PROCESS FOR PREPARING PHTHALIC ANHYDRIDE
    1.
    发明申请
    PROCESS FOR PREPARING PHTHALIC ANHYDRIDE 审中-公开
    用于生产苯酐

    公开(公告)号:WO2014207603A3

    公开(公告)日:2015-06-25

    申请号:PCT/IB2014062255

    申请日:2014-06-16

    CPC classification number: C07D307/89 C07C51/265 C07C51/313 C07C63/16

    Abstract: Disclosed is a process for preparing phthalic anhydride by gas phase oxidation of aromatic hydrocarbons, in which a gas stream comprising at least one aromatic hydrocarbon and molecular oxygen is passed continuously over a thermostatted catalyst and the supply of the at least one aromatic hydrocarbon to the catalyst is temporarily interrupted after putting the catalyst on stream.

    Abstract translation: 公开了一种用于通过芳族烃的气相氧化方法,其包括连续地使气体流,其含有至少一个芳族烃和分子氧在恒温催化剂和后催化剂的启动时,至少一个芳族烃的供给到制备邻苯二甲酸酐的方法 催化剂暂时中断。

    PROCESS FOR STARTING UP GAS PHASE OXIDATION REACTOR
    4.
    发明申请
    PROCESS FOR STARTING UP GAS PHASE OXIDATION REACTOR 审中-公开
    启动方法气相氧化反应器

    公开(公告)号:WO2014207604A3

    公开(公告)日:2015-06-25

    申请号:PCT/IB2014062256

    申请日:2014-06-16

    CPC classification number: C07D307/89 C07C51/265 C07C51/313 C07C63/16

    Abstract: Disclosed is a process for preparing carboxylic acids and/or carboxylic anhydrides by gas phase oxidation of aromatic hydrocarbon, in which a gas stream comprising at least one aromatic hydrocarbon and molecular oxygen is passed continuously over a catalyst thermostatted by a heat carrier medium, which comprises keeping the temperature of the heat carrier medium constant during the startup of the reactor for at least 24 hours, during which neither the loading of the gas stream with hydrocarbons nor the gas stream volume is increased by more than 3%.

    Abstract translation: 一种用于通过芳族烃的气相氧化来制备羧酸和/或羧酸酐,其中,引导气体流,其含有至少一个芳族烃和分子氧工艺中连续超过恒温由载热介质的催化剂来控制,其特征在于,所述热传递介质的过程中的温度 该反应器的启动进行至少24小时,在此期间,既没有气体流与烃的装载,也不是气体流量增加超过3%保持恒定。

    Procedimiento para la fabricación de anhídrido ftálico

    公开(公告)号:ES2705578T3

    公开(公告)日:2019-03-26

    申请号:ES14817018

    申请日:2014-06-16

    Applicant: BASF SE

    Abstract: Procedimiento para la fabricación de anhídrido ftálico mediante oxidación en fase gaseosa de hidrocarburos aromáticos, en el cual se conduce una corriente gaseosa que comprende por lo menos un hidrocarburo aromático y oxígeno molecular, de manera continua sobre un catalizador mantenido a temperatura constante, caracterizado porque después de la activación del catalizador, se suspende por un espacio de tiempo el suministro del por lo menos un hidrocarburo aromático al catalizador y al final del espacio de tiempo se reinicia el suministro del por lo menos un hidrocarburo aromático al catalizador y se ajusta la temperatura del medio caloportador a un valor superior al previo a la interrupción del suministro del hidrocarburo aromático al catalizador.

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