Invention Grant
- Patent Title: Method for purifying 1,4-diaminobutane
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Application No.: US15572381Application Date: 2016-05-04
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Publication No.: US10450262B2Publication Date: 2019-10-22
- Inventor: Won Sik Gwak , Hong Xian Li , Hyun Ju Won , Hyo Hyoung Lee , Kyung Su Na , Su Jin Park , Young Lyeol Yang , Hye Won Um , Chang Yub Oh , Kyoung Min Lee
- Applicant: CJ CHEILJEDANG CORPORATION
- Applicant Address: KR Jung-Gu, Seoul
- Assignee: CJ CHEILJEDANG CORPORATION
- Current Assignee: CJ CHEILJEDANG CORPORATION
- Current Assignee Address: KR Jung-Gu, Seoul
- Agency: Cantor Colburn LLP
- Priority: KR10-2015-0064622 20150508
- International Application: PCT/KR2016/004686 WO 20160504
- International Announcement: WO2016/182257 WO 20161117
- Main IPC: C07C209/86
- IPC: C07C209/86 ; C07C211/09 ; B01D3/14 ; C07C209/84 ; C12P13/00
Abstract:
A method for purifying 1,4-diaminobutane comprising the steps of: separating a second composition including carbonate salt of 1,4-diaminobutane from a first composition including carbonate salt of 1,4-diaminobutane by distillation; and removing carbonate from carbonate salt of 1,4-diaminobutane included in the second composition to recover 1,4-diaminobutane.
Public/Granted literature
- US20180127351A1 METHOD FOR PURIFYING 1,4-DIAMINOBUTANE Public/Granted day:2018-05-10
Information query
