公开(公告)号：EP2398754A2

公开(公告)日：2011-12-28

申请号：EP09763297.0

申请日：2009-06-24

申请人： E. I. du Pont de Nemours and Company

发明人： TIERI, Stephen, M. ,  HAGEDORN, John, Joseph ,  SCHULTZ, James, A. ,  LEIB, Tiberiu, M. ,  WOLFF, Susanne, Hawthorne ,  SENGUPTA, Sourav, Kumar ,  SHANKWITZ, Gregory, Paul

IPC分类号： C07C29/145 ,  C07C31/38

CPC分类号： C07C29/145 ,  C07C31/38

摘要： A continuous process for producing hexafluoroisopropanol is provided which comprises contacting hexafluoroacetone with hexafluoroisopropanol and hydrogen to produce a liquid feed stream; introducing the liquid feed stream to a reactor containing an immobilized hydrogenation catalyst to convert the hexafluoroacetone to hexafluoroisopropanol and provide a product stream; and recovering at least a portion of the hexafluoroisopropanol from the product stream. Preferably a portion of the product stream is recycled. The reactor can be a packed bed or stirred tank reactor.

公开(公告)号：EP2217570B1

公开(公告)日：2012-12-26

申请号：EP08853164.5

申请日：2008-11-24

申请人： E. I. du Pont de Nemours and Company

发明人： DINDI, Hasan ,  SCHULTZ, James, A.

IPC分类号： C07D213/73 ,  C07C201/08 ,  C08G73/18

CPC分类号： C07D213/73 ,  C07C209/76 ,  C08G73/18 ,  C07C211/52

公开(公告)号：EP2470495A2

公开(公告)日：2012-07-04

申请号：EP10812635.0

申请日：2010-08-27

申请人： E. I. du Pont de Nemours and Company

发明人： RITTER, Joachim, C. ,  SCHULTZ, James, A. ,  SENGUPTA, Sourav, Kumar ,  WALCK, Katelyn Rae ,  CORBIN, David, Richard

IPC分类号： C07C201/08 ,  C07C205/06 ,  C07C205/57 ,  C07C205/58

CPC分类号： C07C201/08 ,  C07C205/06

摘要： Aromatic compounds such as o-xylene are selectively nitrated by nitric acid in the presence of polyphosphoric acid and a large pore, acidic zeolite or a large pore, hydrophobic molecular sieve. This is an environmentally friendly, commercially viable, high conversion process for the selective nitration of aromatic compounds in the para position.

公开(公告)号：EP2398754B1

公开(公告)日：2015-06-03

申请号：EP09763297.0

申请日：2009-06-24

申请人： E. I. du Pont de Nemours and Company

发明人： TIERI, Stephen, M. ,  HAGEDORN, John, Joseph ,  SCHULTZ, James, A. ,  LEIB, Tiberiu, M. ,  WOLFF, Susanne, Hawthorne ,  SENGUPTA, Sourav, Kumar ,  SHANKWITZ, Gregory, Paul

IPC分类号： C07C29/145 ,  C07C31/38

CPC分类号： C07C29/145 ,  C07C31/38

公开(公告)号：EP2217570A2

公开(公告)日：2010-08-18

申请号：EP08853164.5

申请日：2008-11-24

申请人： E. I. du Pont de Nemours and Company

发明人： DINDI, Hasan ,  SCHULTZ, James, A.

IPC分类号： C07D213/73 ,  C07C201/08 ,  C08G73/18

CPC分类号： C07D213/73 ,  C07C209/76 ,  C08G73/18 ,  C07C211/52

摘要： A process for the preparation of diaminodinitropyridine (see reaction sequence) or diaminodinitrobenzene by contacting an aminopyridine or aminobenzene with oleum and nitric acid, wherein the improvement comprises adding at least about 1% molar excess of nitric acid, based upon the aminopyridine or aminobenzene, with stirring for at least two hours to form first the intermediate sulfonic acid, and then diaminodinitropyridine or diaminodinitrobenzene, and use of such products in the preparation of rigid rod polymers is disclosed.

摘要翻译： 一种通过使氨基吡啶或氨基苯与发烟硫酸和硝酸接触来制备二氨基二硝基吡啶（见反应顺序）或二氨基二硝基苯的方法，其中改进之处包括基于氨基吡啶或氨基苯添加至少约1摩尔％过量的硝酸， 搅拌至少两小时以形成第一中间体磺酸，然后形成二氨基二硝基吡啶或二氨基二硝基苯，并且公开了这些产物在制备刚性棒状聚合物中的用途。