PROCESS FOR PRODUCING ESTERIFICATED CONDENSATE
    94.
    发明公开
    PROCESS FOR PRODUCING ESTERIFICATED CONDENSATE 有权
    VERFAHREN ZUR HERSTELLUNG VERESTERTER KONDENSATE

    公开(公告)号:EP1334960A1

    公开(公告)日:2003-08-13

    申请号:EP01958409.3

    申请日:2001-08-23

    摘要: The present invention provides a method for preparing ester or thioester that can conduct catalytic esterification reaction with an equimolar amount of carboxylic acid and alcohol, or catalytic thioesterification reaction with carboxylic acid and an equimolar amount or small amount of thiol, and can be expected as an industrial method that needs an enormous amount of synthesis in the light of green chemistry. By using hafnium chloride (IV), especially tetravalent hafnium compounds represented by hafnium chloride (IV) · (THF) 2 or hafnium (IV)t-butoxide as a (poly) condensation catalyst, direct condensation reaction is conducted from carboxylic acid and an equimolar amount of alcohol or a little smaller amount of thiol , in the nonpolar solvent such as toluene and the like, in a deoxidization atmosphere and under heating reflux, and the reaction synthesizes ester monomer or thioester monomer, polyester or polythioester. When heating reflux is conducted by using a nonpolar solvent, it is preferable to remove azeotropic water from the reaction system.

    摘要翻译: 本发明提供一种制备可与等摩尔量的羧酸和醇进行催化酯化反应或与羧酸和等摩尔量或少量硫醇进行催化酯基酯化反应的酯或硫酯的方法,并且可以作为 在绿色化学方面需要大量合成的工业方法。 通过使用氯化铪(IV),特别是由氯化铪(IV)表示的四价铪化合物。 (THF)2或作为(多)缩合催化剂的叔丁醇铪(IV),在非极性溶剂如甲苯中,从羧酸和等摩尔量的醇或少量的硫醇进行直接缩合反应, 在脱氧气氛中并在加热回流下反应合成酯单体或硫酯单体,聚酯或聚硫酯。 当使用非极性溶剂进行加热回流时,优选从反应体系中除去共沸水。

    Method for preparing sulfone or sulfoxide compound
    95.
    发明公开
    Method for preparing sulfone or sulfoxide compound 有权
    维尔法赫尔·苏尔·赫斯特伦

    公开(公告)号:EP1334956A2

    公开(公告)日:2003-08-13

    申请号:EP03001126.6

    申请日:2003-01-20

    摘要: There is provided a method for preparing a sulfone or sulfoxide compound, characterized in that a sulfide compound is allowed to react with hydrogen peroxide in the presence of a metal oxide catalyst formed by the reaction of hydrogen peroxide with at least one metal or metal compound selected from tungsten metal; molybdenum metal; a tungsten compound comprising tungsten and a Group IIIb, IVb, Vb, or VIb element exclusive of oxygen; and a molybdenum compound comprising molybdenum and a Group IIIb, IVb, Vb, or VIb element exclusive of oxygen.

    摘要翻译: 提供了一种制备砜或亚砜化合物的方法,其特征在于使硫化物与过氧化氢在金属氧化物催化剂存在下反应,所述金属氧化物催化剂是通过过氧化氢与至少一种金属或金属化合物的反应形成的 来自钨金属; 钼金属; 包含钨和不含氧的IIIb,IVb,Vb或VIb族元素的钨化合物; 以及包含钼和不包括氧的IIIb,IVb,Vb或VIb族元素的钼化合物。

    MULTITUBE FALLING FILM REACTOR FOR THE CONTINUOUS MANUFACTURING OF SULFONATED AND/OR SULFATED COMPOUNDS
    99.
    发明公开
    MULTITUBE FALLING FILM REACTOR FOR THE CONTINUOUS MANUFACTURING OF SULFONATED AND/OR SULFATED COMPOUNDS 失效
    秋拍反应器管的品种用于生产砜或硫酸盐

    公开(公告)号:EP0817674A1

    公开(公告)日:1998-01-14

    申请号:EP96909396.0

    申请日:1996-03-22

    申请人: Dahl, Birger

    发明人: Dahl, Birger

    IPC分类号: B01J10 B01J19 C07B45 C07C303

    摘要: Multitube falling film reactor (MTR) for continuous manufacturing of sulfonated and/or sulfated products using gaseous, diluted sulfur trioxide, (SO3(dil)) to produce surface active agents or simply surfactants, useful in the cosmetic and detergent industry. Each individual nozzle-set comprises a male part (19) and the other half (45) on the male part (10). The male part (10) forms together with the female part (19), an annular slot (21) with a constant and under all operational conditions well defined length (47), which together with a fixed opening/width determines the individual pressure drop of the said slot and thereby the individual organic flow. With this arrangement, completely homogenous distribution of organic feed is achieved without the necessity of calibration.