发明名称 |
PROCESS FOR PRODUCING AROMATIC CARBONATE ON INDUSTRIAL SCALE |
摘要 |
It is an object of the present invention to provide a specific process that enables aromatic carbonates to be produced with high selectivity and high productivity stably for a prolonged period of time on an industrial scale of not less than 1 ton per hour from a dialkyl carbonate and an aromatic monohydroxy compound using two continuous multi-stage distillation columns. Although there have been various proposals regarding processes for the production of aromatic carbonates by means of a reactive distillation method, these have all been on a small scale and short operating time laboratory level, and there have been no disclosures whatsoever on a specific process or apparatus enabling mass production on an industrial scale. According to the present invention, there are provided two specified continuous multi-stage distillation columns, and there is also provided a specific process that enables aromatic carbonates to be produced with high selectivity and high productivity stably for a prolonged period of time on an industrial scale of not less than 1 ton per hour from a dialkyl carbonate and an aromatic monohydroxy compound using a apparatus in which these two continuous multi-stage distillation columns are connected together. |
申请公布号 |
EP1767518(A4) |
申请公布日期 |
2008.08.20 |
申请号 |
EP20050765686 |
申请日期 |
2005.07.12 |
申请人 |
ASAHI KASEI CHEMICALS CORPORATION |
发明人 |
FUKUOKA, SHINSUKE;HACHIYA, HIROSHI;MATSUZAKI, KAZUHIKO |
分类号 |
C07C68/06;B01D3/00;C07B61/00;C07C68/08;C07C69/96 |
主分类号 |
C07C68/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|