Shigeho
Shigeho Inatsune, Tokyo JP
Shigeho Tanaka, Hiroshima-Ken JP
Patent application number | Description | Published |
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20100228053 | METHOD FOR EXTRACTING METHACRYLIC ACID - Disclosed is a method for extracting methacrylic acid, in which an extraction solvent is added to a methacrylic acid aqueous solution for transferring methacrylic acid to the extraction solvent. In this method, a solvent containing t-butyl methacrylate is used as the extraction solvent. | 09-09-2010 |
Shigeho Tanaka, Otake-Shi JP
Patent application number | Description | Published |
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20090253945 | METHOD FOR PRODUCING TERTIARY BUTYL ALCOHOL - Disclosed is a method for producing tertiary butyl alcohol through hydration reaction of isobutylene and water in the presence of a cation exchange resin by using a reactor having at least two reactor vessels provided in series. The method is characterized in that a fluid in a reactor vessel at the most downstream side forms a two-liquid phase and the reaction temperature of the reactor vessel is kept at 70° C. or lower, and a fluid in at least one reactor vessel other than the one at the most downstream side forms a homogeneous phase. | 10-08-2009 |