PROCESS OF MAKING MODIFIED METALLOCENE CATALYST, CATALYST PRODUCED AND USE THEREOF
    2.
    发明申请
    PROCESS OF MAKING MODIFIED METALLOCENE CATALYST, CATALYST PRODUCED AND USE THEREOF 有权
    制备改性金属催化剂的方法及其生产和使用的催化剂

    公开(公告)号:US20130289227A1

    公开(公告)日:2013-10-31

    申请号:US13979541

    申请日:2012-01-12

    IPC分类号: C08F4/76

    摘要: Olefin polymerization catalysts or catalyst systems comprising a mixture, contact product, reaction product or complex comprising as elements or components: (A) at least one metallocene pre-catalyst compound or polymerization active metallocene compound; (B) at least one titanium containing metallocene compound; and when (A) is a metallocene pre-catalyst compound, (C) at least one activator; provided however: (I) the titanium-containing metallocene compound is inactive or substantially inactive for the polymerization of olefins prior to or concurrently with the use of the catalyst system for olefin polymerization. Also disclosed are processes for producing the catalyst system and polyolefins having desirable combinations of properties, including melt index and molecular weight distribution, which properties are particularly desirable for the manufacture of polyolefin film products, especially LLDPE film A preferred catalyst comprises a zirconium or hafnium metal containing metallocene, an inactivated titanocene and a SiO2 support carrier.

    摘要翻译: 烯烃聚合催化剂或包含混合物的接触产物,反应产物或络合物的催化剂体系包括:(A)至少一种茂金属预催化剂化合物或聚合活性茂金属化合物; (B)至少一种含钛的茂金属化合物; 当(A)为茂金属预催化剂化合物时,(C)至少一种活化剂; 但是提供:(I)在使用烯烃聚合催化剂体系之前或同时使用的含钛金属茂化合物在烯烃的聚合中是无活性的或基本上无活性的。 还公开了用于生产催化剂体系的方法和具有期望的性能组合(包括熔体指数和分子量分布)的聚烯烃,该性能对于制造聚烯烃薄膜产品,特别是LLDPE薄膜特别有利。优选的催化剂包括锆或铪金属 含有茂金属,失活的二茂钛和SiO 2载体载体。

    Catalyst on silica clad alumina support
    5.
    发明授权
    Catalyst on silica clad alumina support 有权
    二氧化硅包覆氧化铝载体上的催化剂

    公开(公告)号:US08673806B2

    公开(公告)日:2014-03-18

    申请号:US13143003

    申请日:2010-01-07

    IPC分类号: B01J21/00

    摘要: The invention concerns catalysts comprising (i) a cladded catalyst support comprising (a) a core which comprises alumina particles and (b) about 1 to about 40 weight percent silica cladding, based on the weight of the cladded catalyst support, on the surface of the core; the catalyst support having a BET surface area of greater than 20 m2/g and a porosity of at least about 0.2 cc/g; and (ii) 0.1 to 10 weight percent, based on the weight of the catalyst, of catalytically active transition metal on the surface of the cladded catalyst support; wherein the catalyst support has a normalized sulfur uptake (NSU) of up to 25 ?g/m2. The invention also concerns the production and use of such catalysts.

    摘要翻译: 本发明涉及催化剂,其包括(i)包覆的催化剂载体,其包含(a)包含氧化铝颗粒的芯和(b)基于包覆催化剂载体的重量的约1至约40重量%的二氧化硅包层, 核心; 所述催化剂载体具有大于20m 2 / g的BET表面积和至少约0.2cc / g的孔隙率; 和(ii)基于催化剂重量的0.1至10重量%的催化活性过渡金属在包覆的催化剂载体的表面上; 其中催化剂载体具有高达25g / m 2的归一化硫吸收(NSU)。 本发明还涉及这种催化剂的生产和使用。

    Catalyst on silica clad alumina support
    6.
    发明申请
    Catalyst on silica clad alumina support 有权
    二氧化硅包覆氧化铝载体上的催化剂

    公开(公告)号:US20150210784A1

    公开(公告)日:2015-07-30

    申请号:US13999217

    申请日:2014-01-30

    IPC分类号: C08F4/18 C08F4/22

    CPC分类号: C08F110/02 C08F4/69 C08F4/025

    摘要: The invention concerns catalysts comprising (i) a clad catalyst support comprising (a) a core which comprises alumina particles and (b) about 1 to about 40 weight percent silica cladding, based on the weight of the clad catalyst support, on the surface of the core; the catalyst support having a BET surface area of greater than 20 m2/g and a porosity of at least about 0.2 cc/g; and (ii) 0.1 to 10 weight percent, based on the weight of the catalyst, of catalytically active transition metal on the surface of the clad catalyst support; wherein the catalyst support has a normalized sulfur uptake (NSU) of up to 25 μg/m2. The invention also concerns the production and use of such catalyst.

    摘要翻译: 本发明涉及催化剂,其包括(i)包覆催化剂载体,其包含(a)包含氧化铝颗粒的芯,和(b)约1至约40重量%的二氧化硅包层,基于包覆催化剂载体的重量, 核心; 所述催化剂载体具有大于20m 2 / g的BET表面积和至少约0.2cc / g的孔隙率; 和(ii)基于催化剂重量的0.1至10重量%的催化活性过渡金属在包覆催化剂载体的表面上; 其中催化剂载体具有高达25μg/ m 2的归一化硫吸收(NSU)。 本发明还涉及这种催化剂的生产和使用。

    Apparatus and method for manufacturing corrugated boards
    7.
    发明授权
    Apparatus and method for manufacturing corrugated boards 有权
    波纹板制造装置及方法

    公开(公告)号:US07833376B2

    公开(公告)日:2010-11-16

    申请号:US11558741

    申请日:2006-11-10

    IPC分类号: B31F1/28

    摘要: A method and an apparatus for manufacturing corrugated boards are disclosed. The method may include the steps of supplying a first web of medium having a first and second sides, wherein each side of the first web having a plurality of flutes, and wherein each flute having a crest, applying a wetting agent and an adhesive composition in a sequential fashion to the plurality of flutes on the first side of the first web, and securing a second web of medium is to the plurality of crests on the first side of the first web to form a single-faced corrugated board.

    摘要翻译: 公开了一种用于制造瓦楞纸板的方法和装置。 该方法可以包括以下步骤:提供具有第一和第二侧面的第一介质网,其中第一网的每个侧面具有多个凹槽,并且其中每个凹槽具有顶部,将润湿剂和粘合剂组合物 与第一网的第一侧上的多个凹槽的顺序方式,并且将第二介质网固定到第一网的第一侧上的多个波峰以形成单面瓦楞纸板。

    Synthesis of non-cyclic aliphatic polyamines
    8.
    发明授权
    Synthesis of non-cyclic aliphatic polyamines 失效
    非环状脂肪族多胺的合成

    公开(公告)号:US5105015A

    公开(公告)日:1992-04-14

    申请号:US709944

    申请日:1991-06-04

    IPC分类号: C07C209/48

    CPC分类号: C07C209/48

    摘要: An improved process for selectively forming noncyclic, aliphatic polyamines from the corresponding aliphatic polynitriles by reacting the polynitrile with hydrogen at low temperature under a pressure of from 50 to 5,000 psi in a fixed bed reactor while continuously contacting the reactants with granular chromium and nickel promoted Raney.RTM. cobalt packed therein.

    摘要翻译: 通过在固定床反应器中在50至5000psi的压力下在低温下在低温下使聚腈与氢反应而选择性地形成非环状脂族多胺的改进方法,同时将反应物与颗粒状铬和镍连续接触促进Raney TM钴包装在其中。

    Catalyst supports having promoter oxide gradient, resulting catalyst and
method of making the supports
    9.
    发明授权
    Catalyst supports having promoter oxide gradient, resulting catalyst and method of making the supports 失效
    催化剂支持催化剂氧化物梯度,产生催化剂和制备载体的方法

    公开(公告)号:US5102850A

    公开(公告)日:1992-04-07

    申请号:US600374

    申请日:1990-10-17

    摘要: Catalysts which are suitable for auto exhaust use are made with a promoter oxide that is deposited in a concentration gradient. A solution of the promoter oxide precursor, e.g., cerous nitrate solution, is impreganted uniformly into the pore structure of a support which can be in the form of beads or extrudates to a level just below the full incipient wetness. The impregnated support is then treated with a gaseous base such as ammonia, under dynamic conditions such as tumbling (to insure uniformity), which causes the precipitation of the promoter oxide in the form of a radial concentration gradient. The resulting product is then dried and calcined at sufficiently high temperature to effect complete conversion of the promoter precursor to its oxide form, e.g., CeO.sub.2.

    摘要翻译: 适用于自动排气使用的催化剂是以浓度梯度沉积的助催化剂氧化物制成的。 促进剂氧化物前体,例如硝酸铈溶液的溶液均匀地注入支持物的孔结构中,所述支撑体的孔结构可以是珠或挤出物的形式,达到刚好低于全部初始湿度的水平。 然后在动态条件例如翻转(以确保均匀性)下,用气态碱如氨处理浸渍的载体,这导致助催化剂氧化物以径向浓度梯度的形式沉淀。 然后将所得产物干燥并在足够高的温度下煅烧以使助催化剂前体完全转化为其氧化物形式,例如CeO 2。

    Catalytic purification of fatty acid alkyl esters used in fuels
    10.
    发明授权
    Catalytic purification of fatty acid alkyl esters used in fuels 有权
    用于燃料的脂肪酸烷基酯的催化净化

    公开(公告)号:US09528059B2

    公开(公告)日:2016-12-27

    申请号:US14127583

    申请日:2012-05-22

    摘要: The process of this invention removes impurities from transesterification products comprising primarily fatty acid alkyl esters (FAAE) that are being processed for final fuel products, such as biodiesel. The inventive process is catalytic, and the resulting ester is suitable for use as biodiesel. Metal oxide and mixed metal oxide catalysts are particularly suitable. The invention is particularly suitable for treating fatty acid alkyl ester compositions comprising impurities such as glycerin, sterol glycosides, and/or triglyceride, diglyceride and/or monoglyceride. The invention is particularly useful in treating FAAE transesterification products made using homogeneous alkali catalysts. The treated ester exhibits improved performance under cold weather conditions, which can be measured by methods such as ASTM 7501 Cold Soak Filtration Test (CSFT).

    摘要翻译: 本发明的方法从主要由脂肪酸烷基酯(FAAE)包含的酯交换产物中除去杂质,这些脂肪酸烷基酯(FAAE)正在为最终燃料产物如生物柴油加工。 本发明的方法是催化的,所得的酯适合用作生物柴油。 金属氧化物和混合金属氧化物催化剂是特别合适的。 本发明特别适用于处理含有杂质如甘油,甾醇糖苷和/或甘油三酯,甘油二酯和/或甘油单酯的脂肪酸烷基酯组合物。 本发明特别可用于处理使用均相碱催化剂制备的FAAE酯交换反应产物。 处理的酯在寒冷天气条件下表现出改善的性能,其可以通过诸如ASTM 7501冷浸过滤测试(CSFT)的方法测量。