Catalyst composition
    12.
    发明授权

    公开(公告)号:US06579825B2

    公开(公告)日:2003-06-17

    申请号:US09992787

    申请日:2001-11-06

    Abstract: There is provided a catalyst carrier comprising a refractory inorganic material having a sodium solubilization rate no greater than 5 ppmw/5 minutes. There is further a catalyst comprising a refractory inorganic material carrier having a sodium solubilization rate no greater than 5 ppmw/5 minutes; and one or more catalytically reactive metals deposited on said carrier. There is also provided a catalyst suitable for the vapor phase production of alkylene oxide from olefins and oxygen comprising an alumina-based carrier having a sodium solubilization rate no greater than 5 ppmw/5 minutes; and catalytically reactive silver deposited on said carrier.

    Catalyst, a process for preparing the catalyst and a process for the production of an olefin oxide, a 1,2-diol, a 1,2 diol ether, or an alkanolamine
    14.
    发明授权
    Catalyst, a process for preparing the catalyst and a process for the production of an olefin oxide, a 1,2-diol, a 1,2 diol ether, or an alkanolamine 有权
    催化剂,制备催化剂的方法和制备烯烃氧化物,1,2-二醇,1,2-二醇醚或链烷醇胺的方法

    公开(公告)号:US08084390B2

    公开(公告)日:2011-12-27

    申请号:US11921610

    申请日:2006-06-06

    Abstract: A catalyst which comprises a carrier and silver deposited on the carrier, which carrier has a surface area of at least 1.3 m2/g, a median pore diameter of more than 0.8 μm, and a pore size distribution wherein at least 80% of the total pore volume is contained in pores with diameters in the range of from 0.1 to 10 μm and at least 80% of the pore volume contained in the pores with diameters in the range of from 0.1 to 10 μm is contained in pores with diameters in the range of from 0.3 to 10 μm; 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 95 weight percent of a first particulate a-alumina having a median particle size (d50) of from 5 to 100 μm; b) from 5 to 50 weight percent of a second particulate a-alumina having a d50 which is less than the d50 of the first particulate a-alumina and which is in the range of from 1 to 10 μm; and c) an alkaline earth metal silicate bond material; weight percent being based on the total weight of a-alumina in the mixture; and firing the mixture to form the carrier; a process for the epoxidation of an olefin, which process comprises reacting a feed comprising an olefin and oxygen in the presence of a said catalyst; and a process for preparing a 1,2-diol, a 1,2-diol ether or an alkanolamine.

    Abstract translation: 一种催化剂,其包含沉积在载体上的载体和银,该载体的表面积至少为1.3m 2 / g,中值孔径大于0.8μm,孔径分布为总共至少80% 孔体积包含在直径在0.1至10μm范围内的孔中,并且直径在0.1至10μm范围内的孔中所含的孔体积的至少80%包含在直径范围内的孔中 为0.3〜10μm; 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至95重量%的第一颗粒状α-氧化铝,其具有中间 粒度(d50)为5〜100μm; b)5至50重量%的具有小于第一颗粒α-氧化铝的d50并且在1至10μm范围内的d50的第二颗粒状α-氧化铝; 和c)碱土金属硅酸盐粘合材料; 重量百分比基于混合物中α-氧化铝的总重量; 并将混合物烧制成载体; 一种烯烃环氧化方法,该方法包括在所述催化剂存在下使包含烯烃和氧的进料反应; 和1,2-二醇,1,2-二醇醚或链烷醇胺的制备方法。

    Method for improving the selectivity of a catalyst and a process for the epoxidation of an olefin
    16.
    发明授权
    Method for improving the selectivity of a catalyst and a process for the epoxidation of an olefin 有权
    提高催化剂选择性的方法和烯烃环氧化方法

    公开(公告)号:US07485597B2

    公开(公告)日:2009-02-03

    申请号:US10606440

    申请日:2003-06-26

    Abstract: A method for improving the selectivity of a supported highly selective epoxidation catalyst comprising silver in a quantity of at most 0.17 g per m2 surface area of the support, which method comprises contacting the catalyst, or a precursor of the catalyst comprising the silver in cationic form, with a feed comprising oxygen at a catalyst temperature above 250° C. for a duration of up to 150 hours, and subsequently decreasing the catalyst temperature to a value of at most 250° C.; and a process for the epoxidation of an olefin, which process comprises contacting a supported highly selective epoxidation catalyst comprising silver in a quantity of at most 0.17 g per m2 surface area of the support, or a precursor of the catalyst comprising the silver in cationic form, with a feed comprising oxygen at a catalyst temperature above 250° C. for a duration of up to 150 hours, and subsequently decreasing the catalyst temperature to a value of at most 250° C. and contacting the catalyst with the feed comprising the olefin and oxygen.

    Abstract translation: 一种用于提高载体的高选择性环氧化催化剂的选择性的方法,该催化剂包含银量至多为0.17g / m 2表面积的载体,该方法包括使催化剂或包含阳离子型银的催化剂的前体 ,在催化剂温度高于250℃的情况下使用包含氧的进料持续长达150小时,随后将催化剂温度降至至多250℃的值。 和烯烃的环氧化方法,该方法包括使包含银的负载型高选择性环氧化催化剂以至少0.17g / m 2表面积的载体或包含阳离子形式的银的催化剂前体 使用在催化剂温度高于250℃的氧气的进料,持续长达150小时,随后将催化剂温度降至至多250℃,并将催化剂与包含烯烃的进料接触 和氧气。

    Process for preparing catalyst with improved catalytic properties
    18.
    发明授权
    Process for preparing catalyst with improved catalytic properties 有权
    具有改进催化性能的催化剂制备方法

    公开(公告)号:US06368998B1

    公开(公告)日:2002-04-09

    申请号:US09392523

    申请日:1999-09-09

    CPC classification number: B01J37/06 B01J23/50 C07D301/10

    Abstract: This invention relates to a process for the preparation of a catalyst having improved properties, the process comprising selecting a carrier, lowering the concentration of ionizable species present on the surface of the carrier, and depositing a catalytically effective amount of one or more catalytically reactive metals on the carrier. The invention further relates to catalyst made from the process.

    Abstract translation: 本发明涉及制备具有改进性能的催化剂的方法,该方法包括选择载体,降低存在于载体表面上的可离子化物质的浓度,以及沉积催化有效量的一种或多种催化活性金属 在载体上。 本发明还涉及由该方法制备的催化剂。

    Method of treating spontaneously combustible catalysts
    19.
    发明授权
    Method of treating spontaneously combustible catalysts 失效
    处理自燃可燃催化剂的方法

    公开(公告)号:US6093309A

    公开(公告)日:2000-07-25

    申请号:US931223

    申请日:1997-09-16

    Abstract: Self-heating characteristics of a spontaneously combustible catalyst are reduced by treating spontaneously combustible catalysts with oxygen-containing hydrocarbons having at least 12 carbon atoms. The treatment is particularly suitable for reducing the self-heating characteristics of sulfidable metal oxide(s)-containing catalysts, presulfurized catalysts, presulfided catalysts or reduced catalysts. When applied to sulfur-containing catalysts, the treatment gives a catalyst that has suppressed self-heating properties without substantially compromising sulfur retention or activity. Further hydrocracking catalysts treated by the oxygen-containing hydrocarbons give improved product yield. Further, a method of safely unloading a catalyst from a reactor is provided where the catalyst in the reactor is treated with a liquid mixture containing oxygen-containing hydrocarbon having at least 12 carbon atoms to wet the catalyst.

    Abstract translation: 通过用具有至少12个碳原子的含氧烃处理可自燃的催化剂来减少自发燃烧的催化剂的自加热特性。 该处理特别适用于降低含硫化金属氧化物催化剂,预硫化催化剂,预硫化催化剂或还原催化剂的自加热特性。 当应用于含硫催化剂时,该处理产生抑制自热性能而不显着损害硫保留或活性的催化剂。 通过含氧烃处理的其它加氢裂化催化剂提高了产物产率。 此外,提供了一种从反应器中安全卸载催化剂的方法,其中用含有至少12个碳原子的含氧烃的液体混合物处理反应器中的催化剂以润湿催化剂。

    Preparation of ethylene oxide and catalyst
    20.
    发明授权
    Preparation of ethylene oxide and catalyst 失效
    环氧乙烷和催化剂的制备

    公开(公告)号:US5929259A

    公开(公告)日:1999-07-27

    申请号:US977971

    申请日:1997-11-25

    Abstract: This invention relates to a process for preparing an ethylene oxide catalyst by depositing silver and one or more alkali metal promoters on an alpha alumina carrier in which a fired carrier body is impregnated with a source of titania in a liquid medium that upon heating yields titania and is then calcined to generate titania uniformly dispersed in the carrier in an amount of up to about 10 percent by weight, basis the total weight of the carrier, and subsequently drying the carrier having said silver and alkali metal supported thereon.

    Abstract translation: 本发明涉及一种通过在α氧化铝载体上沉积银和一种或多种碱金属助催化剂来制备环氧乙烷催化剂的方法,其中在液体介质中将烧制的载体体用二氧化钛源浸渍,其中加热时产生二氧化钛和 然后煅烧以产生均匀分散在载体中的二氧化钛,其量为载体总重量的至多约10重量%,随后干燥其上负载有所述银和碱金属的载体。

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