发明名称 |
PROCESS AND PLANT FOR THE PURIFICATION OF ACRYLIC ACID |
摘要 |
This invention relates to a process for the purification of acrylic acid from a mixture containing acrylic acid and acetic acid, comprising the following steps: extraction of the mixture containing acrylic acid and acetic acid with an extractant stream, whereby a raffinate stream and an extract stream are obtained, distillation of the extract stream, whereby an acrylic acid stream and a return stream are obtained, wherein the return stream contains acetic acid and is recirculated into the extraction.;Furthermore, the invention may include a plant for carrying out this process. |
申请公布号 |
US2017113994(A1) |
申请公布日期 |
2017.04.27 |
申请号 |
US201515317755 |
申请日期 |
2015.06.16 |
申请人 |
L'Air Liquide, Societe Anonyme pour I'Etude el I'Exploitation des Procedes Georges Claude |
发明人 |
GUTERMUTH Thomas;KREICH Markus;CASTILLO-WELTER Frank |
分类号 |
C07C51/48;B01D3/14;B01D11/04;C07C51/44 |
主分类号 |
C07C51/48 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
Paris FR |