公开(公告)号：EP1212277A2

公开(公告)日：2002-06-12

申请号：EP00959194.2

申请日：2000-08-08

申请人： Mossi & Ghisolfi Overseas S.A.

发明人： KREITMAN, Keith, M. ,  BREWER, Stephen, E. ,  RODDEN, John, B. ,  BLACKBOURN, Robert, L. ,  BROWNSCOMBE, Thomas, L. ,  BUECHELE, James, L. ,  CHEN, Ye-Mon ,  DIAZ, Zaida ,  DUBOIS, Donn, A. ,  JUNE, Raymond, L. ,  MURRAY, Brendan, D. ,  POTTER, Michael, W.

IPC分类号： C07C51/265 ,  C07C51/41 ,  C07C51/43 ,  C07C51/44 ,  C07C51/47 ,  C07C51/487 ,  C07C63/36 ,  C07C63/38

CPC分类号： C08G63/189 ,  B01J27/232 ,  C07C51/02 ,  C07C51/15 ,  C07C51/265 ,  C07C51/412 ,  C07C51/416 ,  C07C51/42 ,  C07C51/43 ,  C07C51/47 ,  C07C51/487 ,  Y02P20/125 ,  C07C63/16 ,  C07C63/36 ,  C07C63/24 ,  C07C63/38 ,  C07C63/26 ,  C07C63/15 ,  C07C63/307

摘要： Disclosed is an integrated process for producing 2,6-naphthalene dicarboxylic acid comprising oxidizing a methylnaphthalene feedstock, hydrodebrominating the crude naphthoic acid product under conditions different from any work known in the art, forming a potassium salt of the acid; disproportionating the potassium salt to produce 2,6 potassium salts of NDA; selectively precipitating K2NDA; selectively precipitating the monopotassium salt of 2,6-NDA(KHNDA); disproportionating the KHNDA into 2,6-NDA and K2NDA; further reacting the 2,6-NDA in a pipe reactor; and drying the product 2,6-NDA by conventional means or directly slurrying directly into a PEN process. The process can tolerate impurities in the economical methylnaphthalene feed and the resulting 2,6-NDA is of high quality with

公开(公告)号：EP1210315A2

公开(公告)日：2002-06-05

申请号：EP00957336.1

申请日：2000-08-08

申请人： Mossi & Ghisolfi Overseas S.A.

发明人： DUBOIS, Donn, A. ,  MURRAY, Brendan, D.

IPC分类号： C07C51/41 ,  C07C63/15 ,  C07C63/38 ,  C07C63/337 ,  B01J27/232

CPC分类号： C08G63/189 ,  B01J23/002 ,  B01J23/80 ,  B01J23/83 ,  B01J27/232 ,  B01J37/088 ,  B01J2523/00 ,  C07C51/02 ,  C07C51/15 ,  C07C51/265 ,  C07C51/412 ,  C07C51/416 ,  C07C51/42 ,  C07C51/43 ,  C07C51/47 ,  C07C51/487 ,  C07C63/38 ,  C07C63/15 ,  C07C63/16 ,  C07C63/36 ,  C07C63/24 ,  C07C63/26 ,  C07C63/307 ,  B01J2523/17 ,  B01J2523/27 ,  B01J2523/48

摘要： Disclosed are halide-free catalyst compositions for the disproportionation/isomerization of aromatic carboxylic acid salts. In one embodiment the catalyst comprises a mixed catalyst of compounds of copper, zinc, and zirconium; and, in a second embodiment, the catalyst comprises a copper compound treated with a base, optionally used with a promoter. Both halide-free catalysts provide advantages with respect to metallurgic problems, as well as good stability, activity and selectivity, and the later is faster kinetically at lower temperatures.