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公开(公告)号:US07468461B2
公开(公告)日:2008-12-23
申请号:US12057617
申请日:2008-03-28
申请人: Frederik Van Laar , Ekkehard Schwab , Steffen Oehlenschlaeger , Hartwig Voss , Wolfgang Mackenroth , Konrad Morgenschweis , Ulrich Penzel , Bernd Weidner
发明人: Frederik Van Laar , Ekkehard Schwab , Steffen Oehlenschlaeger , Hartwig Voss , Wolfgang Mackenroth , Konrad Morgenschweis , Ulrich Penzel , Bernd Weidner
IPC分类号: C07C209/00 , B01J23/89
CPC分类号: C07C209/36 , B01J21/18 , B01J23/892 , B01J37/03 , B01J37/14 , B01J37/18 , C07C211/51
摘要: The present invention provides a process for hydrogenating aromatic nitro compounds to the corresponding amines in the presence of hydrogenation catalysts, which comprises using hydrogenation catalysts in which nickel and platinum are present on a support in the form of an alloy having an atomic ratio of nickel to platinum in the alloy of between 30:70 and 70:30.
摘要翻译: 本发明提供了在氢化催化剂存在下将芳族硝基化合物氢化成相应的胺的方法,该方法包括使用氢化催化剂,其中镍和铂以合金的形式存在于载体上,其原子比为镍与 合金中的铂在30:70和70:30之间。
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公开(公告)号:US20080177111A1
公开(公告)日:2008-07-24
申请号:US12057617
申请日:2008-03-28
申请人: Frederik van Laar , Ekkehard Schwab , Steffen Oehlenschlager , Hartwig Voss , Wolfgang Mackenroth , Konrad Morgenschweis , Ulrich Penzel , Bernd Weidner
发明人: Frederik van Laar , Ekkehard Schwab , Steffen Oehlenschlager , Hartwig Voss , Wolfgang Mackenroth , Konrad Morgenschweis , Ulrich Penzel , Bernd Weidner
IPC分类号: C07C209/00
CPC分类号: C07C209/36 , B01J21/18 , B01J23/892 , B01J37/03 , B01J37/14 , B01J37/18 , C07C211/51
摘要: The present invention provides a process for hydrogenating aromatic nitro compounds to the corresponding amines in the presence of hydrogenation catalysts, which comprises using hydrogenation catalysts in which nickel and platinum are present on a support in the form of an alloy having an atomic ratio of nickel to platinum in the alloy of between 30:70 and 70:30.
摘要翻译: 本发明提供了在氢化催化剂存在下将芳族硝基化合物氢化成相应的胺的方法,该方法包括使用氢化催化剂,其中镍和铂以合金的形式存在于载体上,其原子比为镍与 合金中的铂在30:70和70:30之间。
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公开(公告)号:US20070149814A1
公开(公告)日:2007-06-28
申请号:US10575924
申请日:2004-10-15
申请人: Frederik van Laar , Ekkehard Schwab , Steffen Oehlenschlager , Hartwig Voss , Wolfgang Mackenroth , Konrad Morgenschweis , Ulrich Penzel , Bernd Weidner
发明人: Frederik van Laar , Ekkehard Schwab , Steffen Oehlenschlager , Hartwig Voss , Wolfgang Mackenroth , Konrad Morgenschweis , Ulrich Penzel , Bernd Weidner
IPC分类号: C07C209/36 , B01J21/00
CPC分类号: C07C209/36 , B01J21/18 , B01J23/892 , B01J37/03 , B01J37/14 , B01J37/18 , C07C211/51
摘要: The present invention provides a process for hydrogenating aromatic nitro compounds to the corresponding amines in the presence of hydrogenation catalysts, which comprises using hydrogenation catalysts in which nickel and platinum are present on a support in the form of an alloy having an atomic ratio of nickel to platinum in the alloy of between 30:70 and 70:30.
摘要翻译: 本发明提供了在氢化催化剂存在下将芳族硝基化合物氢化成相应的胺的方法,该方法包括使用氢化催化剂,其中镍和铂以合金的形式存在于载体上,其原子比为镍与 合金中的铂在30:70和70:30之间。
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公开(公告)号:US07091383B2
公开(公告)日:2006-08-15
申请号:US10500862
申请日:2003-01-30
申请人: Dominic Vanoppen , Ekkehard Schwab , Frederick van Laar , Hartwig Voss , Steffen Oehlenschlaeger , Wolfgang Mackenroth , Konrad Morgenschweis , Ulrich Penzel , Bernd Weidner
发明人: Dominic Vanoppen , Ekkehard Schwab , Frederick van Laar , Hartwig Voss , Steffen Oehlenschlaeger , Wolfgang Mackenroth , Konrad Morgenschweis , Ulrich Penzel , Bernd Weidner
IPC分类号: C07C209/36
CPC分类号: C07C209/36 , C07C209/86 , C07C211/50 , C07C211/46
摘要: The invention provides a process for preparing amines by catalytic hydrogenation of nitroaromatics and subsequent removal of the catalysts from the reaction mixture, which contains at least one aromatic amine and water, which comprises carrying out the removal of the catalysts by means of membrane filtration, which is carried out at a pressure on the suspension side of from 5 to 50 bar, a pressure difference between the suspension side and the permeate side of at least 0.3 bar and a flux rate on the suspension side of from 1 to 6 m/s.
摘要翻译: 本发明提供了一种通过硝基芳族化合物的催化氢化和随后从含有至少一种芳族胺和水的反应混合物中除去催化剂来制备胺的方法,该方法包括通过膜过滤进行催化剂的除去, 在悬浮侧的压力为5至50巴,悬浮液侧和渗透侧之间的压力差为至少0.3巴,悬浮侧的通量速率为1至6m / s。
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公开(公告)号:US07595424B2
公开(公告)日:2009-09-29
申请号:US11816658
申请日:2006-02-22
申请人: Dominic Vanoppen , Frederik Van Laar , Thomas Beuermann , Georg Krug , Steffen Oehlenschlaeger , Ekkehard Schwab , Hartwig Voss , Konrad Morgenschweis , Ulrich Penzel , Dietrich Tittelbach-Helmrich
发明人: Dominic Vanoppen , Frederik Van Laar , Thomas Beuermann , Georg Krug , Steffen Oehlenschlaeger , Ekkehard Schwab , Hartwig Voss , Konrad Morgenschweis , Ulrich Penzel , Dietrich Tittelbach-Helmrich
IPC分类号: C07C209/36
CPC分类号: B01J19/0033 , B01J8/006 , B01J8/007 , B01J8/22 , B01J19/002 , B01J2208/00637 , B01J2219/002 , B01J2219/00225 , B01J2219/00263 , C07C209/36 , G01N21/31 , C07C211/51
摘要: The invention relates to a process for preparing aromatic amines by hydrogenation of nitroaromatics in the presence of catalysts, in which a fluid reaction mixture which comprises amines and from which the catalysts are separated off is formed in a reactor. After the catalysts have been separated off, a measurement of the absorption of UV/VIS radiation by the reaction mixture is carried out to determine the concentration of nitro and nitroso compounds in the reaction mixture.
摘要翻译: 本发明涉及通过在催化剂存在下氢化硝基芳族化合物来制备芳族胺的方法,其中在反应器中形成包含胺并在其中分离催化剂的流体反应混合物。 催化剂分离后,进行反应混合物对UV / VIS辐射吸收的测定,以确定反应混合物中硝基和亚硝基化合物的浓度。
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公开(公告)号:US20100015012A1
公开(公告)日:2010-01-21
申请号:US12505238
申请日:2009-07-17
申请人: Dominic Vanoppen , Frederik Van Laar , Thomas Beuermann , Georg Krug , Steffen Oehlenschlager , Ekkehard Schwab , Hartwig Voss , Konrad Morgenschweis , Ulrich Penzel , Dietrich Tittelbach-Helmrich
发明人: Dominic Vanoppen , Frederik Van Laar , Thomas Beuermann , Georg Krug , Steffen Oehlenschlager , Ekkehard Schwab , Hartwig Voss , Konrad Morgenschweis , Ulrich Penzel , Dietrich Tittelbach-Helmrich
IPC分类号: B01J19/00
CPC分类号: B01J19/0033 , B01J8/006 , B01J8/007 , B01J8/22 , B01J19/002 , B01J2208/00637 , B01J2219/002 , B01J2219/00225 , B01J2219/00263 , C07C209/36 , G01N21/31 , C07C211/51
摘要: The invention relates to a process for preparing aromatic amines by hydrogenation of nitroaromatics in the presence of catalysts, in which a fluid reaction mixture which comprises amines and from which the catalysts are separated off is formed in a reactor. After the catalysts have been separated off, a measurement of the absorption of UV/VIS radiation by the reaction mixture is carried out to determine the concentration of nitro and nitroso compounds in the reaction mixture.
摘要翻译: 本发明涉及通过在催化剂存在下氢化硝基芳族化合物来制备芳族胺的方法,其中在反应器中形成包含胺并在其中分离催化剂的流体反应混合物。 催化剂分离后,进行反应混合物对UV / VIS辐射吸收的测定,以确定反应混合物中硝基和亚硝基化合物的浓度。
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公开(公告)号:US20080146848A1
公开(公告)日:2008-06-19
申请号:US11816658
申请日:2006-02-22
申请人: Dominic Vanoppen , Frederik van Laar , Thomas Beuemann , Georg Krug , Steffen Oehlenschlager , Ekkehard Schwab , Hartwig Voss , Konrad Morgenschweis , Ulrich Penzel , Dietrich Tittelbach-Helmrich
发明人: Dominic Vanoppen , Frederik van Laar , Thomas Beuemann , Georg Krug , Steffen Oehlenschlager , Ekkehard Schwab , Hartwig Voss , Konrad Morgenschweis , Ulrich Penzel , Dietrich Tittelbach-Helmrich
IPC分类号: C07C211/50 , B01J14/00
CPC分类号: B01J19/0033 , B01J8/006 , B01J8/007 , B01J8/22 , B01J19/002 , B01J2208/00637 , B01J2219/002 , B01J2219/00225 , B01J2219/00263 , C07C209/36 , G01N21/31 , C07C211/51
摘要: The invention relates to a process for preparing aromatic amines by hydrogenation of nitroaromatics in the presence of catalysts, in which a fluid reaction mixture which comprises amines and from which the catalysts are separated off is formed in a reactor. After the catalysts have been separated off, a measurement of the absorption of UV/VIS radiation by the reaction mixture is carried out to determine the concentration of nitro and nitroso compounds in the reaction mixture.
摘要翻译: 本发明涉及通过在催化剂存在下氢化硝基芳族化合物来制备芳族胺的方法,其中在反应器中形成包含胺并在其中分离催化剂的流体反应混合物。 催化剂分离后,进行反应混合物对UV / VIS辐射吸收的测定,以确定反应混合物中硝基和亚硝基化合物的浓度。
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公开(公告)号:US20050177003A1
公开(公告)日:2005-08-11
申请号:US10500862
申请日:2003-01-30
申请人: Dominic Vanoppen , Ekkehard Schwab , Frederik Laar , Hartwig Voss , Steffen Oehlenschlager , Wolfgang Mackenroth , Konrad Morgenschweis , Ulrich Penzel
发明人: Dominic Vanoppen , Ekkehard Schwab , Frederik Laar , Hartwig Voss , Steffen Oehlenschlager , Wolfgang Mackenroth , Konrad Morgenschweis , Ulrich Penzel
IPC分类号: C07C29/36 , C07C209/36 , C07C209/86
CPC分类号: C07C209/36 , C07C209/86 , C07C211/50 , C07C211/46
摘要: The invention provides a process for preparing amines by catalytic hydrogenation of nitroaromatics and subsequent removal of the catalysts from the reaction mixture, which contains at least one aromatic amine and water, which comprises carrying out the removal of the catalysts by means of membrane filtration, which is carried out at a pressure on the suspension side of from 5 to 50 bar, a pressure difference between the suspension side and the permeate side of at least 0.3 bar and a flux rate on the suspension side of from 1 to 6 m/s.
摘要翻译: 本发明提供了一种通过硝基芳族化合物的催化氢化和随后从含有至少一种芳族胺和水的反应混合物中除去催化剂来制备胺的方法,其包括通过膜过滤进行催化剂的除去, 在悬浮侧的压力为5至50巴,悬浮液侧和渗透侧之间的压力差为至少0.3巴,悬浮侧的通量速率为1至6m / s。
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