发明名称 |
METHOD FOR PRODUCING (METH)ACRYLIC ACID AND CRYSTALLIZATION SYSTEM |
摘要 |
Provided is a method for producing (meth)acrylic acid, which comprises a step for feeding a cooling medium from a heat source (4A) to a crystallization unit (1) and crystallizing (meth)acrylic acid from a crude (meth)acrylic acid solution; a step for discharging the cooling medium from the crystallization unit (1) and returning said cooling medium to the heat source (4A); a step for feeding heating medium from a heat source (4B) to the crystallization unit (1) and melting the (meth)acrylic acid; and a step for discharging the heating medium from the crystallization unit (1) and returning said heating medium to the heat source (4B). The temperature of the cooling medium returned to the heat source (4A) is maintained within a fixed range using a first buffer tank (5), and the temperature of the heating medium returned to the heat source (4B) is maintained within a fixed range using a second buffer tank (6). |
申请公布号 |
WO2010131603(A1) |
申请公布日期 |
2010.11.18 |
申请号 |
WO2010JP57808 |
申请日期 |
2010.05.07 |
申请人 |
NIPPON SHOKUBAI CO., LTD.;SUGIMOTO, TAKASHI |
发明人 |
SUGIMOTO, TAKASHI |
分类号 |
C07C51/43;B01D9/02;C07C57/07 |
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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