Process for improving the selectivity of an EO catalyst
    11.
    发明授权
    Process for improving the selectivity of an EO catalyst 有权
    提高EO催化剂选择性的方法

    公开(公告)号:US09174928B2

    公开(公告)日:2015-11-03

    申请号:US13456774

    申请日:2012-04-26

    摘要: Processes for the epoxidation of ethylene are provided in which, following start-up, an epoxidation catalyst is contacted with a feed comprising ethylene, oxygen, carbon dioxide in an amount below 2.0 vol. %, and a chloride moderator to achieve a desired work rate at a first operating temperature T1. The composition of the feed is subsequently adjusted (e.g., by decreasing the ethylene concentration, decreasing the oxygen concentration, increasing the carbon dioxide concentration and/or adjusting the concentration of the chloride moderator) so as to increase the first operating temperature T1 to a second operating temperature T2 while maintaining the desired work rate. As the catalyst activity declines, the composition of the feed is further adjusted so as to maintain the desired work rate at the second operating temperature T2.

    摘要翻译: 提供了用于环氧化乙烯的方法,其中在启动之后,将环氧化催化剂与包含乙烯,氧,二氧化碳的进料接触,其量低于2.0体积%。 %和氯化物调节剂,以在第一工作温度T1达到所需的加工速率。 随后调整进料的组成(例如,通过降低乙烯浓度,降低氧浓度,增加二氧化碳浓度和/或调节氯化物调节剂的浓度),以便将第一操作温度T1增加至第二 工作温度T2,同时保持所需的工作速率。 随着催化剂活性的降低,进料的组成进一步调节,以便在第二工作温度T2保持所需的加工速率。

    Process for the production of amino alcohols
    14.
    发明授权
    Process for the production of amino alcohols 有权
    制备氨基醇的方法

    公开(公告)号:US08835690B2

    公开(公告)日:2014-09-16

    申请号:US13984500

    申请日:2012-02-09

    申请人: Freddy Tjosas

    发明人: Freddy Tjosas

    摘要: The present invention relates to a process for the manufacture of APD and N-alkyl-APD wherein 1-CPD is reacted with aqueous ammonium or aqueous alkyl-amine under alkaline conditions and where the process is conducted in a continuous manner in a reactor comprising a tubular reactor wherein at least two reaction zones are established.

    摘要翻译: 本发明涉及制备APD和N-烷基-APD的方法,其中1-CPD在碱性条件下与铵水溶液或烷基胺水溶液反应,并且其中该方法以连续的方式在含有 管式反应器,其中建立至少两个反应区。

    Synthesis method of 3-methylamino-1, 2-propanediol
    15.
    发明授权
    Synthesis method of 3-methylamino-1, 2-propanediol 失效
    3-甲基氨基-1,2-丙二醇的合成方法

    公开(公告)号:US08519191B2

    公开(公告)日:2013-08-27

    申请号:US13142716

    申请日:2010-03-12

    IPC分类号: C07C213/04 C07C213/02

    摘要: A synthesis method of 3-methylamino-1,2-propanediol is disclosed in the invention, and it includes the following steps: (a) adding glycerin chlorohydrin, aqueous monomethylamine solution and an amination catalyst, namely NaOH solution and NaHCO3, into a reactor, mixing the material sufficiently, and allowing amination reaction to proceed in two temperature stages; (b) removing monomethylamine and water from the amination solution after the amination reaction is completed, filtering out the solid resultant, and feeding the filtrate into a still; (c) distilling under reduced pressure to obtain 3-methylamino-1,2-propanediol, wherein the vacuum for distillation under reduced pressure is equal to or greater than 0.099 MPa and the temperature is 130-160° C.

    摘要翻译: 本发明公开了3-甲基氨基-1,2-丙二醇的合成方法,其包括以下步骤:(a)将甘油氯醇,一甲胺水溶液和胺化催化剂即NaOH溶液和NaHCO 3加入到反应器 ,充分混合该材料,并允许胺化反应在两个温度阶段进行; (b)在胺化反应完成后从胺化溶液中除去一甲胺和水,过滤固体产物,并将滤液送入静止液中; (c)在减压下蒸馏得到3-甲基氨基-1,2-丙二醇,其中减压蒸馏的真空度等于或大于0.099MPa,温度为130-160℃。

    METHOD FOR PRODUCING POLYOLS CONTAINING AMINO GROUPS
    17.
    发明申请
    METHOD FOR PRODUCING POLYOLS CONTAINING AMINO GROUPS 审中-公开
    生产含有氨基团的多元醇的方法

    公开(公告)号:US20120184705A1

    公开(公告)日:2012-07-19

    申请号:US13498772

    申请日:2010-09-27

    摘要: The present invention provides a simple method with no processing for producing polyols based on amino group-containing starter compounds. Unless explicitly specified, polyols are understood to be polyether polyols, polyether ester polyols and also polyether ester amide polyols. The invention also provides the polyols obtainable by the method according to the invention and the use of the polyols according to the invention to produce polyurethane materials.

    摘要翻译: 本发明提供了一种基于含氨基起始化合物制备多元醇的方法。 除非另有明确规定,多元醇被理解为聚醚多元醇,聚醚酯多元醇以及聚醚酯酰胺多元醇。 本发明还提供可通过本发明的方法获得的多元醇以及根据本发明的多元醇的用途来生产聚氨酯材料。

    Catalyst and a process using the catalyst
    19.
    发明申请
    Catalyst and a process using the catalyst 审中-公开
    催化剂和使用催化剂的方法

    公开(公告)号:US20030162984A1

    公开(公告)日:2003-08-28

    申请号:US10374287

    申请日:2003-02-25

    摘要: A catalyst which comprises a carrier and silver deposited on the carrier, which carrier has a surface area of at least 1 m2/g, and a pore size distribution such that pores with diameters in the range of from 0.2 to 10 nullm represent at least 70% of the total pore volume and such pores together provide a pore volume of at least 0.27 ml/g, relative to the weight of the carrier; a process for the preparation of a catalyst which process comprises depositing silver on a carrier, wherein the carrier has been obtained by a method which comprises forming a mixture comprising: a) from 50 to 90% w of a first particulate null-alumina having an average particle size (d50) of from more than 10 up to 100 nullm; and b) from 10 to 50% w of a second particulate null-alumina having an average particle size (d50) of from 1 to 10 nullm; % w being based on the total weight of null-alumina in the mixture; and shaping the mixture into formed bodies and firing the formed bodies to form the carrier, and a process for the epoxidation of an olefin, which process comprises reacting an olefin with oxygen in the presence of a said catalyst.

    摘要翻译: 一种催化剂,其包含沉积在载体上的载体和银,该载体具有至少1m 2 / g的表面积,孔径分布使得直径在0.2-10μm范围内的孔表示至少70 相对于载体的重量,总孔体积的%和这些孔一起提供至少0.27ml / g的孔体积; 一种制备催化剂的方法,该方法包括在载体上沉积银,其中载体已经通过包括形成混合物的方法获得,所述方法包括:a)50-90%w的第一颗粒α-氧化铝,其具有 平均粒径(d50)大于10至100μm; 和b)10至50%w的平均粒径(d50)为1-10μm的第二颗粒状α-氧化铝; %w基于混合物中α-氧化铝的总重量; 并将混合物成型为成形体并焙烧成形体以形成载体,以及烯烃环氧化方法,该方法包括在所述催化剂存在下使烯烃与氧气反应。