Process for the preparation of a microspheroidal catalyst
    1.
    发明授权
    Process for the preparation of a microspheroidal catalyst 失效
    制备微球状催化剂的方法

    公开(公告)号:US07166557B2

    公开(公告)日:2007-01-23

    申请号:US10502299

    申请日:2002-12-18

    摘要: Process for preparing a catalyst active for the fluid bed acetoxylation of ethylene to produce vinyl acetate. The process comprises the steps of (a) impregnating microspheroidal silica support particles by the incipient wetness technique with an aqueous solution of palladium and gold compounds, whilst agitating the support particles; (b) drying the impregnated support particles produced in step (a) whilst agitating the impregnated support particles; (c) reducing the palladium and gold compounds of the impregnated support particles produced in step (b) to respective metals by adding the dried, impregnated support particles to an aqueous solution of hydrazine, whilst stirring, to form a slurry; (d) filtration of the slurry produced in step (c) to remove the excess reduction solution; (e) washing the filter cake/slurry produced in step (d) with water and removing excess water to form a cake; (f) impregnating the cake produced in step (e) with one or more salts of Group I, Group II, lanthanide and transition metals by blending the cake produced in step (e) with one or more solid salts of Group I, Group II, lanthanide and transition metals; and (g) drying the impregnated cake produced in step (f) whilst agitating the impregnated cake to form free-flowing catalyst particles.

    摘要翻译: 制备催化剂用于乙烯流化床乙酰氧化制备乙酸乙烯酯的方法。 该方法包括以下步骤:(a)在搅拌载体颗粒的同时,用钯和金化合物的水溶液,通过初始湿度技术浸渍微球形二氧化硅载体颗粒; (b)在搅拌浸渍的载体颗粒的同时干燥步骤(a)中制备的浸渍的载体颗粒; (c)通过在搅拌下将干燥的浸渍的载体颗粒加入到肼的水溶液中,将步骤(b)中制备的浸渍的载体颗粒的钯和金化合物还原成各种金属,形成浆料; (d)过滤步骤(c)中产生的浆料以除去过量的还原溶液; (e)用水洗涤步骤(d)中生产的滤饼/浆料并除去多余的水以形成蛋糕; (f)将步骤(e)中产生的滤饼与步骤(e)中产生的滤饼与一种或多种I组II组固体盐混合,将步骤(e)中产生的滤饼与一种或多种I族,II族,镧系元素和过渡金属的盐 ,镧系元素和过渡金属; 和(g)在搅拌浸渍的滤饼以形成自由流动的催化剂颗粒的同时干燥步骤(f)中产生的浸渍饼。

    Catalyst composition and process for making same
    3.
    发明授权
    Catalyst composition and process for making same 有权
    催化剂组成及其制备方法

    公开(公告)号:US06806382B2

    公开(公告)日:2004-10-19

    申请号:US10336755

    申请日:2003-01-06

    IPC分类号: C07C6705

    摘要: A process for preparing a supported metal catalyst composition which comprises impregnating microspheroidal support particles with a solution of at least one catalytically active metal, or precursor, drying the impregnated support particles and then treating the mobile metal, or precursor in a mobile state with a liquid comprising at least one reducing agent to deposit and immobilize the metal, or its precursor, in the support particles such that the metal, or its precursor, is distributed in the support particle in a layer below the surface of the support particle, the layer being between an inner and an outer region having a lower concentration of metal or precursor. Also, a composition comprising microspheroidal support particles having at least one catalytically active metal or precursor thereof distributed in a layer below the surface of the particles, the layer being between an inner and an outer region of the support particle each having a lower concentration of metal or precursor.

    摘要翻译: 一种制备负载型金属催化剂组合物的方法,其包括用至少一种催化活性金属或前体的溶液浸渍微球载体颗粒,干燥浸渍的载体颗粒,然后用液体处理移动状态的可移动金属或前体 包括至少一种还原剂,以将金属或其前体沉积并固定在载体颗粒中,使得金属或其前体在载体颗粒表面下方的层中分布在载体颗粒中,该层为 在具有较低浓度的金属或前体的内部和外部区域之间。 另外,包含具有至少一种催化活性金属或其前体的微球支持颗粒的组合物分布在颗粒表面下方的层中,该层位于支撑颗粒的内部和外部区域之间,每个区域具有较低的金属浓度 或前体。

    Process for making a catalyst composition
    4.
    发明授权
    Process for making a catalyst composition 有权
    制备催化剂组合物的方法

    公开(公告)号:US06528453B2

    公开(公告)日:2003-03-04

    申请号:US09905204

    申请日:2001-07-16

    IPC分类号: B01J2300

    摘要: A process for preparing a supported metal catalyst composition which comprises impregnating microspheroidal support particles with a solution of at least one catalytically active metal, or precursor, drying the impregnated support particles and then treating the mobile metal, or precursor in a mobile state with a liquid comprising at least one reducing agent to deposit and immobilize the metal, or its precursor, in the support particles such that the metal, or its precursor, is distributed in the support particle in a layer below the surface of the support particle, the layer being between an inner and an outer region having a lower concentration of metal or precursor. Also, a composition comprising microspheroidal support particles having at least one catalytically active metal or precursor thereof distributed in a layer below the surface of the particles, the layer being between an inner and an outer region of the support particle each having a lower concentration of metal or precursor.

    摘要翻译: 一种制备负载型金属催化剂组合物的方法,其包括用至少一种催化活性金属或前体的溶液浸渍微球载体颗粒,干燥浸渍的载体颗粒,然后用液体处理移动状态的可移动金属或前体 包括至少一种还原剂,以将金属或其前体沉积并固定在载体颗粒中,使得金属或其前体在载体颗粒表面下方的层中分布在载体颗粒中,该层为 在具有较低浓度的金属或前体的内部和外部区域之间。 另外,包含具有至少一种催化活性金属或其前体的微球支持颗粒的组合物分布在颗粒表面下方的层中,该层位于支撑颗粒的内部和外部区域之间,每个区域具有较低的金属浓度 或前体。

    Process for making a catalyst
    5.
    发明授权
    Process for making a catalyst 有权
    制造催化剂的方法

    公开(公告)号:US07053024B2

    公开(公告)日:2006-05-30

    申请号:US10338673

    申请日:2003-01-09

    IPC分类号: B01J23/00

    摘要: Process for preparing a supported metal catalyst composition comprising impregnating support particles having a mean diameter of greater than 300 microns with a solution of least one catalytically active metal, or precursor thereof, such that the metal, or its precursor, is in a mobile state in the support particles; and drying the impregnated support particles. The mobile metal, or its precursor, in the support particles is then treated with a liquid comprising at least one reducing agent to deposit and immobilize the metal, or its precursor, in the support particles such that the metal, or its precursor, is distributed in the support particle in a layer below the surface of the support particle, the layer being between an inner and an outer region, each of the inner and outer regions having a lower concentration of the metal or precursor than the layer.

    摘要翻译: 制备负载型金属催化剂组合物的方法,包括用至少一种催化活性金属或其前体的溶液浸渍平均直径大于300微米的载体颗粒,使得金属或其前体处于可移动状态 载体颗粒; 并干燥浸渍的载体颗粒。 然后将载体颗粒中的可移动金属或其前体用包含至少一种还原剂的液体处理,以将金属或其前体沉积并固定在载体颗粒中,使得金属或其前体分布 在载体颗粒表面下方的载体颗粒中,该层位于内部和外部区域之间,每个内部区域和外部区域的金属或前体的浓度都低于该层。

    Process for the preparation of a microspheroidal catalyst
    6.
    发明申请
    Process for the preparation of a microspheroidal catalyst 失效
    制备微球状催化剂的方法

    公开(公告)号:US20050032638A1

    公开(公告)日:2005-02-10

    申请号:US10502299

    申请日:2002-12-18

    摘要: A process for impregnating microspheroidal catalyst support particles with at least one compound of a catalytically active group VIII noble metal, which process comprises the steps of: (a′) impregnating the microspheroidal support particles by the incipient wetness technique with an aqueous solution of the at least one catalytically active group VIII noble metal, whilst agitating the support particles; and (b′) drying the impregnated support particles produced in step (a′) whilst agitating the impregnated support particles. The microspheroidal support particles are preferably silica, alumina, zirconia or mixtures thereof. Where the catalytically active group VIII noble metal is palladium, the process may be used to prepare a catalyst active for the fluid bed acetoxylation of ethylene to produce vinyl acetate.

    摘要翻译: 一种使用至少一种催化活性VIII族贵金属化合物浸渍微球形催化剂载体颗粒的方法,该方法包括以下步骤:(a')用初始湿法技术用水溶液浸渍微球载体颗粒, 至少一种催化活性的VIII族贵金属,同时搅拌载体颗粒; 和(b')在搅拌浸渍的载体颗粒的同时干燥步骤(a')中产生的浸渍的载体颗粒。 微球状载体颗粒优选为二氧化硅,氧化铝,氧化锆或其混合物。 当催化活性基团VIII贵金属为钯时,该方法可用于制备用于乙烯流态床乙酰氧化反应生成乙酸乙烯酯的催化剂。

    LOAD MEASURING SYSTEM
    8.
    发明申请
    LOAD MEASURING SYSTEM 审中-公开
    负载测量系统

    公开(公告)号:US20140202776A1

    公开(公告)日:2014-07-24

    申请号:US14130269

    申请日:2012-07-03

    IPC分类号: G01G19/12 G01L5/16

    摘要: There is herein described a load measuring system. More particularly, there is described a load sensor and panel comprising at least one of said sensors for measuring and/or monitoring a load and/or distribution of a load.

    摘要翻译: 这里描述了负载测量系统。 更具体地,描述了负载传感器和面板,其包括用于测量和/或监视负载的负载和/或分配的所述传感器中的至少一个。

    Systems and methods for color data compression
    9.
    发明授权
    Systems and methods for color data compression 有权
    彩色数据压缩的系统和方法

    公开(公告)号:US08098942B2

    公开(公告)日:2012-01-17

    申请号:US12165596

    申请日:2008-06-30

    申请人: Peter Johnston

    发明人: Peter Johnston

    CPC分类号: H04N1/648

    摘要: Systems and methods are provided for reducing data size of at least one bitmap image, wherein the bitmap image comprises a plurality of color blocks, wherein each color block is associated with a distinct color plane. In some embodiments, the bitmap image may be compressed. At least one compressed color block that is contained in a transfer frame may be determined, based on information pertaining to a physical offset between successive color planes when they are rendered on a print medium. Further, at least one compressed color block in the transfer frame may be tagged, if the size of the transfer frame exceeds a threshold, and the resolution of the at least one compressed color block that is tagged may be reduced.

    摘要翻译: 提供了用于减少至少一个位图图像的数据大小的系统和方法,其中位图图像包括多个颜色块,其中每个颜色块与不同的颜色平面相关联。 在一些实施例中,位图图像可以被压缩。 可以基于当在打印介质上呈现连续色彩平面之间的物理偏移的信息时,确定包含在传送帧中的至少一个压缩颜色块。 此外,如果传输帧的大小超过阈值,则可以标记传送帧中的至少一个压缩颜色块,并且可以减少标记的至少一个压缩颜色块的分辨率。

    Method and apparatus for image alignment
    10.
    发明授权
    Method and apparatus for image alignment 有权
    用于图像对准的方法和装置

    公开(公告)号:US07619644B2

    公开(公告)日:2009-11-17

    申请号:US11479562

    申请日:2006-06-30

    申请人: Peter Johnston

    发明人: Peter Johnston

    IPC分类号: B41J2/435 B41J2/47

    摘要: Apparatus, systems, and methods presented herein allow for the alignment of images. In some embodiments, a plurality of PWM modules each receive input data and corresponding input phase-shifted clock signals. In some embodiments, each PWM module generates an output phase-shifted PWM signal based on the input data and its corresponding input phase-shifted clock signal. In some embodiments, a selector selects one of the output phase-shifted PWM signal based on timing relationships between an event signal and the phase-shifted clock signals.

    摘要翻译: 本文提出的装置,系统和方法允许图像的对准。 在一些实施例中,多个PWM模块各自接收输入数据和对应的输入相移时钟信号。 在一些实施例中,每个PWM模块基于输入数据及其对应的输入相移时钟信号产生输出相移PWM信号。 在一些实施例中,选择器基于事件信号和相移时钟信号之间的定时关系选择输出相移PWM信号之一。