PRODUCTION OF PHTHALIC ANHYDRIDE BY GAS PHASE OXIDATION OF o-XYLOL IN A PRIMARY AND A SECONDARY REACTOR
    1.
    发明申请
    PRODUCTION OF PHTHALIC ANHYDRIDE BY GAS PHASE OXIDATION OF o-XYLOL IN A PRIMARY AND A SECONDARY REACTOR 审中-公开
    制备通过邻二甲苯的气相氧化邻苯二甲酸酐IN头部和Nachreaktor

    公开(公告)号:WO2007135102A2

    公开(公告)日:2007-11-29

    申请号:PCT/EP2007054839

    申请日:2007-05-18

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

    Abstract: The invention relates to a method for producing phthalic anhydride by catalytic gas phase oxidation of o-xylol. According to said method, a gaseous mixture of o-xylol and an oxygen-containing gas is reacted in a primary reactor to give a gaseous intermediate reaction product which contains unreacted o-xylol, phthalic anhydride reaction products with a lower oxidation state and phthalic anhydride, the reaction heat produced in the primary reactor being at least partially carried off by indirect cooling with a heat exchange medium, and introducing the intermediate reaction product to a secondary reactor. The concentration of the unreacted o-xylol in the intermediate reaction product is at least 1% by weight, and the sum of the concentrations of phthalic anhydride of the lower oxidation state in the intermediate reaction product is at least 0.5% by weight. The method according to the invention allows an increase in total yield of phthalic anhydride without any or without substantial decrease in product quality.

    Abstract translation: 公开了一种用于由邻二甲苯,其包含邻二甲苯的含氧气体中的主反应器中的气体混合物,并以气态中间反应产物,其包含未转化的邻二甲苯,邻苯二甲酸酐欠氧化产物反应的催化气相氧化制备邻苯二甲酸酐的方法 和邻苯二甲酸酐,所述一个至少部分地耗散由间接冷却用载热介质,并导入中间反应产物分离成二级反应器在主反应器的反应热产生的热。 未反应的邻二甲苯中的中间反应产物中的浓度为至少1重量%,邻苯二甲酸酐产品欠氧化浓度的在中间反应产物中的总和为至少0.5重量%。 该方法允许增加邻苯二甲酸酐的总产没有或没有在产品质量上显著恶化。

    DEVICE FOR THE MIXING, DRYING AND COATING OF POWDERED, GRANULAR OR MOULDED BULK MATERIAL IN A FLUID BED AND METHOD FOR PRODUCTION OF SUPPORTED CATALYSTS WITH SUCH A DEVICE
    3.
    发明申请
    DEVICE FOR THE MIXING, DRYING AND COATING OF POWDERED, GRANULAR OR MOULDED BULK MATERIAL IN A FLUID BED AND METHOD FOR PRODUCTION OF SUPPORTED CATALYSTS WITH SUCH A DEVICE 审中-公开
    装置进行搅拌,流化床和工艺干燥和涂敷粉末状,颗粒状或形状BULK生产负载型催化剂使用这种装置

    公开(公告)号:WO2005030380A2

    公开(公告)日:2005-04-07

    申请号:PCT/EP2004010748

    申请日:2004-09-24

    Abstract: The invention relates to a device for the mixing, drying and coating of powdered, granular or moulded bulk material in a fluid bed, in particular, a method for the production of supported catalysts for gas phase oxidations, with a container (10), for holding the bulk goods, whereby a dished recess (17) is provided in a lower region (13) of the container (10), a central tube (27) for the introduction of a gas, whereby the central tube enters in an upper region (12) of the container (10), extending essentially axially downwards into the container (10) and opens out in the recess (17), an essentially annular deflector screen (29), fixed to the central tube (27) in the upper region (12) of the container (10), a guide ring (31), arranged in the lower region (13) of the container (10), which surrounds the central tube (27) over a part of the length thereof essentially concentrically with a separation (L) such that a first passage (34) is formed between the wall of the container (10) at the upper edge of the recess and the lower end (33) of the guide ring (31) and a second outlet (36) is formed between the deflector screen (29) and the upper edge (35) of the guide ring (31) and means for introduction of a fluid into the container (10), such as, for example, nozzles (21). Said device is characterised in that the external wall of the central tube (27) is at least partly provided with a non-stick coating (38). In a preferred embodiment the separation (L) between the wall of the central tube (27) and the wall of the guide ring (27) is greater than the open height (H3) of the first passage (34). The invention further relates to a method for the production of supported catalysts using such a device.

    Abstract translation: 本发明涉及一种用于一过程混合,干燥和涂层的粉状,粒状或成形松散物料在流化床中,特别是用于气相氧化的负载型催化剂的制备方法,包括容器(10),用于接收散装材料,其中,(在其下部13 )的容器(10)的具有用于供给气体,其中,所述中心管(在该容器的上部12)(10)进入所述容器中的碗状凹部(17)在前置式所看到的,中心管(27),位于所述 一个容器(10)基本上延伸轴向向下并进入凹槽(17)打开时,基本上环形的偏转防护罩(29)在容器(10)的上部区域(12)至所述中心管(27)是固定的, 布置成一个在所述容器的下部部分(13)的中心管(27)(10)导向环(31)在其长度的一部分基本上以一定距离(L),以便COLL同心 IBT,在凹部的上边缘(22)的容器(10)的壁和所述导向环(31),第一通路(34)的下端(33)(29)35之间以及Abweisschirrn之间和顶边( )所述导向环(31)的第二通道(36)的形成,以及用于将流体引入所述容器(10),例如喷嘴(21)。 本发明的装置的特征在于,所述中心管(27)的外壁至少部分地设置有减少附着的涂层(38)。 在一个优选的实施例中,中心管(27)和导向环(27)的所述壁的所述壁之间的距离(L)大于所述第一通道(34)的净高(H3)更大。 本发明还涉及一种使用这种装置的负载型催化剂的制备方法。

    MULTI-STEP METHOD FOR THE PRODUCTION OF CARBOXYLIC ACIDS AND/OR ANHYDRIDES WITH INTERMEDIATE SEPARATION
    4.
    发明申请
    MULTI-STEP METHOD FOR THE PRODUCTION OF CARBOXYLIC ACIDS AND/OR ANHYDRIDES WITH INTERMEDIATE SEPARATION 审中-公开
    用于中间分离制备羧酸和/或酸酐的多阶段方法

    公开(公告)号:WO2004014819A3

    公开(公告)日:2004-04-08

    申请号:PCT/EP0308838

    申请日:2003-08-08

    Inventor: ROSOWSKI FRANK

    CPC classification number: C07C51/265 C07C63/16

    Abstract: The invention relates to carboxylic acids and/or carboxylic acid hydrides which are produced in high yields by multi-step gas phase oxidation of an aromatic hydrocarbon. A mixture is produced in a first reaction stage containing intermediates with an oxidation stage lying between the aromatic hydrocarbon and the carboxylic acid or the carboxylic acid anhydride. The mixture is separated into intermediates of a low oxidation stage and intermediates of a high oxidation stage and intermediates of a high oxidation stage are oxidated in at least one further reaction stage in the absence of intermediates of a low oxidation stage to form the carboxylic acid and/or the carboxylic acid anhydride.

    Abstract translation: 羧酸和/或羧酸酐在通过芳族烃的多步骤气相氧化高产率制备,通过在第一反应步骤中制备,含有中间体与芳族烃和羧酸或羧酸酐氧化阶段,在该混合物之间的卧的混合物 中间低氧化态和中间高氧化态分离并在不存在中间低氧化成羧酸和/或羧酸酐的氧化在至少一个另外的反应阶段中的中间高氧化态。

    METHOD FOR PRODUCTION OF ETHYLENE OXIDE IN A MICROCHANNEL REACTOR
    5.
    发明申请
    METHOD FOR PRODUCTION OF ETHYLENE OXIDE IN A MICROCHANNEL REACTOR 审中-公开
    用于在微通道反应器生产乙烯

    公开(公告)号:WO2007122090A3

    公开(公告)日:2008-02-07

    申请号:PCT/EP2007053363

    申请日:2007-04-05

    CPC classification number: C07D301/10 B01J2219/00781

    Abstract: Method for production of ethylene oxide in a microchannel reactor, wherein an ethylene-containing material stream and an oxygen- or oxygen-source-containing material stream are fed to the microchannel reactor and the reaction to give ethylene oxide takes place in the catalyst-containing microchannel reactor. Alkyl halides are continuously fed to the microchannel reactor at a concentration of 0.3 to 50 ppm by volume with respect to the total volume stream of all material streams fed to the reactor.

    Abstract translation: 一种生产在微通道反应器中的环氧乙烷,其中,一个流和含有氧或含氧流的源的乙烯进料,所述微通道反应器中,并在含催化剂的微通道反应器中,转化为环氧乙烷,得到微通道反应器的烷基卤在O的浓度的过程, 3至50ppm,相对于所有的引入到反应器中的总电流体积连续地供给材料流动。

    7.
    发明专利
    未知

    公开(公告)号:BRPI0517850A

    公开(公告)日:2008-10-21

    申请号:BRPI0517850

    申请日:2005-11-16

    Applicant: BASF AG

    Abstract: Catalytic titanium dioxide mixtures comprising: a first anatase titanium dioxide having a BET surface area greater than 15 m2/g and a hydrogen uptake for the reduction of Ti4+ to Ti3+ of from 5 to 20 μmol/m2; and a second anatase titanium dioxide having a BET surface area less than or equal to 15 m2/g and a hydrogen uptake for the reduction of Ti4+ to Ti3+ of from 0.6 to 7 μmol/m2, processes for preparing catalysts containing the same, catalysts containing active compositions including such titanium dioxide mixtures on support materials, and catalyst systems using the same.

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