METHOD FOR THE PRODUCTION OF 1,6-HEXANEDIOL
    1.
    发明申请
    METHOD FOR THE PRODUCTION OF 1,6-HEXANEDIOL 审中-公开
    制备1,6-己二醇的方法

    公开(公告)号:WO2004026798A3

    公开(公告)日:2004-05-27

    申请号:PCT/EP0310288

    申请日:2003-09-16

    CPC classification number: C07C29/149 C07C31/20

    Abstract: The invention relates to a method for producing 1,6-hexanediol and, optionally, e-caprolactone. According to the inventive method, the carboxylic acid obtained by oxidizing cyclohexane is esterified, the esterified mixture is separated into an ester fraction and a bottom fraction, and the ester fraction is hydrated so as to obtain 1,6-hexanediol. The bottom fraction is hydrolyzed with water and is returned into the esterified mixture. Hydrolyzing the bottom fraction with water allows the method to be simplified while preventing metal oxides from being emitted and being deposited on parts of the installation, a phenomenon that occurs during reprocessing of the bottom fraction by means of reesterification.

    Abstract translation: 本发明涉及一种制备1,6-己二醇和任选的(己内酯,其中酯化从环己烷羧酸混合物中得到的产物,酯化混合物分离成Esterfraktion和底部馏分和氢化Esterfraktion成1,6-己二醇 。将所述底部馏分水解与水和再循环至酯化反应。与水的塔底馏分的水解,简化了工艺并如通过酯交换在塔底馏分的后处理进行金属氧化物的排放和金属氧化物的所述植物的部分的沉积,避免 ,

    METHOD FOR DRYING AND PRODUCING MICROPOROUS PARTICLES AND A DRYING DEVICE
    2.
    发明申请
    METHOD FOR DRYING AND PRODUCING MICROPOROUS PARTICLES AND A DRYING DEVICE 审中-公开
    工艺干燥和制备微孔颗粒和干燥设备

    公开(公告)号:WO9946203A3

    公开(公告)日:2000-04-06

    申请号:PCT/EP9901591

    申请日:1999-03-11

    CPC classification number: F26B7/00

    Abstract: The invention relates to a method for drying microporous particles containing fluid in which the heat required for increasing the temperature is supplied by means of convection by reducing the interfacial tension of the fluid, preferably to 0 to 1/10, especially to 0 to 1/20, pertaining to the interfacial tension of the fluid at room temperature, by correspondingly increasing the temperature when the pressure of the fluid is at a near-critical to supercritical level. The invention also relates to a method for producing microporous, spatially cross-linked particles in which said drying method is applied. In addition, the invention relates to a device for carrying out the drying method. The device comprises a pressure vessel having an inner vessel and a pressure-carrying outer vessel. Said device also comprises suited measuring and regulating devices as well as pumping and heat exchange devices, whereby the inner vessel is provided for accommodating the particles which are to be dried. A gap is provided between the inner and outer vessels.

    Abstract translation: 在用于干燥的微孔的方法,通过在室温下降低流体的界面张力,优选为0至1/10,特别是0至1/20,本粒子含有流体的,所述流体在界面张力由温度近 bisüberkritischem根据对流提供给用于温度上升所需要的热量增加的流体的压力。 此外,本发明涉及一种在其中采用这种干燥过程微孔,三维网络颗粒的制备。 此外,本发明包括用于进行所述干燥处理的装置,该装置包括一压力容器与内部容器和drucktragendem外容器和合适的测量和控制装置和泵和热交换装置,其中,所述内部容器被设置用于保持所述颗粒被干燥,并且内之间 - 外容器和一个间隙设置。

    PROCEDIMIENTO Y DISPOSITIVO PARA LA ELABORACION POR DESTILACION DE 1,6-HEXANODIOL, 1,5-PENTANODIOL Y CAPROLACTONA.

    公开(公告)号:ES2261635T3

    公开(公告)日:2006-11-16

    申请号:ES02708262

    申请日:2002-01-08

    Applicant: BASF AG

    Abstract: Procedimiento para la elaboración por destilación de productos crudos obtenidos en el procedimiento según la DE-A 196 07 954, que contienen 1, 6- hexanodiol (HDO), 1, 5-pentanodiol (PDO), o bien caprolactona (CLO), para la obtención de los correspondientes productos puros, caracterizado porque la elaboración por destilación se lleva a cabo respectivamente en una columna de pared separadora (TK), en la que está dispuesta una pared separadora (T) en el sentido longitudinal de la columna bajo formación de una zona de columna superior común (1), una zona de columna inferior común (6), una parte de alimentación (2, 4) con parte de enriquecimiento (2), y parte de descarga (4), así como una parte de extracción (3, 5) con parte de descarga (3) y parte de enriquecimiento (5), con alimentación del respectivo producto crudo HDO, PLO, o bien CLO en la zona media de la parte de alimentación (2, 4), descarga de una fracción de punto de ebullición elevado (C) a partir de la cola de la columna, una fracción de bajo punto de ebullición (A) por encima de la cabeza de la columna y una fracción de punto de ebullición medio (B) de la zona media de la parte de extracción (3, 5), o en columnas acopladas térmicamente.

    7.
    发明专利
    未知

    公开(公告)号:ES2198914T3

    公开(公告)日:2004-02-01

    申请号:ES99924922

    申请日:1999-05-10

    Applicant: BASF AG

    Abstract: A process for preparing 1,6-hexanediol from a carboxylic acid mixture obtained as by-product in the oxidation of cyclohexane to cyclohexanone/cyclohexanol with oxygen or oxygen-comprising gases and by aqueous extraction of the reaction mixture and comprising adipic acid, 6-hydroxycaproic acid and small amounts of 1,4-cyclohexanediols by esterification of the acids and hydrogenation, bya) reacting the mono- and dicarboxylic acids in the aqueous dicarboxylic acid mixture with a low molecular weight alcohol to form the corresponding carboxylic esters,b) conducting a first distillation to remove excess alcohol and low boilers from the esterification mixture obtained,c) conducting a second distillation to separate the bottom product into an ester fraction which is essentially free from 1,4-cyclohexanediols and a fraction which includes at least the larger proportion of the 1,4-cyclohexanediols,d) subjecting the ester fraction essentially free from 1,4-cyclohexanediols to a catalytic hydrogenation, ande) subjecting the hydrogenation effluent to a distillation to recover 1,6-hexanediol in a conventional manner,comprises using an aqueous dicarboxylic acid mixture comprising more than 20 ppm of cobalt and more than 40 ppm of phosphorus in the form of phosphate and passing this aqueous dicarboxylic acid mixture through a cation exchanger and after the esterification of step (a) through an anion exchanger.

    8.
    发明专利
    未知

    公开(公告)号:AT241413T

    公开(公告)日:2003-06-15

    申请号:AT99913251

    申请日:1999-03-11

    Applicant: BASF AG

    Abstract: In a process for drying microporous, fluid-containing particles, the fluid-containing particles to be dried are fed as a moving bed countercurrently to a drying fluid, the interfacial tension of the fluid being reduced in comparison with the interfacial tension of the fluid at room temperature, at near-critical to supercritical pressure of the fluid, preferably to a value in the range from 0 to 1/10, in particular from 0 to 1/20, of the interfacial tension at room temperature. Furthermore, microporous, three-dimensionally networked particles are prepared by a process comprising preparation of microporous particles containing pore liquid, exchange of the pore liquid in the particles for a fluid and drying of the fluid-containing particles, the exchange and drying being carried out in the moving bed by the countercurrent method.

    9.
    发明专利
    未知

    公开(公告)号:DE10100552A1

    公开(公告)日:2002-07-11

    申请号:DE10100552

    申请日:2001-01-09

    Applicant: BASF AG

    Abstract: The invention relates to a method for the distillative processing of the crude products 1,6-hexandiols (HDO), 1,5-pentandiol (PDO) or caprolactone (CLO) obtained according to the method of German patent application DE-A 196 07 954 in order to obtain the corresponding pure products. The distillative processing proceeds in a separation column (TK) in which a separating wall (T) is arranged in the column longitudinal direction forming an upper common column section (1), a lower common column section (6), a feed part (2, 4) with reinforcement part (2) and drive part (4), and a removal part (3, 5) with output part (3) and reinforcement part (5). The corresponding crude product HDO, PDO or CLO is fed in the center section of the feed part (2, 4), the high-boiling fraction (C) is removed from the column sump, the low-boiling fraction (A) is removed via the column head and the medium-boiling fraction (B) is removed from the center section of the removal part (3, 5). The inventive method can also be carried out in thermally coupled columns.

    10.
    发明专利
    未知

    公开(公告)号:DE50206307D1

    公开(公告)日:2006-05-18

    申请号:DE50206307

    申请日:2002-01-08

    Applicant: BASF AG

    Abstract: A process for working up by distillation the crude products obtained in the process according to DE-A 196 07 954 and containing 1,6-hexanediol (HDO), 1,5-pentanediol (PDO) or caprolactone (CLO) in order to obtain the corresponding pure products, the working-up by distillation being carried out in each case in a dividing wall column (TK) in which a dividing wall (T) is arranged in the longitudinal direction of the column with formation of an upper common column region ( 1 ), a lower common column region ( 6 ), a feed section ( 2, 4 ) having a rectification section ( 2 ) and stripping section ( 4 ), and a take-off section ( 3, 5 ) having a stripping section ( 3 ) and rectification section ( 5 ), with feeding of the respective crude product HDO, PLO or CLO in the middle region of the feed section ( 2, 4 ) and removal of the high boiler fraction (C) from the bottom of the column, of the low boiler fraction (A) via the top of the column and of the medium boiler fraction (B) from the middle region of the take-off section ( 3, 5 ), or in thermally coupled columns.

Patent Agency Ranking