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公开(公告)号:ES2562797T3
公开(公告)日:2016-03-08
申请号:ES09750568
申请日:2009-05-19
Applicant: UBE INDUSTRIES
Inventor: KUGIMOTO JUNICHI , II NOBUHIRO , DOI TAKASHI , FUJITSU SATORU , GOTOU TADASHI , SHIMOMURA HIDEO , YASUMATSU RYOUTA , KAWAI JOJI
IPC: C07D201/04 , C07B61/00 , C07D225/02
Abstract: Procedimiento para producir laurolactama mediante una reacción de transposición en fase líquida de oxima de ciclododecanona en un disolvente apolar seleccionado de hidrocarburos aromáticos, usando triclorotriazina como catalizador de transposición, en el que la reacción de transposición se realiza en las condiciones de que una disolución de oxima de ciclododecanona contiene agua en dos equivalentes molares o menos de triclorotriazina; comprendiendo dicho procedimiento: (a) una etapa de reacción de transposición en la que se somete la oxima de ciclododecanona a transposición en fase líquida en el disolvente apolar hasta un punto en que la conversión es del 80% o más y de menos del 99%; (b) una etapa de calentamiento posterior en la que se completa la reacción de transposición de modo que la conversión de la oxima de ciclododecanona es del 99,8% o más; y (c) una etapa de eliminación de catalizador en la que se eliminan un precipitado inactivo, un producto intermedio activo y un catalizador residual; y en el que un aparato de reacción usado en dicha etapa de reacción de transposición es diferente de un aparato de reacción usado en dicha etapa de calentamiento posterior.
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公开(公告)号:DE60123531T2
公开(公告)日:2007-07-05
申请号:DE60123531
申请日:2001-08-06
Applicant: UBE INDUSTRIES
Inventor: SUGISE RYOJI , TANAKA SHUJI , KASHIWAGI KOHICHI , DOI TAKASHI , II HIROFUMI , NISHIO MASAYUKI , YOSHIDA SHINICHI , ASADA YUTAKA , MIYAMOTO KAZUO
Abstract: A composition consisting essentially of a diaryl carbonate and contains a furan ring-containing compound in an amount of not more than 1ppm is favorably employable for producing less colored polycarbonate. A process for preparing a composition comprising a diaryl carbonate and a furan ring-containing compound in an amount of not more than 1ppm, from a reaction mixture of decarbonylation of a diaryl oxalate. A process for preparing polycarbonate which comprises reacting a polyhydric compound with a composition comprising a major portion of a diaryl carbonate and a furan ring-containing compound in an amount of not more than 1ppm.
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公开(公告)号:AT341532T
公开(公告)日:2006-10-15
申请号:AT01118724
申请日:2001-08-06
Applicant: UBE INDUSTRIES
Inventor: SUGISE RYOJI , TANAKA SHUJI , KASHIWAGI KOHICHI , DOI TAKASHI , II HIROFUMI , NISHIO MASAYUKI , YOSHIDA SHINICHI , ASADA YUTAKA , MIYAMOTO KAZUO
Abstract: A composition consisting essentially of a diaryl carbonate and contains a furan ring-containing compound in an amount of not more than 1ppm is favorably employable for producing less colored polycarbonate. A process for preparing a composition comprising a diaryl carbonate and a furan ring-containing compound in an amount of not more than 1ppm, from a reaction mixture of decarbonylation of a diaryl oxalate. A process for preparing polycarbonate which comprises reacting a polyhydric compound with a composition comprising a major portion of a diaryl carbonate and a furan ring-containing compound in an amount of not more than 1ppm.
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公开(公告)号:DE69707732D1
公开(公告)日:2001-12-06
申请号:DE69707732
申请日:1997-03-11
Applicant: UBE INDUSTRIES
Inventor: NISHIHIRA KEIGO , TANAKA SHUJI , NISHIDA YUKI , II HIROFUMI , FUJITSU SATORU , HARADA KATSUMASA , SUGISE RYOJI , KASHIWAGI KOICHI , DOI TAKASHI
Abstract: A diaryl carbonate with a high degree of purity is produced at a high yield by (A) subjecting (a) a diaryl oxalate and a phenol compound or (b) an alkylaryl oxalate to transesterification reaction in one or two stages in the presence of a catalyst to prepare a diaryl oxalate, while removing a by-product from the reaction system; (B) collecting the diaryl oxalate from the resultant reaction product mixture of the step (A); (C) subjecting the diaryl oxalate to a decarbonylation reaction, preferably in the presence of a phosphorous compound-containing catalyst, to convert the diaryl oxalate to a corresponding diaryl carbonate, while removing a reaction by-product comprising carbon monoxide from the reaction system; and (D) collecting the diaryl carbonate from the reaction product mixture of the step (C).
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公开(公告)号:DE69703778T2
公开(公告)日:2001-05-03
申请号:DE69703778
申请日:1997-10-06
Applicant: UBE INDUSTRIES
Inventor: HARADA KATSUMASA , IMBE YOICHI , SUGISE RYOJI , KASHIWAGI KOICHI , DOI TAKASHI , NISHIHIRA KEIGO , TANAKA SHUJI , II HIROFUMI
Abstract: A process for preparing a diaryl carbonate from a diaryl oxalate in a liquid phase by decarbonylation is conducted by the steps of: 1) performing a decarbonylation reaction of a diaryl oxalate in the presence of an organic phosphorus compound catalyst to give a reaction mixture of a diaryl carbonate and the organic phosphorus compound catalyst; 2) recovering the diaryl carbonate from the reaction mixture; and 3) performing a decarbonylation reaction of a diaryl oxalate in the presence of the reaction mixture from which the diaryl carbonate has been recovered and to which a halogen atom-containing compound is added, to give a reaction mixture of a diaryl carbonate and the organic phosphorus compound catalyst.
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公开(公告)号:SG70027A1
公开(公告)日:2000-01-25
申请号:SG1997003136
申请日:1997-08-27
Applicant: UBE INDUSTRIES
Inventor: HARADA KATSUMASA , IMBE YOICHI , SUGISE RYOJI , KASHIWAGI KOICHI , SUMIDA TOSHIHIKO , DOI TAKASHI , NISHIO MASAYUKI , NISHIHIRA KEIGO , TANAKA SHIJI , FUJITSU SATORU
IPC: C07C67/333 , C07C68/00 , C07D307/68 , C07D333/38 , C07C69/96 , C07C69/76
Abstract: A catalyst composed of an organic phosphorus compound having a trivalent or pentavalent phosphorus atom and at least one carbon-phosphorus bonding or a combination of the organic phosphorus compound and a halogen atom-containing compound is effective for decarbonylation, that is, for releasing carbon monoxide from a compound containing a moiety of -CO-CO-O- in its molecular structure.
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公开(公告)号:ES2533857T3
公开(公告)日:2015-04-15
申请号:ES09819177
申请日:2009-10-06
Applicant: UBE INDUSTRIES
Inventor: DOI TAKASHI , YOSHIDA YOSHIHIRO , YASUDA SHINJI , WATANABE YOSHIYUKI , FUJITSU SATORU , DOUYAMA DAISUKE
IPC: C07C45/29 , C07B61/00 , C07C47/54 , C07C47/575 , C07D317/54
Abstract: Un procedimiento para preparar un compuesto de aldehído aromático representado por la fórmula (2);**Fórmula** en la que R representa un átomo de halógeno, un grupo hidrocarburo que tiene de 1 a 12 átomos de carbono, un grupo alquiloxi que tiene de 1 a 12 átomos de carbono, un grupo feniloxi, un grupo naftiloxi, un grupo benciloxi o un grupo fenetiloxi, de los que cada grupo puede tener un sustituyente(s); n es un número entero de 0 a 5; y cuando n es 2 o más, los R pueden formar un anillo combinándose entre sí, que comprende hacer reaccionar un compuesto de alcohol metílico aromático representado por la fórmula (1);**Fórmula** en la que R y n tienen el mismo significado que se define anteriormente, y un peróxido bajo un valor de pH de una solución de reacción que es pH 0,5 o mayor y menor de 9 en presencia de un compuesto de molibdeno o bajo un valor de pH de una solución de reacción que es pH 3 o mayor y menor de 8 en presencia de un compuesto de volframio, y al menos una sal seleccionada de una sal de amonio cuaternario y una sal de fosfonio orgánica, en el que el compuesto de aldehído aromático de la fórmula (2) es al menos uno seleccionado del grupo que consiste en las siguientes fórmulas (4) a (7):**Fórmula** en las que R1 y R2 representan cada uno un grupo alquilo que tiene de 1 a 12 átomos de carbono, un grupo fenilo, un grupo naftilo, grupo bencilo o un grupo fenetilo, de los que cada grupo puede tener un sustituyente(s), y m es 1 o 2.
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公开(公告)号:ES2399484T3
公开(公告)日:2013-04-01
申请号:ES08721473
申请日:2008-03-06
Applicant: UBE INDUSTRIES
Inventor: DOI TAKASHI , YOSHIDA YOSHIHIRO , SAJIKI EIJI , FUJITSU SATORU
IPC: C07B61/00 , C07D317/54
Abstract: Un procedimiento de mantenimiento de una calidad de 2-metil-3-(3,4-metilendioxifenil)propanal, quecomprende: incorporar de 50 a 3000 ppm de 1-acetil-3,4-metilendioxibenceno en el 2-metil-3-(3,4-metilendioxifenil)propanal.
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公开(公告)号:MY132509A
公开(公告)日:2007-10-31
申请号:MYPI9704020
申请日:1997-08-29
Applicant: UBE INDUSTRIES
Inventor: HARADA KATSUMASA , TANAKA SHUJI , IMBE YOICHI , SUGISE RYOJI , KASHIWAGI KOICHI , SUMIDA TOSHIHIKO , DOI TAKASHI , NISHIO MASAYUKI , NISHIHIRA KEIGO , FUJITSU SATORU
IPC: C07C69/96 , C07C67/333 , C07C68/00 , C07D307/68 , C07D333/38
Abstract: A CATALYST COMPOSED OF AN ORGANIC PHOSPHORUS COMPOUND HAVING A TRIVALENT OR PENTAVALENT PHOSPHORUS ATOM AND AT LEAST ONE CARBON-PHOSPHORUS BONDING OR A COMBINATION OF THE ORGANIC PHOSPHORUS COMPOUND AND A HALOGEN ATOM-CONTAINING COMPOUND IS EFFECTIVE FOR DECARBONYLATION, THAT IS, FOR RELEASING CARBON MONOXIDE FROM A COMPOUND CONTAINING A MOIETY OF -CO-CO-O- IN ITS MOLECULAR STRUCTURE.
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公开(公告)号:DE69706111D1
公开(公告)日:2001-09-20
申请号:DE69706111
申请日:1997-10-06
Applicant: UBE INDUSTRIES
Inventor: HARADA KATSUMASA , SUGISE RYOJI , KASHIWAGI KOICHI , DOI TAKASHI , NIIDA SADAO , KURAFUJI TOSHIO
Abstract: An improved process for preparing a diaryl carbonate from a diaryl oxalate in a liquid phase by decarbonylation utilizes a reaction vessel composed of two or more reaction chambers which are connected in series. The process is composed of the steps of continuously introducing the diaryl oxalate and an organic phosphorus compound having a trivalent or pentavalent phosphorus atom and at least one carbon-phosphorus bonding into the first chamber and continuously recovering a reaction mixture mainly containing the diaryl carbonate from the last chamber under the condition that a mixture of the diaryl oxalate and the organic phosphorus compound is heated in the reaction chambers, while discharging carbon monoxide released from the mixture.
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