Maleic anhydride process
    62.
    发明授权
    Maleic anhydride process 失效
    马来酸酐工艺

    公开(公告)号:US4647673A

    公开(公告)日:1987-03-03

    申请号:US733441

    申请日:1985-05-13

    Abstract: A process is provided for the preparation of attrition resistant, microspheroidal fluid bed catalysts comprising the mixed oxides of vanadium and phosphorus in which a vanadium phosphorus mixed oxided catalyst precursor is densified, comminuted, formed into fluidizable particles and calcined under fluidization-type conditions. The present invention further provides the attrition resistant fluidizable catalysts prepared by the inventive process, and further provides a process for utilizing such attrition resistant catalysts in the production of maleic anhydride in the vapor phase by the oxidation of 4 carbon atom hydrocarbons.

    Abstract translation: 提供了一种制备耐磨耗的微球形流化床催化剂的方法,其包含钒和磷的混合氧化物,其中钒磷混合氧化催化剂前体致密化,粉碎,形成可流化颗粒并在流化型条件下煅烧。 本发明还提供了通过本发明方法制备的耐磨性可流化催化剂,并且还提供了通过氧化4个碳原子烃在气相中生产马来酸酐时利用这种耐磨催化剂的方法。

    Catalysts for the production of maleic anhydride by the oxidation of
butane
    65.
    发明授权
    Catalysts for the production of maleic anhydride by the oxidation of butane 失效
    用于通过丁烷氧化生产马来酸酐的催化剂

    公开(公告)号:US4515904A

    公开(公告)日:1985-05-07

    申请号:US537983

    申请日:1983-09-30

    Abstract: A process for the manufacture of a phosphorus-vanadium and phosphorus-vanadium-co-metal catalysts suitable for use in the manufacture of maleic anhydride from butane which process comprises reacting at a temperature of about 0.degree. C. to about 200.degree. C. a vanadium compound in an organic ether solvent having about 2 to about 10 carbon atoms with a phosphoryl halide in the presence of water or an aliphatic alcohol having from about 1 to about 8 carbon atoms, eliminating the solvent and activating the catalyst by the addition of butane or other hydrocarbon feedstock and a phosphorus compound at a temperature of about 300.degree. C. to about 500.degree. C. The catalysts are useful for the manufacture of maleic anhydride from butane feedstock.

    Abstract translation: 一种制备适用于从丁烷制备马来酸酐的磷钒和磷 - 钒 - 共 - 金属催化剂的方法,该方法包括在约0℃至约200℃的温度下反应a 钒化合物在具有约2至约10个碳原子的有机醚溶剂中与磷酰卤在水或具有约1至约8个碳原子的脂族醇的存在下反应,除去溶剂并通过加入丁烷来活化催化剂 或其他烃原料和磷化合物在约300℃至约500℃的温度下进行。催化剂可用于从丁烷原料制造马来酸酐。

    Catalysts for the production of maleic anhydride by the oxidation of
butane
    67.
    发明授权
    Catalysts for the production of maleic anhydride by the oxidation of butane 失效
    用于通过丁烷氧化生产马来酸酐的催化剂

    公开(公告)号:US4416802A

    公开(公告)日:1983-11-22

    申请号:US382180

    申请日:1982-05-26

    CPC classification number: C07C51/215 B01J23/002 B01J27/198 B01J2523/00

    Abstract: A process for the manufacture of a phosphorus/vanadium/metal oxide catalyst suitable for the oxidation of butane to maleic anhydride can be prepared by reacting in an aqueous medium a vanadium compound, inorganic acid and metal oxide, then adding orthophosphoric acid to form a soluble vanadium phosphorus metal oxide catalyst, removing the acidified water and adding an aliphatic alcohol, removing the alcohol and recovering under vacuum the solid phosphorus vanadium metal oxide catalyst.

    Abstract translation: 制备适于将丁烷氧化成马来酸酐的磷/钒/金属氧化物催化剂的方法可以通过在水性介质中使钒化合物,无机酸和金属氧化物反应,然后加入正磷酸形成可溶的 钒磷金属氧化物催化剂,除去酸化水并加入脂肪醇,除去醇并在真空下回收固体磷钒金属氧化物催化剂。

    Process for the preparation of fluidizable catalysts
    68.
    发明授权
    Process for the preparation of fluidizable catalysts 失效
    制备可流化催化剂的方法

    公开(公告)号:US4400306A

    公开(公告)日:1983-08-23

    申请号:US392961

    申请日:1982-06-28

    Abstract: A process is provided for preparing supported catalysts by impregnating a pre-formed support with a solution of a metal alkoxide and contacting the impregnated support with a solution of at least one additional catalyst component. This process is particularly suitable for forming attrition resistant fluidizable catalysts. Catalysts prepared by this method are useful in various reaction processes, and may be utilized in oxidation processes such as the production of maleic anhydride from 4 carbon atom hydrocarbons.

    Abstract translation: 提供了一种通过用金属醇盐溶液浸渍预形成的载体并将浸渍的载体与至少一种另外的催化剂组分的溶液接触来制备负载型催化剂的方法。 该方法特别适用于形成耐磨性可流化催化剂。 通过该方法制备的催化剂可用于各种反应过程中,可用于氧化方法如从4个碳原子烃生产马来酸酐。

    Solid-solution type crystalline oxides and their precursors
    70.
    发明授权
    Solid-solution type crystalline oxides and their precursors 失效
    固溶体型结晶氧化物及其前体

    公开(公告)号:US4337173A

    公开(公告)日:1982-06-29

    申请号:US189346

    申请日:1980-09-22

    Applicant: Masayuki Otake

    Inventor: Masayuki Otake

    Abstract: A substitutional solid-solution type crystalline oxide represented by the general formula:[(V.sub.1-x-y-z Fe.sub.x Cr.sub.y Al.sub.z)O].sub.2 P.sub.2 O.sub.7wherein 0.ltoreq.x.ltoreq.0.40, 0.ltoreq.y.ltoreq.0.40, 0.ltoreq.z.ltoreq.0.40, and 0

    Abstract translation: 由以下通式表示的取代固溶体型结晶氧化物:[(V1-xy-zFexCryAlz)O] 2 P2O7,其中0≤x≤0.40,0≤y≤0.40,0 < 并且具有与(VO)2 P 2 O 7相同的晶体结构和具有特定结晶结构的前体取代的固溶体型结晶氧化物。 前述氧化物作为气相氧化催化剂具有高活性和选择性,特别是从含有四个碳原子的烃生产马来酸酐。

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