的蒸馏塔底处理,并且由生产具有下式的醇获得:其中R1是取代或未取代的支链直链 或环C 4至C 12,R 2为OH或H.