公开(公告)号：EP1163199B1

公开(公告)日：2004-05-26

申请号：EP00917010.1

申请日：2000-03-24

申请人： Codignola, Franco ,  Moro, Antonio

发明人： Codignola, Franco ,  Moro, Antonio

IPC分类号： C07C51/265 ,  C07C63/00 ,  C07C63/26 ,  C07C63/24 ,  B01J8/00

CPC分类号： C07C51/265 ,  B01J8/006 ,  B01J19/1862 ,  B01J2219/00006 ,  B01J2219/00103 ,  B01J2219/00105 ,  B01J2219/00162 ,  C07C63/26 ,  C07C63/24

摘要： A description is given here of a novel process for the production of monocarboxylic and polycarboxylic aromatic acids by the catalytic oxidation in homogeneous phase of aromatic compounds carrying at least one oxidizable substituent group attached directly to the carbon atom of the corresponding aromatic nucleus. The novel process according to the present invention comprises the steps of: a) catalytically oxidizing the corresponding aromatic precursors in liquid phase in the presence of gaseous oxygen; b) filtering the end product; c) recycling into the oxidation reactor at least part of the mother liquors resulting from the filtration stage, and is characterized by the fact that said steps from (a) to (c) are carried out in a closed and continuous cycle operating substantially under the same pressure and temperature conditions, preferably at 2-10 barg and 100-140 °C.

公开(公告)号：EP1214284A1

公开(公告)日：2002-06-19

申请号：EP00918877.2

申请日：2000-04-13

申请人： Codignola, Franco ,  Moro, Antonio

发明人： Codignola, Franco ,  Moro, Antonio

IPC分类号： C07C51/265 ,  C07C51/47 ,  C07C51/487 ,  C07C63/00

CPC分类号： C07C51/487 ,  C07C51/265 ,  C07C51/47 ,  Y10S210/912 ,  C07C63/24 ,  C07C63/26

摘要： A description is given here of a novel process for the production of monocarboxylic and polycarboxylic aromatic acids by the catalytic oxidation in homogeneous phase of aromatic compounds carrying at least one oxidisable substituent group attached directly to the carbon atom of the corresponding aromatic nucleus. This process comprises a purification step in which the crude product resulting from the oxidation stage is supplied to a filling column containing a bed of material having a high adsorbent power with respect to hafnium and/or zirconium polyoxides, operating at a temperature of from 200 to 300 °C and at a pressure of from 30 to 90 barg.

公开(公告)号：EP1163199A1

公开(公告)日：2001-12-19

申请号：EP00917010.1

申请日：2000-03-24

申请人： Codignola, Franco ,  Moro, Antonio

发明人： Codignola, Franco ,  Moro, Antonio

IPC分类号： C07C51/265 ,  C07C63/00 ,  C07C63/26 ,  C07C63/24 ,  B01J8/00

CPC分类号： C07C51/265 ,  B01J8/006 ,  B01J19/1862 ,  B01J2219/00006 ,  B01J2219/00103 ,  B01J2219/00105 ,  B01J2219/00162 ,  C07C63/26 ,  C07C63/24

摘要： A description is given here of a novel process for the production of monocarboxylic and polycarboxylic aromatic acids by the catalytic oxidation in homogeneous phase of aromatic compounds carrying at least one oxidizable substituent group attached directly to the carbon atom of the corresponding aromatic nucleus. The novel process according to the present invention comprises the steps of: a) catalytically oxidizing the corresponding aromatic precursors in liquid phase in the presence of gaseous oxygen; b) filtering the end product; c) recycling into the oxidation reactor at least part of the mother liquors resulting from the filtration stage, and is characterized by the fact that said steps from (a) to (c) are carried out in a closed and continuous cycle operating substantially under the same pressure and temperature conditions, preferably at 2-10 barg and 100-140 °C.

公开(公告)号：EP1231423A1

公开(公告)日：2002-08-14

申请号：EP01830094.7

申请日：2001-02-13

申请人： Eurotecnica Development & Licensing S.p.A. ,  Codignola, Franco

发明人： Codignola, Franco

IPC分类号： F16L9/18 ,  B29C53/58

CPC分类号： F16L9/121 ,  B29C53/583 ,  B29D23/001 ,  B29K2067/00 ,  B29K2105/06 ,  B29K2309/08

摘要： A reinforced tubular manufactured article consists of two concentric tubular layers or cylinders (10,12) respectively inner and outer, preferably made of glass fibre reinforced polyester resin, there being housed in the gap between said two cylinders a reinforcing element (14) consisting of a tubular element, preferably a knurled tube, wound in a helical spiral of predetermined pitch about said inner cylinder.
The winding of said knurled tube (14) on the inner cylinder (10) is carried out when the cylinder is only just formed and the polyester resin which constitutes it is still in the paste-like state, so that the resin penetrates into the surface hollows or knurling of said reinforcing tube (14).

摘要翻译： 增强的管状制品由分别内部和外部的两个同心的管状层（10,12）组成，优选由玻璃纤维增​​强的聚酯树脂制成，其中容纳在所述两个圆筒之间的间隙中，加强元件（14）由 管状元件，优选滚花管，以预定间距围绕所述内筒螺旋形螺旋形卷绕。 所述滚花管（14）在内筒（10）上的卷绕是在刚好形成圆柱体时进行的，构成它的聚酯树脂仍处于糊状状态，使得树脂渗入表面 所述加强管（14）的中空或滚花。