发明名称 |
Crystallization method |
摘要 |
<p>In a crystallization method, a liquid mixture containing a crystallizable component is cooled so as to form and separate crystals of the crystallizable component. Then, a purified melt having purity substantially equal to that of the separated crystals, to which a polymerization inhibitor is added and which is heated to a temperature higher than a freezing point of the separated crystals, is circulated to flow contacting the crystals so as to accelerate melting. Then, the melted crystals are recovered along with the purified melt containing the polymerization inhibitor. <IMAGE></p> |
申请公布号 |
EP0776875(A1) |
申请公布日期 |
1997.06.04 |
申请号 |
EP19960119088 |
申请日期 |
1996.11.28 |
申请人 |
JGC CORPORATION;MITSUBISHI CHEMICAL CORPORATION |
发明人 |
UMINO, HIROSHI;SHIBUYA, HIROMITSU;CHIKAMATSU, NOBUYASU;KIKUCHI, KAZUO;YAMAGISHI, MASAHIKO;TAKAHASHI, KIYOSHI |
分类号 |
B01D9/02;B01D9/00;C07B63/04;C07C51/43;C07C57/07;(IPC1-7):C07B63/04;C07C57/04;C07C51/50 |
主分类号 |
B01D9/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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