发明名称 |
METHOD FOR PRODUCING (METH)ACRYLIC ACID AND CRYSTALLIZATION SYSTEM |
摘要 |
A process for producing (meth)acrylic acid comprising the steps of: supplying a cooling medium to a crystallizer (1) from a heat source device (4A), thereby crystallizing (meth)acrylic acid from a crude (meth)acrylic acid solution; discharging the cooling medium from the crystallizer (1) and returning the cooling medium to the heat source device (4A); supplying a heating medium to the crystallizer (1) from a heat source device (4B), thereby melting the (meth)acrylic acid; and discharging the heating medium from the crystallizer (1) and returning the heating medium to the heat source device (4B); wherein temperature of the cooling medium returned to the heat source device (4A) is maintained constant by utilizing a first buffer tank (5); and temperature of the heating medium returned to the heat source device (4B) is maintained constant by utilizing a second buffer tank (6). |
申请公布号 |
EP2431350(A4) |
申请公布日期 |
2014.04.23 |
申请号 |
EP20100774860 |
申请日期 |
2010.05.07 |
申请人 |
NIPPON SHOKUBAI CO., LTD. |
发明人 |
SUGIMOTO, TAKASHI |
分类号 |
C07C51/43;B01D9/00;B01D9/02;C07C57/07;F25D17/02 |
主分类号 |
C07C51/43 |
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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