基本信息:
- 专利标题： 폴리락타이드로부터 락타이드 또는 폴리글리콜라이드로부터 글리콜라이드를 회수하는 공정 및 장치
- 专利标题（英）：Process and apparatus for recovering lactide from polylactide or glycolide from polyglycolide
- 专利标题（中）：从多羟基化合物从聚酰胺或甘油中回收柠檬酸的方法和装置
- 申请号：KR1020147007244 申请日：2012-08-17
- 公开(公告)号：KR1020140072051A 公开(公告)日：2014-06-12
- 发明人： 하겐,라이너
- 申请人： 우데 인벤타-피셔 게엠바하
- 申请人地址： Holzhauser Strasse ***-***, ***** Berlin, Germany
- 专利权人： 우데 인벤타-피셔 게엠바하
- 当前专利权人： 우데 인벤타-피셔 게엠바하
- 当前专利权人地址： Holzhauser Strasse ***-***, ***** Berlin, Germany
- 代理人： 특허법인세림
- 优先权： EP110068251 2011-08-19
- 国际申请： PCT/EP2012/066065 2012-08-17
- 国际公布： WO2013026784 2013-02-28
- 主分类号： C08J11/10
- IPC分类号： C08J11/10 ; C08J11/24 ; C08J11/26 ; C08G63/08 ; B01J19/00 ; B01J19/20 ; C07C51/09 ; C07C59/06 ; C07C59/08 ; B29C47/10
The present invention relates to a method for recovering the glycolide from polylactide (PLA) method or poly-glycolide (PGA) for recovering lactide from, in a first step 1 PLA or PGA is carried into contact with the hydrolysis media It is hydrolyzed to oligomers. Locking takes place in the further step the depolymerization cycle (cycling depolymerization) of the oligomer obtained in Step 1 to form a tide or glycolide. In addition, the present invention relates to a device based on a combination of the hydrolysis unit and the depolymerization reactor, and the invention may be performed in this device. The core of the process according to the invention are the partial hydrolysis of the polymer material used for the first time in combination with the rotation depolymerization.
信息查询:
EspacenetIPC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 |
| ----C08J | 加工；配料的一般工艺过程；不包括在C08B，C08C，C08F，C08G或C08H小类中的后处理 |
| ------C08J11/00 | 废料的回收或加工 |
| --------C08J11/04 | .聚合物的 |
| ----------C08J11/10 | ..由聚合物分子链的化学断裂或交联断裂，例如脱硫作用 |