公开(公告)号：US09162962B2

公开(公告)日：2015-10-20

申请号：US14342116

申请日：2011-09-16

申请人： Henning Schaefer ,  Torsten Balduf ,  Patrick Peter

发明人： Henning Schaefer ,  Torsten Balduf ,  Patrick Peter

IPC分类号： C07C51/48

CPC分类号： C07C51/48 ,  C07C57/04

摘要： The invention relates to a process for reclaiming methacrylic acid from a high-boiler phase in a heterogeneously catalysed gas phase oxidation of a C4-compound to methacrylic acid comprising the following steps a) Providing a high-boiler phase from a heterogeneously catalysed gas phase oxidation of a C4-compound to methacrylic acid b) Providing an aqueous phase, preferably organically loaded, from a heterogeneously catalysed gas phase oxidation of a C4-compound to methacrylic acid c) Mixing of components a) and b) optionally followed by filtration or centrifugation d) Adding an extraction media to the mixture from c) e) Subjecting the multiple-phase mixture from d) to at least one mixer-settler extraction process f) Recycling the organic phase from the last mixer-settler process back into the C4-process

摘要翻译： 本发明涉及在C4-化合物到甲基丙烯酸的非均相催化气相氧化中从高沸点相回收甲基丙烯酸的方法，包括以下步骤：a）从非均相催化的气相氧化提供高沸点相 的C4-化合物转化为甲基丙烯酸b）从C4-化合物的非均相催化的气相氧化甲基丙烯酸提供优选有机负载的水相c）将组分a）和b）混合，任选地随后过滤或离心 d）从c）e）中将提取介质添加到混合物中e）使多相混合物从d）至至少一种混合器 - 沉降器提取方法进行处理f）将有机相从最后的混合器 - 沉降器处理循环回C4- 处理

公开(公告)号：US20140221687A1

公开(公告)日：2014-08-07

申请号：US14342116

申请日：2011-09-16

申请人： Henning Schaefer ,  Torsten Balduf ,  Patrick Peter

发明人： Henning Schaefer ,  Torsten Balduf ,  Patrick Peter

IPC分类号： C07C51/48

CPC分类号： C07C51/48 ,  C07C57/04

摘要： The invention relates to a process for reclaiming methacrylic acid from a high-boiler phase in a heterogeneously catalysed gas phase oxidation of a C4-compound to methacrylic acid comprising the following steps a) Providing a high-boiler phase from a heterogeneously catalysed gas phase oxidation of a C4-compound to methacrylic acid b) Providing an aqueous phase, preferably organically loaded, from a heterogeneously catalysed gas phase oxidation of a C4-compound to methacrylic acid c) Mixing of components a) and b) optionally followed by filtration or centrifugation d) Adding an extraction media to the mixture from c) e) Subjecting the multiple-phase mixture from d) to at least one mixer-settler extraction process f) Recycling the organic phase from the last mixer-settler process back into the C4-process.

摘要翻译： 本发明涉及在C4-化合物到甲基丙烯酸的非均相催化气相氧化中从高沸点相回收甲基丙烯酸的方法，包括以下步骤：a）从非均相催化的气相氧化提供高沸点相 的C4-化合物转化为甲基丙烯酸b）从C4-化合物的非均相催化的气相氧化甲基丙烯酸提供优选有机负载的水相c）将组分a）和b）混合，任选地随后过滤或离心 d）从c）e）中将提取介质添加到混合物中e）使多相混合物从d）至至少一种混合器 - 沉降器提取方法进行处理f）将有机相从最后的混合器 - 沉降器处理循环回C4- 处理。