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    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

    Applicant: Michael James Baker ,  Peter Johnston ,  Dennis Murphy

    Inventor： Michael James Baker ,  Peter Johnston ,  Dennis Murphy

    IPC: B01J23/58 ,  B01J23/00 ,  B01J23/40 ,  B01J23/72 ,  B01J23/42

    CPC classification number: C02F1/70 ,  B01J21/08 ,  B01J23/52 ,  B01J23/58 ,  B01J37/0045 ,  B01J37/0201 ,  C02F2101/16

    Abstract: 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.

    Abstract translation: 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。

    Fluid bed vinyl acetate catalyst
    4.
    发明授权
    Fluid bed vinyl acetate catalyst 失效
    流化床乙酸乙烯酯催化剂

    公开(公告)号：US06358882B1

    公开(公告)日：2002-03-19

    申请号：US09455753

    申请日：1999-11-15

    Applicant: George Frederick Salem ,  Michael James Baker

    Inventor： George Frederick Salem ,  Michael James Baker

    IPC: B01J2300

    CPC classification number: B01J37/0205 ,  B01J23/58 ,  B01J23/63 ,  B01J35/002 ,  B01J35/006 ,  B01J35/023 ,  B01J35/1014 ,  B01J35/1038 ,  B01J35/1042 ,  B01J37/0045 ,  C07C67/055 ,  C07C69/01 ,  C07C69/15

    Abstract: A catalytically active material useful to prepare vinyl acetate monomer from ethylene, acetic acid, and an oxygen-containing gas under fluid bed conditions comprises a porous microspheroidal support containing catalytically active palladium crystallites finely dispersed within the support. This catalyst material does not require incorporation of gold to maintain activity and selectivity. A process to produce a vinyl acetate fluid bed catalyst in which catalytically active small palladium crystallites are finely dispersed within the support comprises dispersing selected metal species within the support which have an affinity to palladium to form very fine crystallites of palladium. The affinity metal species may be dispersed by impregnation onto a preformed microspheroidal support or may be intimately incorporated within the support before impregnation with a soluble palladium species.

    Abstract translation: 用于在流化床条件下从乙烯，乙酸和含氧气体制备乙酸乙烯酯单体的催化活性材料包括含有细分散在载体内的催化活性钯微晶的多孔微球载体。 该催化剂材料不需要掺入金以维持活性和选择性。 一种生产乙酸乙烯酯流化床催化剂的方法，其中催化活性的小钯微晶细分散在载体内，包括将选择的金属物质分散在载体中，其对钯具有亲合力，以形成非常细的钯微晶。 亲和金属物质可以通过浸渍分散到预形成的微球载体上，或者在用可溶性钯物质浸渍之前可以紧密地掺入载体内。

    Process for the production of vinyl acetate utilizing a recycle stream comprising acetic acid and water
    5.
    发明授权
    Process for the production of vinyl acetate utilizing a recycle stream comprising acetic acid and water 有权
    使用包含乙酸和水的循环流生产乙酸乙烯酯的方法

    公开(公告)号：US06225496B1

    公开(公告)日：2001-05-01

    申请号：US09363391

    申请日：1999-07-29

    Applicant: Michael James Baker ,  Timothy Crispin Bristow ,  Robert William Clarke ,  Simon James Kitchen ,  Bruce Leo Williams

    Inventor： Michael James Baker ,  Timothy Crispin Bristow ,  Robert William Clarke ,  Simon James Kitchen ,  Bruce Leo Williams

    IPC: C07C67055

    CPC classification number: C07C67/055 ,  C07C69/01 ,  C07C69/15

    Abstract: Process for the production of vinyl acetate in which ethylene, acid and oxygen-containing gas are combined at elevated temperature in the presence of a catalyst material to produce (i) a product mixture comprising vinyl acetate, (ii) a liquid by-product comprising acetic acid and (iii) a gaseous by-product comprising carbon dioxide. The liquid by-product is separated from the product mixture and treated to reduce the water content therein before being recycled to the reactor such that the water entering the reactor comprises less than 6 wt %, (preferably less than 4 wt %, more preferably less than 3 wt %) of the total of acetic acid and water entering the reactor.

    Abstract translation: 制备乙烯基乙酸酯的方法，其中乙烯，含酸和含氧气体在升高的温度下在催化剂材料存在下组合以产生（i）包含乙酸乙烯酯的产物混合物，（ii）液体副产物，其包含 乙酸和（iii）包含二氧化碳的气态副产物。 将液体副产物与产物混合物分离，并在再循环至反应器之前进行处理以减少其中的水含量，使得进入反应器的水包含小于6重量％（优选小于4重量％，更优选较少 超过3重量％）进入反应器的乙酸和水的总量。

    Process for making a catalyst
    8.
    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

    Applicant: Michael James Baker ,  John William Couves ,  Kenneth George Griffin ,  Peter Johnston ,  James Colin McNicol ,  George Frederick Salem

    Inventor： Michael James Baker ,  John William Couves ,  Kenneth George Griffin ,  Peter Johnston ,  James Colin McNicol ,  George Frederick Salem

    IPC: B01J23/00

    CPC classification number: B01J37/0201 ,  B01J35/0006 ,  B01J35/08 ,  C07C67/055 ,  C07C69/01 ,  C07C69/15

    Abstract: 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.

    Abstract translation: 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。

    Catalyst composition and process for making same
    10.
    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

    Applicant: Michael James Baker ,  John William Couves ,  Kenneth George Griffin ,  Peter Johnston ,  James Colin McNicol ,  George Frederick Salem

    Inventor： Michael James Baker ,  John William Couves ,  Kenneth George Griffin ,  Peter Johnston ,  James Colin McNicol ,  George Frederick Salem

    IPC: C07C6705

    CPC classification number: B01J37/0201 ,  B01J35/0006 ,  B01J35/08 ,  C07C67/055 ,  C07C69/01 ,  C07C69/15

    Abstract: 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.

    Abstract translation: 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。

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