METHOD AND APPARATUS FOR PRODUCING PURIFIED METHYL ISOBUTYL KETONE
    71.
    发明申请
    METHOD AND APPARATUS FOR PRODUCING PURIFIED METHYL ISOBUTYL KETONE 审中-公开
    生产纯化甲基异丁基酮的方法和装置

    公开(公告)号:WO2007069109A3

    公开(公告)日:2007-10-11

    申请号:PCT/IB2006054454

    申请日:2006-11-27

    IPC分类号: C07C45/82 B01J8/00 C07C49/04

    摘要: This invention relates to a method of producing purified methyl isobutyl ketone (MIBK) comprising subjecting a feed stream containing MIBK and impurities to a first distillation procedure from which acetone is recovered. The bottom product of the first distillation procedure is fed to a liquid-liquid separator and an organic phase from the said liquid-liquid separator is fed to the top region of a second distillation column to produce an overhead product. The said overhead product is condensed and fed to the said liquid-liquid separator. A bottom product containing MIBK is withdrawn from the second distillation column. This bottom product is fed to a third distillation column, high boiling impurities are withdrawn as a bottom product, and purified MIBK is also withdrawn. The invention also relates to an apparatus used in such a method.

    摘要翻译: 本发明涉及一种生产纯化的甲基异丁基酮(MIBK)的方法,包括使含有MIBK和杂质的进料流经历回收丙酮的第一蒸馏步骤。 将第一蒸馏程序的底部产物进料至液 - 液分离器,并将来自所述液 - 液分离器的有机相进料至第二蒸馏塔的顶部区域以产生塔顶产物。 所述塔顶产物被冷凝并进料至所述液 - 液分离器。 含有MIBK的底部产物从第二蒸馏塔排出。 将该底部产物进料至第三蒸馏塔,将高沸点杂质作为底部产物取出,还提取纯化的MIBK。 本发明还涉及在这种方法中使用的装置。

    VERFAHREN ZUM DESTILLATIVEN ABTRENNEN VON FORMALDEHYD AUS POLYOLHALTIGEN REAKTIONSGEMISCHEN UNTER ZUSATZ VON LÖSUNGSMITTELN
    73.
    发明申请
    VERFAHREN ZUM DESTILLATIVEN ABTRENNEN VON FORMALDEHYD AUS POLYOLHALTIGEN REAKTIONSGEMISCHEN UNTER ZUSATZ VON LÖSUNGSMITTELN 审中-公开
    一种从多元醇反应混合物中添加溶剂下甲醛在蒸馏分离

    公开(公告)号:WO2004022516A1

    公开(公告)日:2004-03-18

    申请号:PCT/EP2003/008402

    申请日:2003-07-30

    IPC分类号: C07C45/82

    CPC分类号: C07C45/82 C07C45/83 C07C47/19

    摘要: Verfahren zum destillativen Abtrennen von Formaldehyd aus Reaktionslösungen enthaltend ein methyloliertes Alkanal, das aus der Umsetzung von Formaldehyd mit einem Alkanal, das wenigstens ein acides Wasserstoffatom in a-Stellung zur Carbonylfunktion aufweist, oder aus der Umsetzung eines 2-Alkylacroleins oder Acrolein mit Wasser und Formaldehyd erhalten wird und diese Umsetzung in Gegenwart katalytischer Mengen eines organischen Amins durchgeführt wird, wobei die am Kopf einer destillativen Trenneinrichtung erhaltenen, leicht siedenden Verbindungen kondensiert und der in Wasser nicht lösliche Anteil des Kondensats abgetrennt wird.

    摘要翻译: 用于从反应溶液甲醛的蒸馏分离包括从甲醛的反应羟甲基化链烷醛与链烷醛,其具有在一个位与羰基官能团或从2 Alkylacroleins的反应或与水和甲醛丙烯醛至少一个酸性氢原子的方法, 被获得,并且该反应在催化量的有机胺的存在下,其中在蒸馏分离的顶部获得的化合物是指,低沸点冷凝和不溶于缩合物的水含量被分离进行。

    METHOD FOR THE CONTINUOUS PRODUCTION OF GLUTARALDEHYDE
    74.
    发明申请
    METHOD FOR THE CONTINUOUS PRODUCTION OF GLUTARALDEHYDE 审中-公开
    过程戊二醛连续生产

    公开(公告)号:WO0116237A2

    公开(公告)日:2001-03-08

    申请号:PCT/EP0008412

    申请日:2000-08-29

    摘要: The invention relates to a method for the continuous production of glutaraldehyde by reacting an alkoxydihydropyrane of general formula (I), wherein R represents C1-C20 alkyl, with water at a temperature in the range of from 0 DEG C to 2000 DEG C and a pressure in the range of from 0.01 bar to 16 bar, and obtaining glutaraldehyde and the alcohol that corresponds to the alkoxy group. Water and alkoxyhydropyrane are continuously fed to a reaction column and at the top of the column a distillate enriched with the alcohol that corresponds to the alkoxy group and at the foot thereof a product enriched with glutaraldehyde is removed. The inventive method provides a simple means for producing glutaraldehyde or C-substituted glutaraldehydes continuously and with an improved purity which requires a minimum of equipment.

    摘要翻译: 本发明涉及一种用于连续制备戊二醛的由式(I)的烷氧基​​二氢吡喃的反应,其中,R在从0℃至200℃,和压力的温度代表C1-C20烷基,与水的过程 在0.01巴至16巴的范围内,以形成戊二醛和相应的醇的烷氧基,其中的水和Alkoxyhydropyran连续供入反应塔和在塔的顶部,以使烷氧基对应的醇富集的馏出物和在底部的戊二醛 富氧产品被除去。 利用本发明的方法,有可能以简单的方式来制造戊二醛或C-取代戊二醛kontinierlich具有增加的纯度,需要的设备是低的。

    METHOD FOR SEPARATING A LIQUID CRUDE ALDEHYDE MIXTURE BY DISTILLATION
    75.
    发明申请
    METHOD FOR SEPARATING A LIQUID CRUDE ALDEHYDE MIXTURE BY DISTILLATION 审中-公开
    METHOD FOR分离液体醛粗混合物

    公开(公告)号:WO00058255A1

    公开(公告)日:2000-10-05

    申请号:PCT/EP2000/002721

    申请日:2000-03-28

    IPC分类号: C07C45/50 C07C45/82 C07C47/02

    摘要: The present invention relates to a method for separating a liquid crude aldehyde mixture by distillation. Said mixture contains unbranched and branched aldehydes. In a first distillation column, the product mixture is separated into a first product flow of branched aldehyde, a product flow of unbranched aldehyde and an additional product flow which contains unbranched aldehyde and the high-boiling components. In a second distillation column whose product flow is smaller by a factor of 50 to 200 than the product flow from the first distillation column, the additional product flow is then separated into a product flow of unbranched aldehyde and a high-boiling product flow.

    摘要翻译: 本发明涉及含有直的液体粗醛混合物的蒸馏分离的方法和支链醛,其中所述产品混合物是在支链醛,直链醛和另一产品流的产品流,直链醛的产物流的第一蒸馏塔中,和 含有高沸点组分分离。 然后,将其它产品流被分离成直链醛的产物物流,并在第二蒸馏塔中,其填充体积是通过一个因子50至200比第一蒸馏塔的小的高沸点产物物流。

    METHOD FOR DISTILLING MIXTURES CONTAINING BUTANEDIOL
    76.
    发明申请
    METHOD FOR DISTILLING MIXTURES CONTAINING BUTANEDIOL 审中-公开
    程序进行蒸馏BUTANDIOLHALTIGER混合工

    公开(公告)号:WO99044975A1

    公开(公告)日:1999-09-10

    申请号:PCT/EP1999/001250

    申请日:1999-02-26

    摘要: The invention relates to a method for separating a mixture containing butane-1,4-diol and at least one other compound from the following group: 4-hydroxybutyraldehyde, its cyclical hemiacetal and its cyclical whole acetals with at least one other alcohol, by distillation. The distillation is carried out in the presence of a compound which acts as an alkali. The mixture to be separated preferably contains a cyclical whole acetal of 4-hydroxybutyraldehyde with the other alcohol, this alcohol having a lower boiling temperature than butanediol and being in free form. The method is especially suitable for distilling and separating mixtures produced in the hydrogenation of maleic acid derivatives.

    摘要翻译: 本发明是一种用于含有选自4-羟基丁醛的基团,它的环状半缩醛及其环状充分缩醛与至少一种其它的醇,选定的丁烷-1,4-二醇和至少一种其它化合物的混合物的其中在蒸馏分离的方法 碱性化合物的存在下进行蒸馏。 优选地,待分离的混合物包含4-羟基丁醛的与另外的醇的环状全缩醛,所述具有低沸点温度比丁烷二醇,和游离形式的其它醇的醇。 该方法特别适用于通过在马来酸衍生物的氢化获得的蒸馏混合物中分离。

    IMPROVEMENTS IN OR RELATING TO FRIEDEL-CRAFTS REACTIONS
    77.
    发明申请
    IMPROVEMENTS IN OR RELATING TO FRIEDEL-CRAFTS REACTIONS 审中-公开
    改进或相关于FRIEDEL-CRAFTS反应

    公开(公告)号:WO99019288A1

    公开(公告)日:1999-04-22

    申请号:PCT/GB1998/003042

    申请日:1998-10-12

    CPC分类号: C07C45/82 C07C45/46 C07C49/78

    摘要: A Friedel-Crafts acylation reaction is carried out in the presence of an ionic liquid system as catalyst. The ionic liquid system preferably also functions as a reaction solvent.

    摘要翻译: Friedel-Crafts酰化反应在作为催化剂的离子液体体系存在下进行。 离子液体体系优选也用作反应溶剂。