公开(公告)号：US07872131B2

公开(公告)日：2011-01-18

申请号：US11579923

申请日：2005-05-13

申请人： Ortmund Lang ,  Matthias Frauenkron

发明人： Ortmund Lang ,  Matthias Frauenkron

IPC分类号： C07D487/08

CPC分类号： C07D487/08

摘要： Process for preparing a solution of pure triethylenediamine (TEDA), in which TEDA is vaporized, the gaseous TEDA is passed into a liquid solvent 1 (quench) and the TEDA is crystallized from the resulting solution and separated off (solid-liquid separation), wherein the crystalline TEDA obtained is dissolved in a solvent 2 and a stripping gas is passed through the resulting solution (stripping).

摘要翻译： 制备TEDA蒸发的纯三亚乙基二胺（TEDA）溶液的方法，将气态TEDA送入液体溶剂1（骤冷），并将TEDA从所得溶液中结晶并分离（固液分离） 其中将获得的结晶TEDA溶解在溶剂2中，并使汽提气体通过所得溶液（汽提）。

公开(公告)号：US20080312439A1

公开(公告)日：2008-12-18

申请号：US12095868

申请日：2006-12-07

申请人： Ortmund Lang ,  Jurgen Ciprian ,  Matthias Rauls ,  Matthias Frauenkron ,  Gunther van Cauwenberge ,  Jan Nouwen

发明人： Ortmund Lang ,  Jurgen Ciprian ,  Matthias Rauls ,  Matthias Frauenkron ,  Gunther van Cauwenberge ,  Jan Nouwen

IPC分类号： C07D487/02

CPC分类号： C07D487/08

摘要： The present invention relates to a process for working up triethylenediamine (TEDA) in which TEDA is vaporized and the gaseous TEDA is introduced into a solvent, subsequently crystallized and separated off from this and the mother liquor formed is extracted with an extractant, wherein the raffinate phase obtained after the extraction stage is worked up further by adsorption in which extractant and/or by-products and intermediates present in the raffinate phase are removed therefrom.

摘要翻译： 本发明涉及一种处理其中TEDA蒸发并将气态TEDA引入溶剂中的三亚乙基二胺（TEDA）的方法，随后结晶并与其分离，形成的母液用萃取剂萃取，其中萃余剂 通过吸附进一步处理提取阶段之后获得的相，其中从其中除去萃余剂和/或副产物和存在于萃余相中的中间体。

公开(公告)号：US20080021218A1

公开(公告)日：2008-01-24

申请号：US11579923

申请日：2005-05-13

申请人： Ortmund Lang ,  Matthias Frauenkron

发明人： Ortmund Lang ,  Matthias Frauenkron

IPC分类号： C07D487/08

CPC分类号： C07D487/08

摘要： Process for preparing a solution of pure triethylenediamine (TEDA), in which TEDA is vaporized, the gaseous TEDA is passed into a liquid solvent 1 (quench) and the TEDA is crystallized from the resulting solution and separated off (solid-liquid separation), wherein the crystalline TEDA obtained is dissolved in a solvent 2 and a stripping gas is passed through the resulting solution (stripping).

摘要翻译： 制备TEDA蒸发的纯三亚乙基二胺（TEDA）溶液的方法，将气态TEDA送入液体溶剂1（骤冷），并将TEDA从所得溶液中结晶并分离（固液分离） 其中将获得的结晶TEDA溶解在溶剂2中，并使汽提气体通过所得溶液（汽提）。

公开(公告)号：US07271292B2

公开(公告)日：2007-09-18

申请号：US11494733

申请日：2006-07-28

申请人： Michael Jödecke ,  Ortmund Lang ,  Gunther van Cauwenberge ,  Matthias Frauenkron

发明人： Michael Jödecke ,  Ortmund Lang ,  Gunther van Cauwenberge ,  Matthias Frauenkron

IPC分类号： C07C209/84 ,  C07C209/86 ,  C07D295/023

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.

公开(公告)号：US06958397B2

公开(公告)日：2005-10-25

申请号：US10482644

申请日：2002-07-04

申请人： Matthias Frauenkron ,  Bernd Stein ,  Ortmund Lang

发明人： Matthias Frauenkron ,  Bernd Stein ,  Ortmund Lang

IPC分类号： B01J29/40 ,  C07B61/00 ,  C07D487/08

CPC分类号： C07D487/08 ,  B01J29/40 ,  B01J2229/42

摘要： The present invention describes a process for the preparation of triethylenediamine by reacting piperazine over a zeolite catalyst which, in addition to SiO2, contains an oxide of at least one further divalent, trivalent or tetravalent metal M, wherein the zeolite has a molar Si/M ratio of >100. In particular, a zeolite of the ZSM-5 type is used. The use of the zeolites permits suppression of the undesired formation of the byproduct 2-ethylpiperazine and hence considerable simplification of the working-up, in combination with high piperazine conversions and a small excess of water.

摘要翻译： 本发明描述了一种通过哌嗪在沸石催化剂上反应制备三亚乙基二胺的方法，该沸石催化剂除SiO 2外还含有至少另外一种二价，三价或四价金属M的氧化物，其中 沸石的Si / M摩尔比> 100。 特别地，使用ZSM-5型的沸石。 沸石的使用允许抑制副产物2-乙基哌嗪的不期望的形成，因此相当简化的加工，加上高哌嗪转化率和少量过量的水。