METHOD FOR SEPARATING TRIETHANOLAMIN FROM A MIXTURE OBTAINABLE BY AMMONIA AND ETHYLENE OXIDE REACTION
    1.
    发明申请
    METHOD FOR SEPARATING TRIETHANOLAMIN FROM A MIXTURE OBTAINABLE BY AMMONIA AND ETHYLENE OXIDE REACTION 审中-公开
    方法用于分离三乙醇胺从THROUGH氨氧化乙烯燃混合物的实现

    公开(公告)号:WO2005035481A3

    公开(公告)日:2005-06-02

    申请号:PCT/EP2004011022

    申请日:2004-10-02

    CPC classification number: C07C213/10 C07C215/12

    Abstract: The invention relates to a method for distillative separation of triethanolamin from a substance mixture consisting of mono- di-, and triethanolamin, ethanolamin-ether and water obtainable by an ammonia and ethylene oxide reaction in a liquid phase at a high pressure and temperature consisting in distilling the substance mixture in two stages. In the first stage, a low-boiling fraction and a high-boiling fraction are withdrawn and discharged, and in the second stage, a medium-boiling fractions is distilled at a triethanolamin content >99.4 % by weight and a diethanolamin content

    Abstract translation: 一种用于三乙醇胺的从图像在压力下,并在一,二和三乙醇胺的升高的温度下混合,以及乙醇胺醚和水,通过氨与环氧乙烷在液相中反应而获得的连续蒸馏分离工艺,其中在两个阶段中蒸馏该混合物 是。 在第一阶段中的低沸点馏分和高沸点馏分被取出和排出并在第二阶段中,中间沸点馏分蒸馏具有<0.2重量%的> 99.4重量%三乙醇胺的含量和二乙醇胺。 该混合物的蒸馏在第一列中优选进行和相互连接该第二塔或间壁塔。

    3.
    发明专利
    未知

    公开(公告)号:DE59709160D1

    公开(公告)日:2003-02-20

    申请号:DE59709160

    申请日:1997-06-24

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP97/03303 Sec. 371 Date Jan. 7, 1999 Sec. 102(e) Date Jan. 7, 1999 PCT Filed Jun. 24, 1997 PCT Pub. No. WO98/01438 PCT Pub. Date Jan. 15, 1998The disclosure is a process for preparing a phthalide of the general formula I where R1, R2, R3 and R4 are each independently of the others hydrogen, C1-C4-alkyl or C1-C4-alkoxy, by hydrogenation of a phthalic anhydride of the general formula II where R1, R2, R3 and R4 are each as defined above, with the aid of a hydrogenation catalyst, which comprises performing the hydrogenation with the aid of a nickel catalyst doped with metals of subgroup 1, subgroup 6 and/or subgroup 7 of the Periodic Table.

    10.
    发明专利
    未知

    公开(公告)号:AT202566T

    公开(公告)日:2001-07-15

    申请号:AT97909303

    申请日:1997-09-22

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP97/05186 Sec. 371 Date Apr. 1, 1999 Sec. 102(e) Date Apr. 1, 1999 PCT Filed Sep. 22, 1997 PCT Pub. No. WO98/14441 PCT Pub. Date Apr. 9, 1998A process for preparing phthalides of the general formula I, where R1, R2, R3 and R4 are independently hydrogen, C1-C4-alkyl or C1-C4-alkoxy, by hydrogenating phthalic anhydrides of the general formula II, where R1, R2, R3 and R4 are each as defined above, with hydrogen in the presence of suspended catalysts of the Raney type in a hydrogenation apparatus by using a mixing apparatus to mix a liquid phase, which includes the catalyst and the phthalic anhydride used and resulting phthalide, and a gas phase, which includes the hydrogenating hydrogen, comprises using the mixing apparatus to introduce a mixing intensity of at least 50 W/l into the liquid phase.

Patent Agency Ranking