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    PROCESS FOR OBTAINING ISOBUTENE FROM A C4-HYDROCARBON MIXTURE
    42.
    发明公开
    PROCESS FOR OBTAINING ISOBUTENE FROM A C4-HYDROCARBON MIXTURE 审中-公开

    公开(公告)号：EP4056549A1

    公开(公告)日：2022-09-14

    申请号：EP21161219.7

    申请日：2021-03-08

    Applicant: BASF SE

    Inventor： WAGNER, Hans-Guenter ,  THOTLA, Suman ,  HUGO, Randolf ,  WATERS, Gerrit ,  HUEBNER, Michael ,  NEUDERT, Markus ,  ROUSSIERE, Thomas

    IPC: C07C7/148 ,  C07C11/09 ,  C07C7/04 ,  C07C41/06 ,  C07C41/42 ,  C07C43/04

    Abstract: The invention relates to a process for obtaining isobutene from an isobutene containing C4-hydrocarbon mixture (1) in a plant comprising an etherification unit (3), a first distillation unit (5), an ether cleavage unit (8) and a second distillation unit (10), the process comprising:
    (a) contacting the C4-hydrocarbon mixture (1) with a primary alcohol (2) and reacting the mixture with the primary alcohol in the presence of an acidic catalyst to form the corresponding alkyl tert-butyl ether as an intermediate product and diisobutene as a byproduct in the etherification unit (3);
    (b) distilling the reaction mixture (4) from the etherification unit (3) in the first distillation unit (5), a C4-hydrocarbon raffinate being withdrawn as the overhead product (6), the alkyl tert-butyl ether and diisobutene being withdrawn as the liquid or vaporous bottom product (7), and vaporizing the bottom product (7) if it is withdrawn as a liquid;
    (c) reacting the vaporous bottom product (7) in the presence of an acidic catalyst obtaining isobutene and the primary alcohol as reaction products in the ether cleavage unit (8);
    (d) distilling the reaction mixture (9) from the ether cleavage unit (8) in the second distillation unit (10), isobutene being withdrawn as the overhead product (11), the primary alcohol and diisobutene being withdrawn as the bottom product (12) and being recycled to the etherification unit (3);
    the plant further comprising a byproduct separation unit (15) being fed by a bottom purge stream (13) of the first distillation unit (5) and/or by a part of the bottom product of the second distillation unit (10), wherein a diisobutene product stream rich in diisobutene is separated from this feed stream (13, 14).

    VERFAHREN ZUR BEREITSTELLUNG EINER DAMPFFÖRMIGEN GEREINIGTEN ROH-C4-FRAKTION ALS ZUFUHRSTROM FÜR EIN EXTRAKTIONSDESTILLATIONSVERFAHREN MIT EINEM SELEKTIVEN LÖSUNGSMITTEL
    44.
    发明公开
    VERFAHREN ZUR BEREITSTELLUNG EINER DAMPFFÖRMIGEN GEREINIGTEN ROH-C4-FRAKTION ALS ZUFUHRSTROM FÜR EIN EXTRAKTIONSDESTILLATIONSVERFAHREN MIT EINEM SELEKTIVEN LÖSUNGSMITTEL 有权
    一种使用选择性溶剂具体的萃取蒸馏，与蒸汽CLEANED SHAPED ROH-C4馏分作为用电

    公开(公告)号：EP2788457A1

    公开(公告)日：2014-10-15

    申请号：EP12794723.2

    申请日：2012-12-04

    Applicant: BASF SE

    Inventor： HEIDA, Bernd ,  HUGO, Randolf

    IPC: C10G21/28 ,  C10G21/14 ,  C10L3/12 ,  B01D3/14

    CPC classification number: C10L3/12 ,  B01D3/40 ,  C10G21/14 ,  C10G21/28

    Abstract: The invention relates to a method for providing a vaporous purified crude C
    4 fraction as a feed stream for an extractive distillation process using a selective solvent, having the method steps of 1) separating the C
    3 -hydrocarbons, 2) separating the C
    4 -oligomers and -polymers as well as the C
    5+ -hydrocarbons up to the respective residual content specified above for the vaporous purified crude C
    4 fraction, and 3) evaporating the liquid crude C
    4 fraction. The method is characterized in that all the method steps 1), 2), and 3) are carried out in a single distillation column which is fed the liquid crude C
    4 fraction in the upper third of the column thereby forming a rectifying section and a stripping section and from which a head stream containing the C
    3 -hydrocarbons and a bottom stream containing the C
    4 -oligomers and -polymers as well as the C
    5+ -hydrocarbons are drawn, and the vaporous purified crude C
    4 fraction is drawn from the stripping section as a side stream.

    Abstract translation: 本发明涉及一种用于使用选择性溶剂在萃取蒸馏过程中提供的蒸气状纯化粗C4馏分作为进料流为，具有1的方法步骤）分离C3烃，2）分离所述C4-低聚物和 - 聚合物以及将C​​5 + - 烃到上述用于蒸气纯化粗C 4馏分中指定的respectivement残余含量，以及3）蒸发液体粗C4馏分。 该方法是在没有所有的方法步骤1），2）和3）在一个单一的蒸馏塔中进行的所有被馈送在塔的上部三分之一的液体粗C4馏分，从而形成一个精馏段和汽提为特征的 部和从该源头通过含有C 3烃和含有C4低聚物的塔底物流和 - 聚合物以及所述C5 + - 烃被绘制，并且蒸气纯化粗C4馏分从汽提部分作为侧引出 流。

    VERFAHREN ZUR HERSTELLUNG VON AMEISENSÄURE DURCH UMSETZUNG VON KOHLENDIOXID MIT WASSERSTOFF
    46.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON AMEISENSÄURE DURCH UMSETZUNG VON KOHLENDIOXID MIT WASSERSTOFF 审中-公开
    VERFAHREN ZUR HERSTELLUNG VONAMEISENSÄUREDURCH UMSETZUNG VON KOHLENDIOXID MIT WASSERSTOFF

    公开(公告)号：EP2763950A2

    公开(公告)日：2014-08-13

    申请号：EP12766684.0

    申请日：2012-10-02

    Applicant: BASF SE

    Inventor： SCHAUB, Thomas ,  BEY, Oliver ,  MEIER, Anton ,  FRIES, Donata, Maria ,  HUGO, Randolf

    IPC: C07C51/00 ,  C07C51/02 ,  C07C51/42 ,  C07C53/02

    CPC classification number: C07C51/02 ,  B01J31/0202 ,  B01J31/0237 ,  B01J31/24 ,  B01J31/2414 ,  B01J2231/625 ,  B01J2531/821 ,  B01J2531/98 ,  C07C51/41 ,  C07C51/48 ,  C07C53/02 ,  C07C53/06

    Abstract: The invention relates to a method for producing formic acid, comprising the following steps: (a) reacting, in a homogeneously catalyzed manner, a reaction mixture (Rg) containing carbon dioxide, hydrogen, at least one polar solvent selected from the group comprising methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, 2-butanol, 2-methyl-1-propanol, and water, and at least one tertiary amine of general formula (A1) NR
    1 R
    2 R
    3 , in which R
    1 , R
    2 , and R
    3 represent independently of one another an unbranched or branched, acyclic or cyclic, aliphatic, araliphatic, or aromatic group having 1 to 16 carbon atoms, wherein individual carbon atoms can also be substituted independently of one another with a hetero group selected from the groups -O- and >N- and two or all three residues can also be bonded to one another to from a chain comprising at least four atoms, in the presence of at least one coordination catalyst, which contains at least one element selected from groups 8, 9, and 10 of the periodic system, in a hydrogenation reactor in order to obtain, optionally after adding water, a two-phase hydrogenation mixture (H) containing an upper phase (O1), which contains the at least one coordination catalyst and the at least one tertiary amine (A1), and a lower phase (U1), which contains the at least one polar solvent, residues of the at least one coordination catalyst, and at least one formic acid/amine adduct of general formula (A2), NR
    1 R
    2 R
    3 * x
    i HCOOH, in which x
    i is in the range of 0.4 to 5 and R
    1 , R
    2 , R
    3 have the meanings stated above; (b) processing the hydrogenation mixture (H) obtained in step (a) according to one of the following steps: (b1) phase-separating the hydrogenation mixture (H) obtained in step (a) in a first phase-separating device into the upper phase (O1) and the lower phase (U1), or (b2) extracting the at least one coordination catalyst from the hydrogenation mixture (H) obtained in step (a) in an extraction unit with an extracting agent containing the at least one tertiary amine (A1) in order to obtain a raffinate (R1) containing the at least one formic acid/amine adduct (A2) and the at least one polar solvent and an extract (E1) containing the at least one tertiary amine (A1) and the at least one coordination catalyst, or (b3) phase-separating the hydrogenation mixture (H) obtained in step (a) in a first phase-separating device into the upper phase (O1) and the lower phase (U1) and extracting the residues of the at least one coordination catalyst from the lower phase (U1) in an extraction unit by means of an extracting agent containing the at least one tertiary amine (A1) in order to obtain a raffinate (R2) containing the at least one formic acid/amine adduct (A2) and the at least one polar solvent and an extract (E2) containing the at least one tertiary amine (A1) and the residues of the at least one coordination catalyst; (c) separating the at least one polar solvent from the lower phase (U1), from the raffinate (R1), or from the raffinate (R2) in a first distillation device in order to obtain a distillate (D1) containing the at least one polar solvent, which is fed back into the hydrogenation reactor in step (a), and a two-phase bottom mixture (S1) containing an upper phase (O2), which contains the at least one tertiary amine (A1), and a lower phase (U2), which contains the at least one formic acid/amine adduct (A2); (d) optionally processing the bottom mixture (S1) obtained in step (c) by phase separation in a second phase-separating device into the upper phase (O2) and the lower phase (U2); (e) cleaving the at least one formic acid/amine adduct (A2) contained in the bottom mixture (S1) or optionally in the lower phase (U2) in a thermal cleaving unit in order to obtain the at least one tertiary amine (A1), which is fed back to the hydrogenation reactor in step (a), and formic acid, which is discharged from the thermal cleaving unit, wherein carbon monoxide is added to the lower phase (U1), the raffinate (R1), or the raffinate (R2) directly before and/or during step (c) and/or carbon monoxide is added to the bottom mixture (S1) or optionally the bottom phase (U2) directly before and/or during step (e).

    Abstract translation: 本发明涉及一种生产甲酸的方法，其包括以下步骤：（a）以均相催化方式使含有二氧化碳，氢气，至少一种选自甲醇的极性溶剂的反应混合物（Rg） ，乙醇，1-丙醇，2-丙醇，1-丁醇，2-丁醇，2-甲基-1-丙醇和水，以及至少一种通式（A1）NR 1 R 2 R 3的叔胺，其中R 1，R 2和R 3彼此独立地表示具有1至16个碳原子的非支链或支链，无环或环状的脂族，芳脂族或芳族基团，其中各个碳原子也可以彼此独立地被 选自基团-O-和> N-的杂基团和两个或全部三个残基也可以在至少一种配位催化剂存在下彼此连接以形成至少包含四个原子的链，所述配位催化剂至少含有 从第8,9和10组中选择一个元素 在氢化反应器中，以任选地在加入水之后获得含有上层相（O1）的两相加氢混合物（H），所述上层相（O1）含有至少一种配位催化剂和至少一种叔胺 A1）以及含有至少一种极性溶剂，至少一种配位催化剂的残基和通式（A2）的至少一种甲酸/胺加合物的下层相（U1），NR 1 R 2 R 3 * xi HCOOH，其中xi在0.4至5的范围内，且R 1，R 2，R 3具有上述含义; （b）根据以下步骤之一处理步骤（a）中获得的氢化混合物（H）：（b1）将在步骤（a）中获得的氢化混合物（H）在第一相分离装置中相分离成 （a1）中所获得的氢化混合物（H）中的至少一种配位催化剂在萃取单元中与包含至少一种上层相（O1）和下层相（U1） 一种叔胺（A1）以获得含有至少一种甲酸/胺加合物（A2）和至少一种极性溶剂的提余液（R1）和含有至少一种叔胺（A1）的提取物（E1） ）和所述至少一种配位催化剂，或（b3）将在步骤（a）中获得的氢化混合物（H）在第一相分离装置中相分离成上相（O1）和下相（U1）和 在提取单元中从下层相（U1）中提取至少一种配位催化剂的残余物 为了获得含有所述至少一种甲酸/胺加合物（A2）和所述至少一种极性溶剂的提余液（R2）以及提取物（E2），提取含有所述至少一种叔胺（A1） 含有所述至少一种叔胺（A1）和所述至少一种配位催化剂的残基; （c）在第一蒸馏装置中从所述下相（U1），从所述提余液（R1）或从所述提余液（R2）分离所述至少一种极性溶剂，以获得馏出物（D1），所述馏出物（D1）包含至少 将一种极性溶剂（其在步骤（a）中被返回到氢化反应器中）和两相底部混合物（S1），所述两相底部混合物（S1）包含含有至少一种叔胺（A1）的上层相（O2） 包含至少一种甲酸/胺加合物（A2）的下层相（U2）; （d）任选地将在步骤（c）中获得的底部混合物（S1）在第二相分离装置中通过相分离处理成上相（O2）和下相（U2）; （e）在热裂解单元中裂解包含在底部混合物（S1）或任选在下层相（U2）中的至少一种甲酸/胺加合物（A2），以获得至少一种叔胺（A1 ），其在步骤（a）中被返回到氢化反应器中，并且从热裂解单元排出的甲酸，其中一氧化碳被添加到下相（U1），萃余液（R1）或 直接在步骤（e）之前和/或之中将步骤（c）之前和/或之中的萃余液（R 2）和/或一氧化碳加入到底部混合物（S1）或任选的底部相（U2）中。

    VERFAHREN ZUR HERSTELLUNG VON REINEM XYLYLENDIAMIN (XDA)
    50.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON REINEM XYLYLENDIAMIN (XDA) 有权
    用于生产纯二甲胺（XDA）

    公开(公告)号：EP1984320A2

    公开(公告)日：2008-10-29

    申请号：EP07704111.9

    申请日：2007-01-24

    Applicant: BASF SE

    Inventor： HUGO, Randolf ,  DAHMEN, Kirsten ,  HUBER, Sabine

    IPC: C07C209/84 ,  C07C211/27

    CPC classification number: C07C209/84 ,  Y10S203/20 ,  C07C211/27

    Abstract: The invention relates to a method for producing pure xylylenediamine (XDA) by continuous distillation of crude xylylenediamine (XDA) in a column, by using a side stream distillation column, the XDA being drawn off through the lateral discharge and the bottom product of the distillation column being further concentrated in an additional concentration step. The condensate obtained in the concentration step is returned to the side draw distillation column.

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