Annealed and promoted catalyst
    2.
    发明申请
    Annealed and promoted catalyst 失效
    退火和促进催化剂

    公开(公告)号:US20040029725A1

    公开(公告)日:2004-02-12

    申请号:US10636113

    申请日:2003-08-07

    Abstract: A mixed metal oxide, which may be an orthorhombic phase material, is improved as a catalyst for the production of unsaturated carboxylic acids, or unsaturated nitrites, from alkanes, or mixtures of alkanes and alkenes, by: contacting with a liquid contact member selected from the group consisting of organic acids, alcohols, inorganic acids and hydrogen peroxide to form a contact mixture; recovering insoluble material from the contact mixture; calcining the recovered insoluble material in a non-oxidizing atmosphere; admixing the calcined recovered insoluble material with (i) at least one promoter element or compound thereof and (ii) at least one solvent for the at least one promoter element or compound thereof; removing the at least one solvent to form a catalyst precursor; and calcining the catalyst precursor.

    Abstract translation: 可以是斜方相材料的混合金属氧化物作为用于从烷烃或烷烃和烯烃的混合物生产不饱和羧酸或不饱和亚硝酸盐的催化剂,通过以下方式改进:与选自 由有机酸,醇,无机酸和过氧化氢组成的组合形成接触混合物; 从接触混合物中回收不溶物质; 在非氧化性气氛中煅烧回收的不溶物; 将煅烧回收的不溶物与(i)至少一种助催化剂元件或其化合物和(ii)至少一种用于至少一种助催化剂元件或其化合物的溶剂混合; 除去所述至少一种溶剂以形成催化剂前体; 并煅烧催化剂前体。

    Hollow cylindrical catalyst and a method for producing a maleic acid anhydride
    3.
    发明申请
    Hollow cylindrical catalyst and a method for producing a maleic acid anhydride 有权
    中空圆柱形催化剂和马来酸酐的制备方法

    公开(公告)号:US20030114688A1

    公开(公告)日:2003-06-19

    申请号:US10220703

    申请日:2002-09-05

    Abstract: A catalyst used in a process for preparing maleic anhydride by heterogeneously catalyzed gas-phase oxidation of a hydrocarbon having at least four carbon atoms by means of oxygen-containing gases comprises a catalytically active composition comprising vanadium, phosphorus and oxygen and has a essentially hollow cylindrical structure in which (a) the ratio of the height h to the diameter of the continuous hole d2 is not more than 1.5 and (b) the ratio of the geometric surface area Ageo to the geometric volume Vgeo is at least 2 mmnull1.

    Abstract translation: 用于通过使含氧气体具有至少四个碳原子的烃异构催化气相氧化制备马来酸酐的方法中使用的催化剂包括含有钒,磷和氧的催化活性组合物,并且具有基本中空的圆柱形 (a)连续孔d2的高度h与直径的比率不大于1.5,(b)几何表面积Ageo与几何体积Vgeo之比至少为2mm-1。

    Catalyst, method of producing the same and method of treating exhaust gas
    4.
    发明申请
    Catalyst, method of producing the same and method of treating exhaust gas 审中-公开
    催化剂,其制造方法和废气处理方法

    公开(公告)号:US20040241067A1

    公开(公告)日:2004-12-02

    申请号:US10806411

    申请日:2004-03-23

    Abstract: A catalyst, a method for producing the same, and a method for treating an exhaust gas are described. The catalyst comprises an oxide containing titanium, vanadium, phosphorus and oxygen. The method of producing a catalyst, comprises the steps of: (i) spinning a spinning liquid comprising an organic solvent, vanadium, phosphorus and a polymer of a titanium compound, to obtain a precursor, (ii) calcining the precursor. The method of treating an exhaust gas comprises a step of contacting an exhaust gas with the catalyst.

    Abstract translation: 对催化剂及其制造方法,废气处理方法进行说明。 催化剂包含含有钛,钒,磷和氧的氧化物。 制造催化剂的方法包括以下步骤:(i)纺丝包含有机溶剂,钒,磷和钛化合物的聚合物的纺丝液,得到前体,(ii)煅烧前体。 处理废气的方法包括使废气与催化剂接触的步骤。

    PHOSPHORUS/VANADIUM CATALYST PREPARATION
    5.
    发明申请
    PHOSPHORUS/VANADIUM CATALYST PREPARATION 有权
    磷/钒催化剂制备

    公开(公告)号:US20040229750A1

    公开(公告)日:2004-11-18

    申请号:US10438425

    申请日:2003-05-15

    Inventor: Arie Bortinger

    Abstract: A process for preparing a catalyst for maleic anhydride production wherein a null5 vanadium compound such as V2O5, an anhydrous phosphoric acid, and optionally promoters are admixed in an organic alcohol solvent, the admixture is rapidly brought to reflux and thereafter refluxed to reduced the vanadium compound to the desired degree, the reflux mixture is cooled, precursor crystals are separated by filtration and then dried and calcined.

    Abstract translation: 制备马来酸酐生产催化剂的方法,其中将+5钒化合物如V2O5,无水磷酸和任选的助催化剂混合在有机醇溶剂中,将混合物迅速回流,然后回流以还原钒 化合物至所需程度,将回流混合物冷却,通过过滤分离前体晶体,然后干燥并煅烧。

    Method for preparing heteropolyacid catalyst and method for producing methacrylic acid
    6.
    发明申请
    Method for preparing heteropolyacid catalyst and method for producing methacrylic acid 失效
    制备杂多酸催化剂的方法和生产甲基丙烯酸的方法

    公开(公告)号:US20010029233A1

    公开(公告)日:2001-10-11

    申请号:US09797683

    申请日:2001-03-05

    Abstract: A novel method for preparing a heteropolyacid catalyst containing a heteropolyacid composed of molybdophosphoric acid and/or molybdovanadophosphoric acid, or a salt of the heteropolyacid, is provided. The method comprises preparing an aqueous solution or aqueous dispersion which (1) contains the nitrogen-containing heterocyclic compound, nitrate anions and ammonium ions, (2) the ammonium ion content not exceeding 1.7 mols per mol of the nitrate anion content, and (3) the ammonium ion content not exceeding 10 mols per 12 mols of the molybdenum atom content by mixing raw materials containing the catalyst-constituting elements with the nitrogen-containing heterocyclic compound in the presence of water, drying and calcining the same. This heteropolyacid catalyst excels over conventional catalysts in performance, life and strength.

    Abstract translation: 提供了一种制备含有由钼磷酸和/或钼钒钒酸组成的杂多酸的杂多酸催化剂或杂多酸盐的新方法。 该方法包括制备(1)包含含氮杂环化合物,硝酸根阴离子和铵离子的水溶液或水分散体,(2)每摩尔硝酸根阴离子含量不超过1.7摩尔的铵离子含量,和(3 )通过在水存在下将含有催化剂构成元素的原料与含氮杂环化合物混合,干燥并煅烧,铵离子含量不超过10摩尔/ 12摩尔钼原子含量。 这种杂多酸催化剂在性能,寿命和强度方面优于常规催化剂。

    Vanadium/phosphorus mixed oxide catalyst
    7.
    发明申请
    Vanadium/phosphorus mixed oxide catalyst 失效
    钒/磷混合氧化物催化剂

    公开(公告)号:US20040162217A1

    公开(公告)日:2004-08-19

    申请号:US10779684

    申请日:2004-02-18

    Abstract: Active vanadium/phosphorus mixed oxide catalyst for the conversion of non-aromatic hydrocarbons, e.g., n-butane, into maleic anhydride. The catalyst is prepared from the catalyst precursor, that is, prepared by the reaction of a source of vanadium in an organic medium in the presence of a phosphorus source. The organic medium is (a) isobutyl alcohol or a mixture of isobutyl alcohol and benzyl alcohol and (b) a polyol. The catalyst precursor is transformed into the active catalyst by an activation process that includes a heat treatment that includes applying a temperature of up to 600null C.

    Abstract translation: 用于将非芳族烃例如正丁烷转化成马来酸酐的活性钒/磷混合氧化物催化剂。 催化剂由催化剂前体制备,即通过钒源在有机介质中在磷源的存在下反应制备。 有机介质是(a)异丁醇或异丁醇和苄醇的混合物,和(b)多元醇。 催化剂前体通过包括热处理的激活方法转化成活性催化剂,该热处理包括施加高达600℃的温度

    Preparation of maleic anhydride and catalyst for this purpose
    8.
    发明申请
    Preparation of maleic anhydride and catalyst for this purpose 审中-公开
    为此目的制备马来酸酐和催化剂

    公开(公告)号:US20040014990A1

    公开(公告)日:2004-01-22

    申请号:US10399153

    申请日:2003-04-14

    Abstract: A vanadium-, phosphorus- and oxygen-containing catalyst for the preparation of maleic anhydride by heterogeneously catalyzed gas-phase oxidation of a hydrocarbon of at least four carbon atoms has a phosphorus/vanadium ratio of from 0.9 to 1.5, comprises particles having a mean diameter of at least 2 mm and has a composition which, using CuKnull radiation (nullnull1.54null10null10 m), gives a powder X-ray diffraction pattern which, in the 2null range from 10null to 70null, has a signal/background ratio of null10 for all diffraction lines which are attributable to a vanadium- and phosphorus-containing phase. Said catalyst is prepared and is used for the preparation of maleic anhydride.

    Abstract translation: 用于通过异构催化气相氧化至少四个碳原子的烃来制备马来酸酐的含钒,磷和氧的催化剂具有0.9至1.5的磷/钒比率,包含具有平均值 直径至少为2mm,并且具有使用CuKalpha辐射(λ= 1.54.10〜10μm)的组成,得到粉末X射线衍射图,其在10°至70°的2θ范围内具有 对于归因于含钒和含磷相的所有衍射线,信号/背景比<= 10。 所述催化剂被制备并用于制备马来酸酐。

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