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    Method for Obtaining Cyclododecatriene by Evaporation
    1.
    发明申请
    Method for Obtaining Cyclododecatriene by Evaporation 有权
    通过蒸发获得环十二碳三烯的方法

    公开(公告)号：US20080217158A1

    公开(公告)日：2008-09-11

    申请号：US11994122

    申请日：2006-06-30

    申请人： Bernd Rumpf ,  Ortmund Lang ,  Andrea Haunert ,  Thomas Genger ,  Anton Meier

    发明人： Bernd Rumpf ,  Ortmund Lang ,  Andrea Haunert ,  Thomas Genger ,  Anton Meier

    IPC分类号： B01D1/02 ,  B01D1/26 ,  B01D1/28

    CPC分类号： C07C7/04 ,  C07C13/277

    摘要： Process for recovering cyclododecatriene (CDT) from a solution comprising CDT and high boilers such as deactivated catalyst and polymers, which comprises feeding the solution into a preheater and heating it, subsequently depressurizing it through a downstream pressure maintenance device and feeding the resulting two-phase mixture into a helical tube evaporator and there reducing the CDT content of the liquid phase by partial evaporation and discharging a gaseous product stream having an increased concentration of CDT.

    摘要翻译： 从包括CDT和高沸点剂如失活催化剂和聚合物的溶液中回收环十二碳三烯（CDT）的方法，其包括将溶液进料到预热器中并加热，随后通过下游压力维持装置将其减压并将所得的两相 混合物进入螺旋管蒸发器，并且通过部分蒸发降低液相的CDT含量并排出具有增加的CDT浓度的气态产物流。

    Method for obtaining cyclododecatriene by evaporation
    2.
    发明授权
    Method for obtaining cyclododecatriene by evaporation 有权
    通过蒸发得到环十二碳三烯的方法

    公开(公告)号：US07959766B2

    公开(公告)日：2011-06-14

    申请号：US11994122

    申请日：2006-06-30

    申请人： Bernd Rumpf ,  Ortmund Lang ,  Andrea Haunert ,  Thomas Genger ,  Anton Meier

    发明人： Bernd Rumpf ,  Ortmund Lang ,  Andrea Haunert ,  Thomas Genger ,  Anton Meier

    IPC分类号： B01D3/04 ,  C07C7/04 ,  C07C13/277

    CPC分类号： C07C7/04 ,  C07C13/277

    摘要： Process for recovering cyclododecatriene (CDT) from a solution containing CDT and high boilers such as deactivated catalyst and polymers, which includes feeding the solution into a preheater and heating it, subsequently depressurizing it through a downstream pressure maintenance device and feeding the resulting two-phase mixture into a helical tube evaporator and there reducing the CDT content of the liquid phase by partial evaporation and discharging a gaseous product stream having an increased concentration of CDT.

    摘要翻译： 从含有CDT和高沸点物如失活催化剂和聚合物的溶液中回收环十二碳三烯（CDT）的方法，其包括将溶液进料到预热器中并加热，随后通过下游压力维持装置将其减压并将所得的两相 混合物进入螺旋管蒸发器，并且通过部分蒸发降低液相的CDT含量并排出具有增加的CDT浓度的气态产物流。

    Method for producing highly concentrated formaldehyde solution
    4.
    发明申请
    Method for producing highly concentrated formaldehyde solution 失效
    生产高浓度甲醛溶液的方法

    公开(公告)号：US20070135660A1

    公开(公告)日：2007-06-14

    申请号：US10588662

    申请日：2005-02-10

    申请人： Bernd Rumpf ,  Eckhard Stroefer ,  Ortmund Lang ,  Neven Lang

    发明人： Bernd Rumpf ,  Eckhard Stroefer ,  Ortmund Lang ,  Neven Lang

    IPC分类号： C07C45/00

    CPC分类号： C07C45/82 ,  C07C47/04

    摘要： A process for preparing a high-concentration formaldehyde solution by removing water from a lower-concentration formaldehyde solution having a formaldehyde content of from 5 to 50% by weight, in which the lower-concentration formaldehyde solution is fed to a preheater and heated in the preheater, depressurized via a pressure maintenance device and concentrated in a helical tube evaporator to give a vapor stream and the high-concentration formaldehyde solution as bottom stream, wherein the heated lower-concentration formaldehyde hyde solution is depressurized in the pressure maintenance device to give a two-phase mixture which is fed into the helical tube evaporator, is proposed.

    摘要翻译： 通过从甲醛含量为5〜50重量％的低浓度甲醛溶液中除去水而制备高浓度甲醛溶液的方法，其中将低浓度甲醛溶液加入到预热器中并在 预热器，通过压力维持装置减压，并浓缩在螺旋管蒸发器中，得到蒸气流，高浓度甲醛溶液作为底部流，其中加压的低浓度甲醛海藻溶液在压力维持装置中减压，得到 提出了进入螺旋管蒸发器的两相混合物。

    Method for producing highly concentrated formaldehyde solution
    6.
    发明授权
    Method for producing highly concentrated formaldehyde solution 失效
    生产高浓度甲醛溶液的方法

    公开(公告)号：US07342139B2

    公开(公告)日：2008-03-11

    申请号：US10588662

    申请日：2005-02-10

    申请人： Bernd Rumpf ,  Eckhard Ströfer ,  Ortmund Lang ,  Neven Lang

    发明人： Bernd Rumpf ,  Eckhard Ströfer ,  Ortmund Lang ,  Neven Lang

    IPC分类号： C07C45/78

    CPC分类号： C07C45/82 ,  C07C47/04

    摘要： A process for preparing a high-concentration formaldehyde solution by removing water from a lower-concentration formaldehyde solution having a formaldehyde content of from 5 to 50% by weight, in which the lower-concentration formaldehyde solution is fed to a preheater and heated in the preheater, depressurized via a pressure maintenance device and concentrated in a helical tube evaporator to give a vapor stream and the high-concentration formaldehyde solution as bottom stream, wherein the heated lower-concentration formaldehyde hyde solution is depressurized in the pressure maintenance device to give a two-phase mixture which is fed into the helical tube evaporator, is proposed.

    摘要翻译： 通过从甲醛含量为5〜50重量％的低浓度甲醛溶液中除去水而制备高浓度甲醛溶液的方法，其中将低浓度甲醛溶液加入到预热器中并在 预热器，通过压力维持装置减压，并浓缩在螺旋管蒸发器中，得到蒸气流，高浓度甲醛溶液作为底部流，其中加压的低浓度甲醛海藻溶液在压力维持装置中减压，得到 提出了进入螺旋管蒸发器的两相混合物。

    Work-up of the mother liquor obtained in the preparation of high-purity triethylenediamine
    7.
    发明授权
    Work-up of the mother liquor obtained in the preparation of high-purity triethylenediamine 有权
    在制备高纯三乙二胺时得到的母液的处理

    公开(公告)号：US07345173B2

    公开(公告)日：2008-03-18

    申请号：US10138337

    申请日：2002-05-06

    申请人： Ortmund Lang ,  Bernd Rumpf ,  Matthias Frauenkron ,  Dirk Funhoff ,  Thomas Manderbach ,  Bernd Stein

    发明人： Ortmund Lang ,  Bernd Rumpf ,  Matthias Frauenkron ,  Dirk Funhoff ,  Thomas Manderbach ,  Bernd Stein

    IPC分类号： C07D487/00

    CPC分类号： C07D487/08

    摘要： In a process for the purification of triethylenediamine (TEDA) in which TEDA is vaporized and the gaseous TEDA is passed into a liquid solvent and is subsequently crystallized from this, the mother liquor obtained after the TEDA has been crystallized is extracted with an extractant which is immiscible or only slightly miscible with the solvent of the mother liquor and in which TEDA is readily soluble, and the TEDA-depleted mother liquor obtained after extraction and/or the TEDA-enriched extractant which has been used for the extraction are/is returned to the process.

    摘要翻译： 在其中TEDA蒸发并将气态TEDA进入液体溶剂并随后从其中结晶的三亚乙基二胺（TEDA）的纯化方法中，在TEDA结晶后获得的母液用萃取剂萃取，萃取剂为 不混溶或仅与母液的溶剂轻微混溶，其中TEDA易溶，并且在萃取后获得的TEDA贫化母液和/或用于萃取的富含TEDA的萃取剂返回至 的过程。

    Process for distillatively removing piperazine from an ethylenediamine-piperazine mixture
    9.
    发明申请
    Process for distillatively removing piperazine from an ethylenediamine-piperazine mixture 有权
    从乙二胺 - 哌嗪混合物中蒸馏除去哌嗪的方法

    公开(公告)号：US20070037980A1

    公开(公告)日：2007-02-15

    申请号：US11494733

    申请日：2006-07-28

    申请人： Michael Joedecke ,  Ortmund Lang ,  Gunther Cauwenberge ,  Matthias Frauenkron

    发明人： Michael Joedecke ,  Ortmund Lang ,  Gunther Cauwenberge ,  Matthias Frauenkron

    IPC分类号： C07D241/04

    CPC分类号： C07D295/00

    摘要： The invention relates to a process for continuously, distillatively removing piperazine from an ethylenediamine-piperazine mixture under pressure at elevated temperature, by discharging the ethylenediamine at the top and the piperazine at the bottom of a distillation column. For the purpose of improving the quality of the piperazine, especially its color and color stability, the piperazine is subjected directly to circulation conveying it through an evaporator unit operated at a temperature of from about 160° C. to about 170° C. and returning it into the distillation column. After a residence time of from about 30 min to about 60 min in the circulation system, the piperazine is discharged in vapor form from a side draw in the lower section of the distillation column.

    摘要翻译： 本发明涉及一种在高温压力下从乙二胺 - 哌嗪混合物中连续蒸馏除去哌嗪的方法，通过排出顶部的乙二胺和蒸馏塔底部的哌嗪。 为了提高哌嗪的质量，特别是其颜色和颜色稳定性，哌嗪直接进行循环，将其通过在约160℃至约170℃的温度下操作的蒸发器单元输送，并返回 进入蒸馏塔。 在循环系统中约30分钟至约60分钟的停留时间后，哌嗪从蒸馏塔下部的侧馏分以蒸汽形式排出。