发明名称 |
Process for the continuous manufacture of aryl alkyl carbonate and/or diaryl carbonate using vapor recompression |
摘要 |
In an embodiment, a process for preparing an alkyl aryl carbonate and a diaryl carbonate, comprising: reacting a dialkyl carbonate and an aromatic hydroxy compound in a production column to form the alkyl aryl carbonate and the diaryl carbonate; directing a bottom stream of the production column to a reboiler, wherein the bottom stream comprises the alkyl aryl carbonate and the diaryl carbonate; heating the bottom stream in the reboiler with heat from an overhead stream of the production column to result in a heated bottom stream; directing a first portion of the heated bottom stream back into the production column, wherein the first portion comprises an aromatic hydroxy compound; and collecting the diaryl carbonate and the alkyl aryl carbonate from a second portion of the heated bottom stream. |
申请公布号 |
US9284254(B2) |
申请公布日期 |
2016.03.15 |
申请号 |
US201314031836 |
申请日期 |
2013.09.19 |
申请人 |
SABIC GLOBAL TECHNOLOGIES B.V. |
发明人 |
Nadal Sergio Ferrer;Fernandez Ignacio Vic;Caballero Jose Antonio;Anton Juan Javaloyes |
分类号 |
C07C68/06;C07C68/08 |
主分类号 |
C07C68/06 |
代理机构 |
Cantor Colburn LLP |
代理人 |
Cantor Colburn LLP |
主权项 |
1. A process for preparing an alkyl aryl carbonate and a diaryl carbonate, comprising:
reacting a dialkyl carbonate and an aromatic hydroxy compound in a production column to form the alkyl aryl carbonate and the diaryl carbonate; directing a bottom stream of the production column to a reboiler, wherein the bottom stream comprises the alkyl aryl carbonate and the diaryl carbonate; heating the bottom stream in the reboiler with heat from an overhead stream of the production column to result in a heated bottom stream; directing a first portion of the heated bottom stream back into the production column, wherein the first portion comprises the aromatic hydroxy compound; and collecting the diaryl carbonate and the alkyl aryl carbonate from a second portion of the heated bottom stream. |
地址 |
NL |