Oxidation of Hydrocarbons
    265.
    发明申请
    Oxidation of Hydrocarbons 失效
    碳氢化合物的氧化

    公开(公告)号:US20100234589A1

    公开(公告)日:2010-09-16

    申请号:US12601549

    申请日:2008-07-11

    Abstract: In a process for oxidizing a hydrocarbon to a corresponding hydroperoxide, alcohol, ketone, carboxylic acid or dicarboxylic acid, the hydrocarbon is contacted with an oxygen-containing gas in the presence of a catalyst comprising a cyclic imide of the general formula (I): wherein each of R1 and R2 is independently selected from hydrocarbyl and substituted hydrocarbyl radicals having 1 to 20 carbon atoms, or from the groups SO3H, NH2, OH and NO2, or from the atoms H, F, Cl, Br and I provided that R1 and R2 can be linked to one another via a covalent bond; each of Q1 and Q2 is independently selected from C, CH, N and CR3; each of X and Z is independently selected from C, S, CH2, N, P and an element of Group 4 of the Periodic Table; Y is O or OH; k is 0, 1, or 2; 1 is 0, 1, or 2; m is 1 to 3, and R3 can be any of the entities listed for R1. The contacting produces an effluent comprising an oxidized hydrocarbon product and unreacted imide catalyst of formula (I) and the effluent is treated with an aqueous solution of a base to produce an aqueous phase comprising at least part of the unreacted imide catalyst of formula (I) and an organic phase comprising oxidized hydrocarbon product. The organic phase can then be recovered.

    Abstract translation: 在将烃氧化成相应的氢过氧化物,醇,酮,羧酸或二羧酸的方法中,烃在含有通式(I)的环状酰亚胺的催化剂存在下与含氧气体接触: 其中R 1和R 2各自独立地选自具有1至20个碳原子的烃基和取代的烃基,或者来自SO 3 H,NH 2,OH和NO 2基团,或者从原子H,F,Cl,Br和I 并且R 2可以通过共价键彼此连接; Q1和Q2中的每一个独立地选自C,CH,N和CR 3; X和Z各自独立地选自C,S,CH 2,N,P和元素周期表第4族的元素; Y为O或OH; k为0,1或2; 1是0,1或2; m为1至3,R3可为R1列出的任何实体。 接触产生包含氧化烃产物和式(I)的未反应酰亚胺催化剂的流出物,流出物用碱的水溶液处理以产生包含至少部分式(I)的未反应的酰亚胺催化剂的水相, 和包含氧化烃产物的有机相。 然后可以回收有机相。

    Catalytic Deamination for Caprolactam Production
    267.
    发明申请
    Catalytic Deamination for Caprolactam Production 有权
    己内酰胺生产催化脱氨

    公开(公告)号:US20100145003A1

    公开(公告)日:2010-06-10

    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。

    Method for making caprolactam from impure 6-amiocapronitrile
    269.
    发明申请
    Method for making caprolactam from impure 6-amiocapronitrile 失效
    从不纯的6-Amiocap腈制备己内酰胺的方法

    公开(公告)号:US20060211859A1

    公开(公告)日:2006-09-21

    申请号:US11083715

    申请日:2005-03-18

    CPC classification number: C07D223/10

    Abstract: The invention relates to the field of production of lactams from aminonitriles, and in particular to the production of ε-caprolactam by the vapor phase hydrolytic cyclization of 6-aminocapronitrile. A crude liquid caprolactam comprising ε-caprolactarn (CL), 6-aminocapronitrile (ACN) and water obtained from a vapor phase cyclization reaction of ACN is contacted with hydrogen in the presence of a hydrogenation catalyst to convert the ACN in the crude liquid caprolactam to a product comprising hexamethylenediamine (HMD) and hexamethyleneimine (HMI). Tetrahydroazepine (THA) in the crude liquid caprolactam is converted to HMI during this hydrogenation. The HMD and HMI have lower boiling points compared to ACN and thus they are more easily separated from CL in the subsequent distillation operations. Thus a process to make CL from ACN with fewer distillation stages, and with lower pressure drop and lower base temperature, is accomplished.

    Abstract translation: 本发明涉及由氨基腈生产内酰胺的领域,特别涉及通过6-氨基己腈的气相水解环化生产ε-己内酰胺。 包含ε-己内酯(CL),6-氨基己腈(ACN)和由ACN的气相环化反应获得的水的粗液体己内酰胺在氢化催化剂存在下与氢气接触,将粗液体己内酰胺中的ACN转化为 包含六亚甲基二胺(HMD)和六亚甲基亚胺(HMI)的产品。 粗制液体己内酰胺中的四氢吖庚因(THA)在该氢化期间转化为HMI。 与ACN相比,HMD和HMI具有较低的沸点,因此在随后的蒸馏操作中它们更容易与CL分离。 因此,实现了具有较少蒸馏阶段以及较低压降和较低基础温度的来自ACN的CL的方法。

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