Method for increasing the cutting hardness of a molded body
    1.
    发明申请
    Method for increasing the cutting hardness of a molded body 失效
    提高成型体的切削硬度的方法

    公开(公告)号:US20060116517A1

    公开(公告)日:2006-06-01

    申请号:US10559493

    申请日:2004-06-04

    IPC分类号: C07D487/04 C04B33/34

    摘要: An increase in the cutting hardness of a shaped body comprising a crystalline aluminosilicate is achieved by treating the shaped body with a gas comprising water vapor at from 100 to 600° C. and an absolute pressure of from 0.1 to 10 bar for a period of at least 20 hours, and this shaped body having an increased cutting hardness can be used in processes for chemical synthesis, in particular in a process for preparing triethylenediamine (TEDA) by reaction of ethylenediamine (EDA) and/or piperazine (PIP).

    摘要翻译: 包含结晶硅铝酸盐的成形体的切削硬度的增加通过用包含100-600℃的水蒸气和0.1至10巴的绝对压力的气体处理成型体达到一段时间 至少20小时,具有增加的切削硬度的成形体可用于化学合成的方法中,特别是在通过乙二胺(EDA)和/或哌嗪(PIP)的反应制备三亚乙基二胺(TEDA)的方法中。

    Method for preparing triethylenediamine (TEDA)
    2.
    发明授权
    Method for preparing triethylenediamine (TEDA) 失效
    制备三亚乙基二胺(TEDA)的方法

    公开(公告)号:US07754139B2

    公开(公告)日:2010-07-13

    申请号:US10559493

    申请日:2004-06-04

    IPC分类号: B28B3/20

    摘要: An increase in the cutting hardness of a shaped body comprising a crystalline aluminosilicate is achieved by treating the shaped body with a gas comprising water vapor at from 100 to 600° C. and an absolute pressure of from 0.1 to 10 bar for a period of at least 20 hours, and this shaped body having an increased cutting hardness can be used in processes for chemical synthesis, in particular in a process for preparing triethylenediamine (TEDA) by reaction of ethylenediamine (EDA) and/or piperazine (PIP).

    摘要翻译: 包含结晶硅铝酸盐的成形体的切削硬度的增加通过用包含100-600℃的水蒸气和0.1至10巴的绝对压力的气体处理成形体来实现一段时间 至少20小时,具有增加的切削硬度的成形体可用于化学合成的方法中,特别是在通过乙二胺(EDA)和/或哌嗪(PIP)的反应制备三亚乙基二胺(TEDA)的方法中。

    Work-up of the mother liquor obtained in the preparation of high-purity triethylenediamine
    3.
    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

    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。

    Method of selectively synthesizing triethylenediamine
    4.
    发明授权
    Method of selectively synthesizing triethylenediamine 失效
    选择性合成三亚乙基二胺的方法

    公开(公告)号:US06958397B2

    公开(公告)日:2005-10-25

    申请号:US10482644

    申请日:2002-07-04

    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。

    Process for the preparation of triethylenediamine (TEDA) from ethylenediamine
    8.
    发明授权
    Process for the preparation of triethylenediamine (TEDA) from ethylenediamine 有权
    从乙二胺制备三亚乙基二胺(TEDA)的方法

    公开(公告)号:US07115742B2

    公开(公告)日:2006-10-03

    申请号:US10359244

    申请日:2003-02-06

    IPC分类号: C07D487/04

    CPC分类号: C07D487/08 Y02P20/582

    摘要: A process for the preparation of triethylenediamine (TEDA) by reaction of ethylenediamine (EDA) in the presence of a zeolite catalyst, wherein the zeolite catalyst contains one or more metals M in oxidation states II, III or IV as oxides. The desired molar ratio of SiO2 to metal oxide of the zeolite catalyst depends on the oxidation state of the metal M as specified herein. The reaction temperature is from 250 to 500° C. TEDA is an important basic chemical and is used, among other things, in the preparation of pharmaceuticals and plastics, in particular as a catalyst in the preparation of polyurethanes.

    摘要翻译: 一种在沸石催化剂存在下通过乙二胺(EDA)反应制备三亚乙基二胺(TEDA)的方法,其中沸石催化剂含有一种或多种氧化态为II,III或IV的金属M作为氧化物。 沸石催化剂所需的SiO 2与金属氧化物的摩尔比取决于金属M的氧化态,如本文所述。 反应温度为250-500℃.TEDA是重要的基础化学品,尤其用于制备药物和塑料,特别是作为制备聚氨酯的催化剂。

    Process for the preparation of triethylenediamine (TEDA)
    9.
    发明授权
    Process for the preparation of triethylenediamine (TEDA) 有权
    三亚乙基二胺(TEDA)的制备方法

    公开(公告)号:US06562971B2

    公开(公告)日:2003-05-13

    申请号:US09765625

    申请日:2001-06-26

    IPC分类号: C07D295023

    CPC分类号: C07D487/08 Y02P20/582

    摘要: A process for the preparation of triethylenediamine (TEDA) by reaction of ethylenediamine (EDA) in the presence of a zeolite catalyst, wherein the zeolite catalyst comprises one or more metals M in oxidation states II, III or IV as oxides, and for M=Al, has an SiO2/M2O3 molar ratio of greater than 1400:1, for M=metal in oxidation state II or M=two or more metals in oxidation state II, has an SiO2/MO molar ratio of greater than 100:1, for M=metal in oxidation state III or M=two or more metals in oxidation state III, has an SiO2/M2O3 molar ratio of greater than 100:1 and for M=metal in oxidation state IV or M=two or more metals in oxidation state IV, has an SiO2/MO2 molar ratio of greater than 10:1, and the reaction temperature is from 250 to 500° C.

    摘要翻译: 在沸石催化剂存在下,通过乙二胺(EDA)反应制备三亚乙基二胺(TEDA)的方法,其中沸石催化剂包含一种或多种氧化态为II,III或IV的氧化物的金属M,M = Al, 对于M =氧化态II的金属或M =氧化态II的两种或多种金属,SiO 2 / M 2 O 3的摩尔比大于1400:1,对于M =氧化态III或M =氧化态III中的两种或更多种金属的金属,具有大于100:1的SiO 2 / M 2 O 3摩尔比,M =氧化态IV或M =处于氧化态的二种或更多种金属IV ,SiO 2 / MO 2摩尔比大于10:1,反应温度为250-500℃。