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    Method for producing ethyleneamines
    2.
    发明授权
    Method for producing ethyleneamines 有权

    公开(公告)号：US11021434B2

    公开(公告)日：2021-06-01

    申请号：US16759348

    申请日：2018-10-17

    Applicant: BASF SE

    Inventor： Hermann Luyken

    IPC: C07C209/16 ,  C07C213/02 ,  C07C211/22 ,  C07C215/08

    Abstract: The present invention relates to a process for preparing ethyleneamines and/or alkanolamines, comprising the following steps: 1) reacting MEG with ammonia in the presence of hydrogen and an amination catalyst; 2) removing hydrogen and ammonia from the reaction output from stage 1, wherein the removal of hydrogen and ammonia in stage 2 comprises the following steps: 2-1) separating the reaction output from stage 1 into a gaseous phase comprising ammonia and hydrogen, and a liquid phase comprising ethyleneamines and/or alkanolamines, 2-2) passing the gaseous phase from stage 2-1) through one or more condensers to obtain one or more liquid phases in which ammonia has been enriched, and a gaseous phase in which hydrogen has been enriched, 2-3) contacting the gaseous phase from stage 2-2) with MEG so as to obtain a liquid phase comprising MEG and ammonia and a gaseous phase comprising hydrogen and optionally ammonia.

    Method for purifying adipodinitrile (ADN)
    3.
    发明授权
    Method for purifying adipodinitrile (ADN) 有权

    公开(公告)号：US09822067B2

    公开(公告)日：2017-11-21

    申请号：US15116541

    申请日：2015-02-03

    Applicant: BASF SE

    Inventor： Hermann Luyken ,  Peter Pfab ,  Tim Jungkamp

    IPC: C07C253/34

    CPC classification number: C07C253/34 ,  C07C209/48 ,  C07C253/10 ,  C07C255/04 ,  C07C211/12

    Abstract: The present invention relates to a process for purifying adiponitrile (ADN), wherein crude ADN is introduced into a rectification apparatus (R1). The rectification apparatus (R1) comprises a first side draw and preferably also a second side draw, the first side draw being disposed below the crude ADN introduction point and the optional second side draw being disposed above the crude ADN introduction point. The first side draw is used to draw off a gaseous stream comprising ADN while the optional second side draw is used to draw off undesired by-products such as 1-amino-2-cyanocyclopentene (ACCP) which are often generated in ADN production and consequently may be present in the crude ADN. The gaseous stream from the first side draw of (R1) is introduced into a second rectification apparatus (R2). (R2) is used to separate off ADN from remaining high boilers and any other by-products present, pure ADN being drawn off from (D2) as overhead product. It is preferable when the process according to the invention employs crude ADN from a reaction of butadiene with hydrocyanic acid (HCN).

    Method for producing ethyleneamines
    4.
    发明授权
    Method for producing ethyleneamines 有权

    公开(公告)号：US11214535B2

    公开(公告)日：2022-01-04

    申请号：US16619987

    申请日：2018-05-24

    Applicant: BASF SE

    Inventor： Regine Helga Bebensee ,  Thomas Heidemann ,  Barbara Becker ,  Eva Koch ,  Hermann Luyken ,  Johann-Peter Melder

    IPC: C07C215/08 ,  B01J23/46 ,  B01J23/75 ,  B01J8/24 ,  B01J8/18 ,  B01J21/02 ,  B01J21/06

    Abstract: The invention relates to processes for preparing alkanolamines and ethyleneamines in the liquid phase, by reacting ethylene glycol and/or monoethanolamine with ammonia in the presence of an amination catalyst comprising one or more active metals selected from Sn and the elements of groups 8, 9, 10 and 11 of the Periodic Table of the Elements, wherein the amination catalyst is obtained by reductive calcination of a catalyst precursor. The catalyst precursor here is preferably prepared by contacting a conventional or catalytic support material with one or more soluble compounds of the active metals and optionally one or more soluble compounds of added catalyst elements. The present invention further relates to a process for preparing an amination catalyst comprising one or more active metals selected from Sn and the elements of groups 8, 9, 10 and 11 of the Periodic Table of the Elements, the amination catalyst being obtained by reductive calcination of a catalyst precursor, wherein the reactor in which the catalyst precursor is reductively calcined is connected to a denox plant, and to the use of a denox plant in the preparation of amination catalysts.

    Method for continuous production of adiponitrile
    8.
    发明授权
    Method for continuous production of adiponitrile 有权

    公开(公告)号：US09890113B2

    公开(公告)日：2018-02-13

    申请号：US15510949

    申请日：2015-09-15

    Applicant: BASF SE

    Inventor： Rolf-Hartmuth Fischer ,  Robert Baumann ,  Veronika Wloka ,  Hermann Luyken

    IPC: C07C253/30

    CPC classification number: C07C253/30 ,  C07C253/10 ,  Y02P20/127 ,  C07C255/04 ,  C07C255/07

    Abstract: A process for the continuous preparation of adiponitrile by hydrocyanation of 3-pentenenitrile is described, wherein a) 3-pentenenitrile is hydrocyanated to give a reaction output comprising adiponitrile, b) in a work-up 1, a mixture comprising cis-2-methyl-2-butenenitrile and cis-2-pentenenitrile is separated off as overhead product from the reaction output from the reactor R1 in a first distillation apparatus, c) the mixture comprising cis-2-methyl-2-butenenitrile and cis-2-pentenenitrile from step b) is continuously isomerized in the presence of aluminum oxide as catalyst in a reactor R2 to give a product mixture comprising 3-pentenenitrile, d) cis-2-methyl-2-butenenitrile is separated off as overhead product from the reaction output from the reactor R2 in a distillation apparatus in a work-up 2 and discharged.

    METHOD FOR PURIFYING ADIPODINITRILE (ADN)
    9.
    发明申请
    METHOD FOR PURIFYING ADIPODINITRILE (ADN) 有权
    净化ADIPODINITRILE（ADN）的方法

    公开(公告)号：US20160376227A1

    公开(公告)日：2016-12-29

    申请号：US15116541

    申请日：2015-02-03

    Applicant: BASF SE

    Inventor： Hermann Luyken ,  Peter PFAB ,  Tim JUNGKAMP

    IPC: C07C253/34

    CPC classification number: C07C253/34 ,  C07C209/48 ,  C07C253/10 ,  C07C255/04 ,  C07C211/12

    Abstract: The present invention relates to a process for purifying adiponitrile (ADN), wherein crude ADN is introduced into a rectification apparatus (R1). The rectification apparatus (R1) comprises a first side draw and preferably also a second side draw, the first side draw being disposed below the crude ADN introduction point and the optional second side draw being disposed above the crude ADN introduction point. The first side draw is used to draw off a gaseous stream comprising ADN while the optional second side draw is used to draw off undesired by-products such as 1-amino-2-cyanocyclopentene (ACCP) which are often generated in ADN production and consequently may be present in the crude ADN. The gaseous stream from the first side draw of (R1) is introduced into a second rectification apparatus (R2). (R2) is used to separate off ADN from remaining high boilers and any other by-products present, pure ADN being drawn off from (D2) as overhead product. It is preferable when the process according to the invention employs crude ADN from a reaction of butadiene with hydrocyanic acid (HCN).

    Abstract translation: 本发明涉及一种纯化己二腈（ADN）的方法，其中将粗ADN引入精馏装置（R1）。 整流装置（R1）包括第一侧拉伸，优选地还包括第二侧拉伸，第一侧拉伸设置在粗ADN引入点的下方，并且可选的第二侧拉伸设置在粗ADN引入点的上方。 第一侧拉伸用于抽出包含ADN的气流，而任选的第二侧拉伸用于除去常常在ADN生产中产生的不希望的副产物，例如1-氨基-2-氰基环戊烯（ACCP），因此 可能存在于粗ADN中。 将来自（R1）的第一侧拉制的气流引入第二整流装置（R2）。 （R2）用于将ADN与剩余的高锅炉和任何其他副产物分离出来，纯的ADN作为塔顶产物从（D2）中排出。 当根据本发明的方法从丁二烯与氢氰酸（HCN）的反应中使用粗ADN时，是优选的。

    Method for producing linear pentenenitrile
    10.
    发明授权
    Method for producing linear pentenenitrile 有权
    线性戊烯腈的制备方法

    公开(公告)号：US09493405B2

    公开(公告)日：2016-11-15

    申请号：US14941167

    申请日：2015-11-13

    Applicant: BASF SE

    Inventor： Tim Jungkamp ,  Robert Baumann ,  Michael Bartsch ,  Gerd Haderlein ,  Hermann Luyken ,  Jens Scheidel ,  Tobias Aechtner ,  Peter Pfab ,  Petra Deckert ,  Wolfgang Siegel ,  Peter Bassler

    IPC: C07C253/30 ,  C07C253/10

    CPC classification number: C07C253/30 ,  C07C253/10 ,  Y02P20/582 ,  C07C255/07

    Abstract: A process is described for preparing 3-pentenenitrile, characterized by the following process steps: (a) isomerizing a reactant stream which comprises 2-methyl-3-butenenitrile over at least one dissolved or dispersed isomerization catalyst to give a stream 1 which comprises the at least one isomerization catalyst, 2-methyl-3-butenenitrile, 3-pentenenitrile and (Z)-2-methyl-2-butenenitrile, (b) distilling stream 1 to obtain a stream 2 as the top product which comprises 2-methyl-3-butenenitrile, 3-pentenenitrile and (Z)-2-methyl-2-butenenitrile, and a stream 3 as the bottom product which comprises the at least one isomerization catalyst, (c) distilling stream 2 to obtain a stream 4 as the top product which, compared to stream 2, is enriched in (Z)-2-methyl-2-butenenitrile, based on the sum of all pentenenitriles in stream 2, and a stream 5 as the bottom product which, compared to stream 2, is enriched in 3-pentenenitrile and 2-methyl-3-butenenitrile, based on the sum of all pentenenitriles in stream 2, (d) distilling stream 5 to obtain a stream 6 as the bottom product which comprises 3-pentenenitrile and a stream 7 as the top product which comprises 2-methyl-3-butenenitrile.

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