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公开(公告)号：MX2024006376A
公开(公告)日：2024-08-19
申请号：MX2024006376
申请日：2022-11-14
Applicant: BASF SE
Inventor： MISSKE ANDREA , LANG ORTMUND , FLECKENSTEIN CHRISTOPH , FLEISCHHAKER FRIEDERIKE , DECKERT PETRA , EICHHORN SABINE , DE RUITER CORNELIS HENDRICUS , AKIN AYKAN , KORPJUHN FRANK
Abstract: La invención se refiere a un método para producir 2-octil (met)acrilato al hacer reaccionar 2- octanol con ácido (met)acrílico en presencia de un catalizador de esterificación ácido, un inhibidor de polimerización y el agente azeotrópico ciclohexano, que comprende las etapas de: ? proporcionar una unidad de reactor (24), en donde un reactor (1) que tiene un elemento de calentamiento de reactor (30) se ubica dentro de la unidad de reactor (24), ? alimentar 2-octanol (13), ácido (met)acrílico (14), catalizador de esterificación ácido (15), ciclohexano (17) e inhibidor de polimerización (31) al reactor (1), ? llevar a cabo una esterificación en el reactor (1) para formar una mezcla de reacción líquida, en donde la esterificación en el reactor (1) se lleva a cabo a una temperatura de fondo en el rango de 90 a 130°C y a una presión absoluta en el rango de 0.5 a 2.0 bar, y se obtiene una descarga de reacción del reactor (1), en donde la descarga de reacción resultante comprende al menos 2-octil (met)acrilato, 2- octanol, ácido (met)acrílico, catalizador de esterificación ácido, ciclohexano, agua de esterificación e inhibidor de polimerización, y el agua de esterificación formada en la esterificación junto con el agente azeotrópico de ciclohexano forma un azeótropo heterogéneo, ? evaporar el azeótropo heterogéneo de la mezcla de reacción líquida del reactor (1), en donde la evaporación se logra mediante el elemento de calentamiento del reactor (30), y ? retirar el azeótropo heterogéneo gaseoso del reactor (1), en donde el azeótropo heterogéneo gaseoso se condensa en un condensador (5) y luego se introduce en un separador de fases (6), y el agua de esterificación se separa como la fase inferior y el ciclohexano como la fase superior en este separador de fases (6).
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公开(公告)号：AU2022395238A1
公开(公告)日：2024-06-06
申请号：AU2022395238
申请日：2022-11-14
Applicant: BASF SE
Inventor： MISSKE ANDREA , LANG ORTMUND , DECKERT PETRA , DE RUITER CORNELIS HENDRICUS , AKIN AYKAN , KORPJUHN FRANK , FLECKENSTEIN CHRISTOPH , FLEISCHHAKER FRIEDERIKE , EICHHORN SABINE
Abstract: The invention relates to a method for preparing 2-octyl (meth)acrylate by reacting 2-octanol with (meth)acrylic acid in the presence of an acidic esterification catalyst, a polymerisation inhibitor and the entrainer cyclohexane, the method comprising the following steps: • providing a reactor unit (24), a reactor (1) with a reactor heating element (30) being located inside the reactor unit (24), • feeding 2-octanol (13), (meth)acrylic acid (14), acidic esterification catalyst (15), cyclohexane (17) and polymerisation inhibitor (31) into the reactor (1), • performing an esterification in the reactor (1) so as to form a liquid reaction mixture, the esterification taking place in the reactor (1) at a sump temperature in the range from 90 to 130°C and at an absolute pressure in the range of 0.5 to 2.0 bar, and a resultant reaction output from the reactor (1) being obtained, the resultant reaction output containing at least 2-octyl (meth)acrylate, 2-octanol, (meth)acrylic acid, acidic esterification catalyst, cyclohexane, esterification water and polymerisation inhibitor, and the esterification water created during the esterification forming, together with the entrainer cyclohexane, a heterogeneous azeotrope, • evaporating the heterogeneous azeotrope from the liquid reaction mixture of the reactor (1), the evaporation being achieved by the reactor heating element (30), and • separating off the gaseous heterogeneous azeotrope from the reactor (1), the gaseous heterogeneous azeotrope being condensed in a condenser (5) and then fed to a phase separator (6), and the esterification water being separated off as lower phase and the cyclohexane being separated off as upper phase in this phase separator (6).
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公开(公告)号：CA3240124A1
公开(公告)日：2023-06-01
申请号：CA3240124
申请日：2022-11-14
Applicant: BASF SE
Inventor： MISSKE ANDREA , LANG ORTMUND , DECKERT PETRA , DE RUITER CORNELIS HENDRICUS , AKIN AYKAN , KORPJUHN FRANK , FLECKENSTEIN CHRISTOPH , FLEISCHHAKER FRIEDERIKE , EICHHORN SABINE
Abstract: The invention relates to a method for preparing 2-octyl (meth)acrylate by reacting 2-octanol with (meth)acrylic acid in the presence of an acidic esterification catalyst, a polymerisation inhibitor and the entrainer cyclohexane, the method comprising the following steps: providing a reactor unit (24), a reactor (1) with a reactor heating element (30) being located inside the reactor unit (24), feeding 2-octanol (13), (meth)acrylic acid (14), acidic esterification catalyst (15), cyclohexane (17) and polymerisation inhibitor (31) into the reactor (1), performing an esterification in the reactor (1) so as to form a liquid reaction mixture, the esterification taking place in the reactor (1) at a sump temperature in the range from 90 to 130°C and at an absolute pressure in the range of 0.5 to 2.0 bar, and a resultant reaction output from the reactor (1) being obtained, the resultant reaction output containing at least 2-octyl (meth)acrylate, 2-octanol, (meth)acrylic acid, acidic esterification catalyst, cyclohexane, esterification water and polymerisation inhibitor, and the esterification water created during the esterification forming, together with the entrainer cyclohexane, a heterogeneous azeotrope, evaporating the heterogeneous azeotrope from the liquid reaction mixture of the reactor (1), the evaporation being achieved by the reactor heating element (30), and separating off the gaseous heterogeneous azeotrope from the reactor (1), the gaseous heterogeneous azeotrope being condensed in a condenser (5) and then fed to a phase separator (6), and the esterification water being separated off as lower phase and the cyclohexane being separated off as upper phase in this phase separator (6).
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