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    Method for continuously distilling and removing piperazine from mixture of ethylenediamine and piperazine
    3.
    发明专利
    Method for continuously distilling and removing piperazine from mixture of ethylenediamine and piperazine 有权
    从乙烯胺和哌嗪的混合物中连续蒸馏和去除哌嗪的方法

    公开(公告)号：JP2007051142A

    公开(公告)日：2007-03-01

    申请号：JP2006216786

    申请日：2006-08-09

    Applicant: Basf Ag ,  ビーエーエスエフ アクチェンゲゼルシャフトBASF Aktiengesellschaft

    Inventor： JOEDECKE MICHAEL ,  LANG ORTMUND ,  CAUWENBERGE GUNTHER VAN ,  FRAUENKRON MATTHIAS

    IPC: C07D295/02 ,  C07C209/86 ,  C07C211/10

    CPC classification number: C07D295/00

    Abstract: PROBLEM TO BE SOLVED: To improve qualities of piperazine, especially its color and color stability in a method for continuously distilling and removing piperazine from a mixture of ethylenediamine and piperazine by distilling the mixture under high-pressure at elevated temperature, discharging ethylenediamine from the top of a distillation column and piperazine from the bottom of the distillation column. SOLUTION: The method for continuously distilling and removing piperazine from a mixture of ethylenediamine and piperazine comprises a process of direct circulation treatment in which piperazine discharged from the bottom of the distillation column is transported through an evaporation apparatus operated at about 160-about 170°C and returned to the distillation apparatus and a process in which piperazine is retained in a system for the circulation treatment for 30-about 60 minutes and then discharged in a state of vapor from a side discharge port at the bottom of the distillation column. COPYRIGHT: (C)2007,JPO&INPIT

    Abstract translation: 要解决的问题：为了提高哌嗪的质量，特别是在高温下通过在高温下蒸馏混合物从乙二胺和哌嗪的混合物中连续蒸馏除去哌嗪的方法中的颜色和颜色稳定性，将乙二胺 从蒸馏塔的顶部和来自蒸馏塔底部的哌嗪。 解决方案：从乙二胺和哌嗪的混合物中连续蒸馏除去哌嗪的方法包括直接循环处理的方法，其中从蒸馏塔底部排出的哌嗪通过在约160-约 170℃，返回到蒸馏装置中，并且在循环处理体系中保留哌嗪30〜约60分钟，然后以蒸气状态从蒸馏塔底部的侧排出口排出的方法 。 版权所有（C）2007，JPO＆INPIT

    METHOD FOR PURIFYING TRIETHYLENEDIAMINE
    4.
    发明专利
    METHOD FOR PURIFYING TRIETHYLENEDIAMINE 审中-公开

    公开(公告)号：JP2002363181A

    公开(公告)日：2002-12-18

    申请号：JP2002136221

    申请日：2002-05-10

    Applicant: BASF AG

    Inventor： LANG ORTMUND ,  RUMPF BERND ,  FRAUENKRON MATTHIAS ,  FUNHOFF DIRK ,  MANDERBACH THOMAS ,  STEIN BERND

    IPC: C07D487/04 ,  C07D487/08

    Abstract: PROBLEM TO BE SOLVED: To provide a method for purifying triethylenediamine(TEDA) by evaporating TEDA, transferring the gas state TEDA into a liquid solvent and then continuously crystallizing from the solvent, enabling the re-circulation of at least a part of the used solvent into the purification method and also increasing the yield of the TEDA. SOLUTION: This method for purifying the TEDA is provided by extraction- treating a mother liquor obtained after the crystallization of the TEDA by using an extraction agent which is incompatible or slightly compatible with the solvent of the mother liquor and in which the TEDA is easily dissolvable, and returning the mother liquor poor in the TEDA obtained after the extraction and/or the extraction agent rich in the TEDA and used for the extraction to the purification method.

    METHOD OF PRODUCTION FOR TRIETHYLENE DIAMINE
    5.
    发明专利
    METHOD OF PRODUCTION FOR TRIETHYLENE DIAMINE 审中-公开

    公开(公告)号：JP2002284784A

    公开(公告)日：2002-10-03

    申请号：JP2001378736

    申请日：2001-12-12

    Applicant: BASF AG

    Inventor： FRAUENKRON MATTHIAS ,  STEIN BERND

    IPC: C07B61/00 ,  C07D487/08

    Abstract: PROBLEM TO BE SOLVED: To provide a method of production for triethylene diamine by reacting ethylene diamine in the presence of a zeolite catalyst manifesting high yield, selectivity and catalyst service life and low in formation of piperazine which is unavoidable and giving high purity and color stability and quality of odor of the product. SOLUTION: This zeolite catalyst includes a metal M having one or more oxidized state such as II, III or IV as a metal oxide, and in the case of M=Al the molar ratio of SiO2 /M2 O3 >=1400/1 and in the case of M is a metal manifesting the II oxidized state or M are two or more metals manifesting the II oxidized state, the molar ratio of SiO2 /MO>=100/1 and in the case of M is a metal manifesting the III oxidized state or M are two or more metals manifesting the III oxidized state the molar ratio of SiO2 /M2 O3 >=100/1 and in the case of M is a metal manifesting the IV oxidized state or M are two or more metals manifesting the IV oxidized state the molar ratio of SiO2 / MO2 >=10/1 and the reaction temperature is 250-500 deg.C.

    METHOD FOR PRODUCING PURE TRIETHYLENEDIAMINE SOLUTION
    6.
    发明专利
    METHOD FOR PRODUCING PURE TRIETHYLENEDIAMINE SOLUTION 审中-公开

    公开(公告)号：JP2002241380A

    公开(公告)日：2002-08-28

    申请号：JP2002000691

    申请日：2002-01-07

    Applicant: BASF AG

    Inventor： LANG ORTMUND ,  RUMPF BERND ,  FRAUENKRON MATTHIAS ,  FUNHOFF DIRK ,  MANDERBACH THOMAS ,  STEIN BERND

    IPC: C07D487/08

    Abstract: PROBLEM TO BE SOLVED: To provide an efficient and economical method for production by which pure tetraethylenediamine(TEDA) and its solution are improved in order to obtain the TEDA and TEDA solution of improved quality in relation to color, color stability, odor and purity. SOLUTION: This method for producing the solution of the triethylenediamine(TEDA) comprises evaporating the TEDA from a mixture containing a solvent or a diluent wherein the solvent or diluent has 170-250 deg.C boiling point under atmospheric pressure (=1.01325 bars) and passing the TEDA in the form of vapor through a liquid solvent.

    METHOD FOR SEPARATING TRIETHANOLAMIN FROM A MIXTURE OBTAINABLE BY AMMONIA AND ETHYLENE OXIDE REACTION
    8.
    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

    Applicant: BASF AG ,  REIF WOLFGANG ,  HAMMER HANS ,  RUIDER GUENTHER ,  MEIER ANTON ,  BUSKENS PHILIPP ,  FRAUENKRON MATTHIAS

    Inventor： REIF WOLFGANG ,  HAMMER HANS ,  RUIDER GUENTHER ,  MEIER ANTON ,  BUSKENS PHILIPP ,  FRAUENKRON MATTHIAS

    IPC: C07C213/10 ,  C07C215/12

    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。

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