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专利名称：PROCESS FOR THE PURIFICATION OF
(METH)ACRYLIC ACID
发明人：MIYAZAKI, SEIJI,OGAWA,
AKIRA,NAKASHIMA, YASUTAKA,KOBAYASHI,YOSHIAKI,ARAKI, MIKIYOSHI
申请号：EP935268申请日：19980729公开号：EP1002787A4公开日：20000927
摘要：A process for purification of (meth)acrylic acid which comprises adding to acrude (meth)acrylic acid one or two or more polar organic substances as a secondcomponent at a concentration of 1-35% by weight, crystallizing (meth)acrylic acid fromthe resulting (meth)acrylic acid solution, and separating the precipitated crystal of(meth)acrylic acid and a mother liquor from each other.
申请人：MITSUBISHI RAYON CO., LTD.
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