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    Process for Ion Exchange on Zeolites
    11.
    发明申请
    Process for Ion Exchange on Zeolites 有权
    沸石离子交换方法

    公开(公告)号：US20130129613A1

    公开(公告)日：2013-05-23

    申请号：US13679054

    申请日：2012-11-16

    Applicant: BASF SE

    Inventor： Hermann Luyken ,  William Todd Owens

    IPC: C01B39/02

    CPC classification number: C01B39/026 ,  B01J29/061 ,  B01J29/087 ,  B01J29/088 ,  B01J29/185 ,  B01J29/405 ,  B01J29/505 ,  B01J29/605 ,  B01J29/7053 ,  B01J29/7065 ,  B01J37/0009 ,  B01J37/0036 ,  B01J37/06 ,  B01J2229/186 ,  B01J2229/38 ,  B01J2229/42 ,  C10G11/05

    Abstract: Aspects of the present invention relate to an improved process for exchanging sodium ions in zeolites comprising sodium ions and rare earth metal ions for ammonium ions. For this exchange, aqueous solutions of ammonium salts, for example ammonium sulfate, ammonium nitrate or ammonium chloride, are currently being used. The resulting “ammonium zeolites” are calcined to convert them, with release of ammonia, to the H form of the zeolites suitable as a catalyst. The use of ammonium carbonate also minimizes the amount of rare earth metal ions which are leached out of the zeolites comprising rare earth metal ions.

    Abstract translation: 本发明的方面涉及一种用于在包含钠离子和用于铵离子的稀土金属离子的沸石中交换钠离子的改进方法。 对于这种交换，目前正在使用铵盐的水溶液，例如硫酸铵，硝酸铵或氯化铵。 将所得的“铵沸石”煅烧以将其转化为氨释放到适合作为催化剂的沸石的H形式。 使用碳酸铵还使从稀土金属离子的沸石中浸出的稀土金属离子的量最小化。

    Method for the production of ethyleneamines
    12.
    发明授权
    Method for the production of ethyleneamines 有权

    公开(公告)号：US11492324B2

    公开(公告)日：2022-11-08

    申请号：US16759428

    申请日：2018-10-17

    Applicant: BASF SE

    Inventor： Hermann Luyken

    IPC: C07C209/84

    Abstract: The present invention relates to a process for purifying ethylenediamine, in which a) a mixture comprising water (H2O), ethylenediamine (EDA) and N-methylethylenediamine (NMEDA) is introduced into a rectification column (NMEDA removal column), where the mixture introduced comprises at least the amount of water as required for the formation of a high-boiling azeotrope of EDA and water at the appropriate bottom temperature; and the EDA-comprising bottom product from the NMEDA removal column is introduced into a second rectification column (EDA dewatering column), wherein the pressure at the top of the EDA dewatering column is adjusted such that the boiling temperature of the mixture obtained at the top is 10° C. or higher than the bottom temperature of the NMEDA removal column, which comprises (i) partly or fully condensing the vapors from the top of the EDA dewatering column in a condenser which is cooled with a medium which is at least partly evaporated during the condensation and the vapor thus formed is used at least partly to heat the evaporator of the NMEDA removal column; and/or (ii) introducing the vapors from the top of the EDA dewatering column into the NMEDA removal column.

    Separation of n-methylethylenediamine from EDA-containing mixtures
    13.
    发明授权
    Separation of n-methylethylenediamine from EDA-containing mixtures 有权

    公开(公告)号：US11225455B2

    公开(公告)日：2022-01-18

    申请号：US16759346

    申请日：2018-10-17

    Applicant: BASF SE

    Inventor： Hermann Luyken

    IPC: C07C209/86

    Abstract: The present invention relates to a process for removing NMEDA from a mixture comprising water (H2O), ethylenediamine (EDA) and N-methylethylenediamine (NMEDA) by a rectification in a rectification column (NMEDA removal), wherein the rectification is conducted at a bottom temperature TB of 155° C. or less and the mixture comprises at least the amount of water as required for the formation of a high-boiling azeotrope of EDA and water at the corresponding bottom temperature.

    Process for Ion Exchange on Zeolites
    16.
    发明申请
    Process for Ion Exchange on Zeolites 审中-公开
    沸石离子交换方法

    公开(公告)号：US20130129612A1

    公开(公告)日：2013-05-23

    申请号：US13677868

    申请日：2012-11-15

    Applicant: BASF SE

    Inventor： Hermann Luyken ,  Manuela Gaab ,  Rolf-Hartmuth Fischer

    IPC: C01B39/50

    CPC classification number: C01B39/50 ,  B01J29/082 ,  B01J29/084 ,  B01J29/18 ,  B01J29/40 ,  B01J29/50 ,  B01J29/60 ,  B01J29/7003 ,  B01J29/7015 ,  B01J2229/186 ,  C01B39/026

    Abstract: Aspects of the present invention relate to an improved process for exchanging alkali metal or alkaline earth metal ions in zeolites for ammonium ions. For this exchange, aqueous solutions of ammonium salts, for example ammonium sulfate, ammonium nitrate or ammonium chloride, are currently being used. The resulting “ammonium zeolites” are calcined to convert them, with release of ammonia, to the H form of the zeolites suitable as a catalyst. Certain methods provided herein use ammonium carbonate instead of the ammonium compounds mentioned. As excess ammonium carbonate, in contrast to the nitrates, sulfates or chlorides, can be recycled in the form of carbon dioxide and ammonia, the amount of salt which has to be discharged is lowered significantly.

    Abstract translation: 本发明的方面涉及用于在铵离子的沸石中交换碱金属或碱土金属离子的改进方法。 对于这种交换，目前正在使用铵盐的水溶液，例如硫酸铵，硝酸铵或氯化铵。 将所得的“铵沸石”煅烧以将其转化为氨释放到适合作为催化剂的沸石的H形式。 本文提供的某些方法使用碳酸铵代替所提及的铵化合物。 作为过量的碳酸铵，与硝酸盐相比，硫酸盐或氯化物可以以二氧化碳和氨的形式再循环，必须排出的盐的量显着降低。

    Method for the production of ethyleneamines
    17.
    发明授权
    Method for the production of ethyleneamines 有权

    公开(公告)号：US11339117B2

    公开(公告)日：2022-05-24

    申请号：US16759347

    申请日：2018-10-17

    Applicant: BASF SE

    Inventor： Hermann Luyken

    IPC: C07C209/84

    Abstract: The present invention relates to a process for purifying a mixture comprising MEG, MEA, EDA and DETA, and low boilers having a boiling point not higher than PIP and high boilers having a boiling point not lower than AEEA, wherein the process comprises the following steps: a) separating a mixture comprising MEG, MEA, EDA and DETA, and low boilers having a boiling point not higher than PIP and high boilers having a boiling point not lower than AEEA, into (i) a mixture A comprising EDA and the low boilers having a boiling point not higher than PIP; and (ii) a mixture B comprising MEA; and (iii) a mixture C comprising MEG, DETA and the high boilers having a boiling point not lower than AEEA; b) separating mixture C from stage a) into (i) a mixture D comprising MEG; and (ii) a mixture E comprising MEG, DETA and the high boilers having a boiling point not lower than AEEA; c) separating mixture E from stage b) either into (i) a mixture F comprising MEG and DETA; and (ii) a mixture G comprising the high boilers having a boiling point not lower than AEEA; or into (i) a mixture F comprising MEG and DETA; and (ii) a mixture G1 comprising AEEA; and (iii) a mixture G2 comprising the high boilers having a boiling point higher than AEEA; d) separating mixture F from stage c) by extractive distillation with triethylene glycol into (i) a mixture H comprising MEG; and (ii) a mixture I comprising DETA and TEG.

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