专利名称：Process for purification of (meth)acrylic acid发明人：Seiji Miyazaki,Akira Ogawa,Yasutaka
Nakashima,Yoshiaki Kobayashi,MikiyoshiAraki
申请号：US09463664申请日：20000128公开号：US06380427B1公开日：20020430
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.
代理机构：Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
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