COLUMN WITH MULTIPLE SHAFTS
    3.
    发明申请
    COLUMN WITH MULTIPLE SHAFTS 审中-公开
    多轴柱

    公开(公告)号:WO0154785A3

    公开(公告)日:2001-12-27

    申请号:PCT/EP0100348

    申请日:2001-01-12

    CPC classification number: B01D3/141 B01D3/14

    Abstract: The invention relates to a column for separating mixtures containing at least three substances. Said column comprises an outer enclosure which delimits the inner area of the column, at least one column lid (5) and several subchambers (3, 4) which extend over a section of the longitudinal extension of the column and open into the inner area of the column at one end. One subchamber is configured in the form of a feed chamber (3) to which the mixture to be separated is delivered. The column also comprises at least one recombination chamber (8) which adjoins the opening of at least two subchambers (3, 4) leading into the inner area of the column. The mixture to be separated is delivered to the feed chamber at a point that is set apart from the open of said feed chamber (3), in such a way that the feed chamber forms a concentrating column (3a) in the section adjoining the delivery point on one side and forms a column stripper in the section (3b) adjoining the delivery point on the other side. As a result, complex mixtures can be separated into pure fractions and the invention is simpler than series-connected columns in terms of equipment and energy.

    Abstract translation: 本发明涉及一种柱用于分离至少三种物质的混合物,其具有外,在该列的限制包络(1)和至少一列盖(5),以及多个延伸超过柱的纵向延伸的一部分的,一侧的内部空间 列开放部分腔室的内部(3,4),其中,一个子腔室被形成为被供给待分离混合物的进料室(3),和至少一个组合的腔(8)延伸至所述引导进入的列开口的内 至少两个子室(3,4)连接。 其特征在于,混合物的供应被分离成所述进料室(3)间隔开的一个位置到所述入口室(3)以这样的方式进行的开放端,在所述引线部的比所述位置在随后的所述一个侧的入口室 加强桩(3a)的形成,并且其中在供水管道部分(3b)中的位置的另一侧随后被设计为汽提塔,多组分混合物可以分解成更纯的级分,其中所述设备和对串联连接的列中的能量消耗被降低。

    OXIDATION OF O-XYLOL TO PRODUCE O-TOLYL ACID
    4.
    发明申请
    OXIDATION OF O-XYLOL TO PRODUCE O-TOLYL ACID 审中-公开
    将O-木聚糖氧化为O-甲苯酸

    公开(公告)号:WO0155073A3

    公开(公告)日:2001-12-20

    申请号:PCT/EP0100707

    申请日:2001-01-23

    CPC classification number: C07C51/265 C07C63/16

    Abstract: The invention relates to a method for oxidizing o-xylol with oxygen, preferably mixed with an inert gas, especially air, while adding a catalyst, in order to produce a mixture of oxidation products of the o-xylol. The selectivity of the reaction can be increased by adding an aldehyde to the o-xylol.

    Abstract translation: 本发明涉及一种用氧气氧化邻二甲苯的方法,该氧气优选与惰性气体,特别是空气混合并加入催化剂,与邻二甲苯氧化产物的混合物反应。 通过向邻二甲苯中加入醛可以提高反应的选择性。

    METHOD FOR PRODUCING PHTHALIC ACID ANHYDRIDE
    7.
    发明申请
    METHOD FOR PRODUCING PHTHALIC ACID ANHYDRIDE 审中-公开
    用于生产苯酐

    公开(公告)号:WO0155072A3

    公开(公告)日:2001-12-20

    申请号:PCT/EP0100303

    申请日:2001-01-11

    CPC classification number: C07C51/265 B01D3/141 C07C51/46 C07C63/16

    Abstract: The invention relates to a method for producing phthalic acid anhydride. In a first step, o-xylol is partially oxidized with oxygen in a reactor in the liquid phase and in the presence of an added catalyst, said oxygen being optionally mixed with an inert gas. A fraction containing unreacted xylol is distilled off from the partially oxidized mixture and returned to the first step. In a second step, the partially oxidized mixture enriched with xylol is oxidized in the gas phase to produce phthalic acid anhydride. According to the invention, toluol is separated from the fraction containing the unreacted xylol that was distilled off, preferably in the form of an azeotrope with water. By separating off the toluol, it is possible to prevent the formation of hot spots in the second step of the reaction, which improves the selectivity of the reaction overall.

    Abstract translation: 本发明涉及一种用于在反应器中通过加入与氧的催化剂的液相中混合有惰性气体制备邻苯二甲酸酐,在第一步骤中邻二甲苯,可选地,被部分氧化,将含有未反应的二甲苯的级分 包含来自部分氧化的混合物中蒸出,并且所述第一阶段被反馈,且在二甲苯中的气相中邻苯二甲酸酐的第二步骤贫化部分氧化的混合物中被氧化。 根据本发明,从含有甲苯蒸馏,未反应的邻二甲苯级分,优选分离为与水的共沸物。 甲苯的除去,热点的形成防止了在反应,由此实现的总体反应的更好的选择性的第二阶段。

    PROCEDIMIENTO PARA LA OXIDACION CATALITICA EN FASE GASEOSA PARA DAR ANHIDRIDO DEL ACIDO FTALICO.

    公开(公告)号:ES2221639T3

    公开(公告)日:2005-01-01

    申请号:ES01907432

    申请日:2001-01-10

    Applicant: BASF AG

    Abstract: Procedimiento para la obtención de anhídrido del ácido ftálico mediante oxidación en fase gaseosa, con catálisis heterogénea, en un reactor con alimentación (1) para la mezcla de la reacción en un extremo del reactor y descarga (2) en el extremo opuesto del reactor así como placas intercambiadoras de calor (8) dispuestas en la cavidad interior del reactor, que están recorridas por un agente caloportador, para la disipación de los calores de la reacción, llevándose a cabo la disipación de los calores de la reacción mediante refrigeración por ebullición bajo presión, y las placas intercambiadoras de calor (8) están formadas por al menos dos chapas metálicas unidas herméticamente en la periferia y apoyadas entre sí en una retícula de 15 hasta 80 mm mediante unión en forma de puntos y ensanchadas mediante presión interna, cuya cavidad interna, formada de éste modo, es recorrida por el agente caloportador.

Patent Agency Ranking