发明名称 |
PURIFICATION OF BIO-BASED ACRYLIC ACID TO CRUDE AND GLACIAL ACRYLIC ACID |
摘要 |
Processes for the purification of bio-based acrylic acid to crude and glacial acrylic acid are provided. The bio-based acrylic acid is produced from hydroxypropionic acid, hydroxypropionic acid derivatives, or mixtures thereof. The purification includes some or all of the following processes: extraction, drying, distillation, and melt crystallization. The produced glacial or crude acrylic acid contains hydroxypropionic, hydroxypropionic acid derivatives, or mixtures thereof as an impurity. |
申请公布号 |
EP2836475(A2) |
申请公布日期 |
2015.02.18 |
申请号 |
EP20130721435 |
申请日期 |
2013.04.11 |
申请人 |
THE PROCTER & GAMBLE COMPANY |
发明人 |
GODLEWSKI, JANE, ELLEN;LINGOES, JANETTE, VILLALOBOS;VELASQUEZ, JUAN, ESTEBAN;COLLIAS, DIMITRIS, IOANNIS |
分类号 |
C07C51/377 |
主分类号 |
C07C51/377 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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