知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

11 条记录 (耗时 0.024 秒)

    Process for preparing nonionic surfactants-oxyalkylation with promoted barium catalysts
    1.
    发明授权
    Process for preparing nonionic surfactants-oxyalkylation with promoted barium catalysts 失效
    用促进的钡催化剂制备非离子表面活性剂 - 烷氧基化的方法

    公开(公告)号：US4453023A

    公开(公告)日：1984-06-05

    申请号：US454573

    申请日：1982-12-30

    申请人： James H. McCain ,  Louis F. Theiling, Jr.

    发明人： James H. McCain ,  Louis F. Theiling, Jr.

    IPC分类号： C07C41/02 ,  B01F17/42 ,  B01J27/00 ,  B01J27/16 ,  B01J31/00 ,  B01J31/02 ,  B01J31/26 ,  C07B61/00 ,  C07C41/00 ,  C07C41/03 ,  C07C43/11 ,  C07C67/00 ,  C08G65/26 ,  B01J23/02

    CPC分类号： C08G65/2651 ,  C07C41/03

    摘要： The process for preparing nonionic surfactants wherein a narrower molecular weight distribution is obtained by the use of a barium catalyst which comprises reacting a reactive hydrogen compound selected from the group consisting of monohydric alcohols having from about 8 to about 20 carbon atoms and a difunctional polypropylene oxide polymer having an average molecular weight in the range of 1000 to 5000 with an alkylene oxide having 2 to 4 carbon atoms at a temperature at which the reaction proceeds in the presence of at least a catalytic amount of a barium salt selected from the group consisting of barium hydroxide, barium alkoxides, barium phenoxides, hydrates thereof or mixtures thereof and a catalytic amount of an oxyalkylation catalyst promoter.

    摘要翻译： 制备非离子表面活性剂的方法，其中通过使用钡催化剂获得较窄的分子量分布，该钡催化剂包括使选自具有约8至约20个碳原子的一元醇的反应性氢化合物与二官能聚环氧丙烷 在至少催化量的选自以下的钡盐的存在下，在反应进行的温度下，平均分子量为1000-5000的聚合物与具有2至4个碳原子的烯化氧反应， 氢氧化钡，烷氧化钡，苯氧化钡，其水合物或其混合物和催化量的烷氧基化催化剂促进剂。

    Alkylene oxide purification systems
    6.
    发明授权
    Alkylene oxide purification systems 有权
    环氧烷净化系统

    公开(公告)号：US08476464B2

    公开(公告)日：2013-07-02

    申请号：US13567135

    申请日：2012-08-06

    申请人： John F. Szul ,  James H. McCain ,  Floyd L. Pfeffer ,  Harvey E. Andresen ,  Phillip R. Fairchild ,  Kent E. Newman

    发明人： John F. Szul ,  James H. McCain ,  Floyd L. Pfeffer ,  Harvey E. Andresen ,  Phillip R. Fairchild ,  Kent E. Newman

    IPC分类号： C07D301/32

    CPC分类号： C07D301/32

    摘要： Embodiments of the present disclosure provide processes, columns, and systems for removing acetaldehyde from alkylene oxide in a feed stream and for providing an alkylene oxide-water stream that can be directly transferred to a glycol reaction process. The alkylene oxide purification column includes a first section to convert a feed stream into a gas phase portion and a liquid phase portion and a second section located in the column above the first section to separate alkylene oxide from the acetaldehyde, water, and other impurities that enter the second section from the first section.

    摘要翻译： 本公开的实施方案提供了用于从进料流中的环氧烷除去乙醛并提供可直接转移到二醇反应过程的环氧烷 - 水流的方法，塔和系统。 环氧烷纯化塔包括将进料流转化为气相部分和液相部分的第一部分和位于第一部分上方的塔中的第二部分，以将烯化氧与乙醛，水和其它杂质分离， 从第一部分输入第二部分。

    ALKYLENE OXIDE PURIFICATION SYSTEMS
    7.
    发明申请
    ALKYLENE OXIDE PURIFICATION SYSTEMS 有权
    亚烷基氧化物净化系统

    公开(公告)号：US20120302776A1

    公开(公告)日：2012-11-29

    申请号：US13567135

    申请日：2012-08-06

    申请人： John F. Szul ,  James H. McCain ,  Floyd L. Pfeffer ,  Harvey E. Andresen ,  Phillip R. Fairchild ,  Kent E. Newman

    发明人： John F. Szul ,  James H. McCain ,  Floyd L. Pfeffer ,  Harvey E. Andresen ,  Phillip R. Fairchild ,  Kent E. Newman

    IPC分类号： C07D301/32 ,  B01D3/00

    CPC分类号： C07D301/32

    摘要： Embodiments of the present disclosure provide processes, columns, and systems for removing acetaldehyde from alkylene oxide in a feed stream and for providing an alkylene oxide-water stream that can be directly transferred to a glycol reaction process. The alkylene oxide purification column includes a first section to convert a feed stream into a gas phase portion and a liquid phase portion and a second section located in the column above the first section to separate alkylene oxide from the acetaldehyde, water, and other impurities that enter the second section from the first section.

    摘要翻译： 本公开的实施方案提供了用于从进料流中的环氧烷除去乙醛并提供可直接转移到二醇反应过程的环氧烷 - 水流的方法，塔和系统。 环氧烷纯化塔包括将进料流转化为气相部分和液相部分的第一部分和位于第一部分上方的塔中的第二部分，以将烯化氧与乙醛，水和其它杂质分离， 从第一部分输入第二部分。

    Thermal process for removal of contaminants from process streams
    9.
    发明授权
    Thermal process for removal of contaminants from process streams 失效
    从工艺流中去除污染物的热处理

    公开(公告)号：US5563282A

    公开(公告)日：1996-10-08

    申请号：US410748

    申请日：1995-03-27

    申请人： James H. McCain ,  Alfred W. Naumann ,  Wei-Yeong Wang

    发明人： James H. McCain ,  Alfred W. Naumann ,  Wei-Yeong Wang

    IPC分类号： B01D53/14 ,  C02F1/02 ,  C07D301/10 ,  C07D301/32 ,  C07D307/04

    CPC分类号： C07D301/10 ,  B01D53/1425 ,  C02F1/02 ,  B01D2257/504 ,  C02F2103/18 ,  Y02C10/06 ,  Y02P20/152 ,  Y02P20/51

    摘要： A method of controlling the build-up of organic and/or inorganic contaminants (e.g., carbonates, nitrates, nitrites, and the like) in an aqueous process stream, comprising directing at least some of the contaminated stream to a heating means wherein at least some of the contaminants are decomposed. Thereafter, the decomposition products are removed and the purified stream is returned to the process. In a preferred embodiment, the process is an alkylene oxide manufacturing process, and the contaminated aqueous stream is the effluent from a catalyzed scrubbing system for removal of carbon dioxide. Organic contaminants are decomposed to carbon dioxide, which is flashed off; inorganic salts which are decomposed to gases are flashed off; inorganic salts which are not converted to gases are scrubbed out.

    摘要翻译： 控制在水性工艺流中有机和/或无机污染物（例如碳酸盐，硝酸盐，亚硝酸盐等）的累积的方法，包括将至少一些受污染的流引导至加热装置，其中至少 一些污染物被分解。 此后，除去分解产物并将纯化的物流返回至该方法。 在优选的实施方案中，该方法是环氧烷制备方法，并且污染的含水物流是来自用于除去二氧化碳的催化洗涤系统的流出物。 有机污染物被分解成二氧化碳，其被闪蒸掉; 被分解成气体的无机盐被闪蒸掉; 不转化为气体的无机盐被洗出来。