基本信息:
- 专利标题： 一种超临界二氧化碳辅助周期性脱挥工艺及装置
- 专利标题（英）：SUPERCRITICAL CARBON DIOXIDE ASSISTED PERIODIC DEVOLATILIZATION PROCESS AND DEVICE
- 申请号：PCT/CN2022/105906 申请日：2022-07-15
- 公开(公告)号：WO2023087756A1 公开(公告)日：2023-05-25
- 发明人： 仇枭逸 , 奚桢浩 , 赵鸣 , 黄剑清 , 王雪松 , 张林 , 李响
- 申请人： 华东理工大学
- 申请人地址： 中国上海市徐汇区梅陇路130号, Shanghai 200237
- 专利权人： 华东理工大学
- 当前专利权人： 华东理工大学
- 当前专利权人地址： 中国上海市徐汇区梅陇路130号, Shanghai 200237
- 代理机构： 苏州翔远专利代理事务所（普通合伙）
- 优先权： CN202111360803.4 2021-11-17
- 主分类号： C08F6/00
- IPC分类号： C08F6/00 ; C08F120/14 ; C08F114/06 ; C08F236/06 ; C08F236/08 ; B01D1/14
Disclosed is a supercritical carbon dioxide assisted periodic devolatilization process. The process comprises a plurality of pressure cycle periods and uses carbon dioxide as a supercritical medium; the pressure is firstly increased and then reduced during the pressure cycle periods, so that the carbon dioxide is converted between a supercritical state and a gaseous state to realize polymer devolatilization. In order to implement devolatilization of a heat-sensitive polymer, the present invention makes use of the principles that the solubility of volatiles in supercritical CO2 is greater than the solubility thereof in the polymer and that periodic pressure is used to promote defoaming; the present invention can efficiently devolatilize at a low temperature with a short devolatilization time, can enable the discharge of materials while devolatilizing, reduces the content of volatiles in the devolatilized polymer to below 50ppm, and is highly efficient.
IPC结构图谱:
| C | 化学；冶金 |
| --C08 | 有机高分子化合物；其制备或化学加工；以其为基料的组合物 |
| ----C08F | 仅用碳—碳不饱和键反应得到的高分子化合物 |
| ------C08F6/00 | 聚合后处理 |