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    Maleic anhydride process
    1.
    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

    申请人： Noel J. Bremer ,  Dennis E. Dria ,  Ernest C. Milberger ,  Patricia R. Blum ,  Mark L. Nicholas

    发明人： Noel J. Bremer ,  Dennis E. Dria ,  Ernest C. Milberger ,  Patricia R. Blum ,  Mark L. Nicholas

    IPC分类号： B01J27/198 ,  C07C51/215 ,  C07C51/25 ,  C07D307/60

    CPC分类号： C07C51/215 ,  B01J23/002 ,  B01J27/198 ,  C07C51/25 ,  C07C51/252 ,  B01J2523/00

    摘要： 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.

    摘要翻译： 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。

    In situ activation process for fluid bed oxidation catalysts
    3.
    发明授权
    In situ activation process for fluid bed oxidation catalysts 失效
    流化床氧化催化剂的原位活化方法

    公开(公告)号：US4748140A

    公开(公告)日：1988-05-31

    申请号：US685437

    申请日：1984-12-24

    申请人： Patricia R. Blum ,  Ernest C. Milberger ,  Mark L. Nicholas ,  Patricia A. Zock

    发明人： Patricia R. Blum ,  Ernest C. Milberger ,  Mark L. Nicholas ,  Patricia A. Zock

    IPC分类号： B01J27/198 ,  B01J37/16 ,  C07C51/215

    CPC分类号： C07C51/215 ,  B01J23/002 ,  B01J27/198 ,  B01J37/16 ,  B01J2523/00

    摘要： A process for activating fluid bed catalysts useful for producing maleic anhydride from 4 carbon atom hydrocarbons is provided including contacting the fluidized catalyst containing the mixed oxides of vanadium and phosphorus with oxygen and a reducing gas at least partially combustible with oxygen at elevated temperatures sufficient to cause such combustion, wherein the molar ratio of reducing gas to oxygen is greater than the stoichiometric ratio required for complete combustion of the reducing gas. Also provided are catalysts activated by the process of the invention, as well as a process for producing maleic anhydride utilizing the catalysts thus activated.

    摘要翻译： 提供一种活化用于从4个碳原子烃生产马来酸酐的流化床催化剂的方法，包括使含有钒和磷的混合氧化物的流化催化剂与氧气和至少部分可氧化的还原气体接触，所述还原气体在足以导致 这种燃烧，其中还原气体与氧气的摩尔比大于完全燃烧还原气体所需的化学计量比。 还提供了通过本发明的方法活化的催化剂，以及利用如此活化的催化剂生产马来酸酐的方法。

    Method for adding make-up fluid bed oxidation catalysts for fluid bed oxidation catalysts containing the mixed oxides of vanadium and phosphorus
    4.
    发明授权
    Method for adding make-up fluid bed oxidation catalysts for fluid bed oxidation catalysts containing the mixed oxides of vanadium and phosphorus 失效
    添加含有钒和磷的混合氧化物的流化床氧化催化剂的补充流化床氧化催化剂的方法

    公开(公告)号：US4518523A

    公开(公告)日：1985-05-21

    申请号：US472400

    申请日：1983-03-04

    申请人： Patricia R. Blum ,  Ernest C. Milberger ,  Mark L. Nicholas

    发明人： Patricia R. Blum ,  Ernest C. Milberger ,  Mark L. Nicholas

    IPC分类号： C07C51/215 ,  B01J27/14

    CPC分类号： C07C51/215

    摘要： A process is provided for activating fluidizable catalysts containing the mixed oxides of vanadium and phosphorus useful for the production of maleic anhydride from 4-carbon atom hydrocarbons and oxygen by subjecting the catalyst to fluidization conditions and contacting the fluidized catalyst with oxygen at a temperature at least 20.degree. C. greater than the temperature required to produce about 85 percent conversion of hydrocarbon. A process is also provided for adding make-up fluid bed catalyst to an equilibrated catalyst by introducing a calcined and unequilibrated make-up catalyst into the fluid bed vessel containing equilibrated catalyst, subjecting the mixture to fluidization conditions and contacting the fluidized catalyst mixture with oxygen at a temperature at least 20.degree. C. greater than the temperature required to produce about 85 percent conversion of the hydrocarbon. The catalysts so activated and a process for producing maleic anhydride from 4-carbon atom hydrocarbons is also provided.

    摘要翻译： 提供了一种用于激活含有钒和磷的混合氧化物的可流化催化剂的方法，其可用于从4-碳原子烃和氧生产马来酸酐，所述方法是使催化剂经过流化条件并使流化催化剂与氧在至少温度下接触 大于产生约85％碳氢化合物转化所需的温度。 还提供了一种方法，用于通过将煅烧和未平衡的补充催化剂引入含有平衡的催化剂的流化床容器中，将混合物进入流化条件并使流化催化剂混合物与氧接触而将补充流化床催化剂添加到平衡的催化剂中 在比产生约85％烃转化所需的温度高至少20℃的温度下进行。 还提供了如此活化的催化剂和由4-碳原子烃生产马来酸酐的方法。