发明名称 |
CRYSTALLISATION PROCESS FOR PRODUCING VERY PURE PARA-XYLENE |
摘要 |
The invention is a novel energy efficient process to produce high purity paraxylene from a feed comprising at least 55 to 60 wt% paraxylene, wherein a first portion of high purity paraxylene product is obtained in a first crystallization step at about 10 ~F to about 55 ~F without the need for further reslurry and recrystallization, and wherein another portion of the high purity paraxylene product is obtained following a reslurry step which warms crystalline paraxylene obtained from subsequent lower temperature crystallizations to yield a slurry at a temperature of about 10 ~F to about 55 ~F without the need for further refrigeration. |
申请公布号 |
CA2412029(C) |
申请公布日期 |
2010.04.20 |
申请号 |
CA20012412029 |
申请日期 |
2001.12.19 |
申请人 |
BP CORPORATION NORTH AMERICA INC. |
发明人 |
WILSAK, RICHARD A. |
分类号 |
C07C15/08;C07C7/13;C07C7/14 |
主分类号 |
C07C15/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|