Invention Grant
US07319166B2 Method of purifying a raw melt of at least one monomer by crystallization
有权
通过结晶纯化至少一种单体的原料熔体的方法
- Patent Title: Method of purifying a raw melt of at least one monomer by crystallization
- Patent Title (中): 通过结晶纯化至少一种单体的原料熔体的方法
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Application No.: US10476187Application Date: 2002-05-02
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Publication No.: US07319166B2Publication Date: 2008-01-15
- Inventor: Ulrich Hammon , Bernd Eck , Dieter Baumann , Joerg Heilek , Klaus Joachim Mueller-Engel
- Applicant: Ulrich Hammon , Bernd Eck , Dieter Baumann , Joerg Heilek , Klaus Joachim Mueller-Engel
- Applicant Address: DE Ludwigshafen
- Assignee: BASF Aktiengesellschaft
- Current Assignee: BASF Aktiengesellschaft
- Current Assignee Address: DE Ludwigshafen
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
- Priority: DE10122788 20010510
- International Application: PCT/EP02/04783 WO 20020502
- International Announcement: WO02/090310 WO 20021114
- Main IPC: C07C51/43
- IPC: C07C51/43 ; C07D207/00
Abstract:
The invention relates to a method for purifying a raw melt of at least one monomer by crystallization, wherein suspension crystallization is initially used and the resulting remaining melt or the suspension crystals that have been molten once again and separated are subjected to a mechanical separation operation before undergoing subsequent purification by crystallization.
Public/Granted literature
- US20040133015A1 Method of purifying a raw melt of at least one monomer by crystallization Public/Granted day:2004-07-08
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