Title:
ヒドロキシ芳香族化合物の製造方法
Document Type and Number:
Japanese Patent JP4473395
Kind Code:
B2
Abstract:
A process for producing a hydroxyaromatic compound by oxidizing an alkyl group-substituted aromatic hydrocarbon to a hydroperoxyaromatic compound and decomposing the hydroperoxyaromatic compound to the hydroxyaromatic compound in which the step of neutralizing the reaction mixture containing the hydroxyaromatic compound with an aqueous alkali solution is conducted so that an aqueous layer, which is obtained by mixing an oil layer of the neutralized mixture and deionized water in a volume ratio of the oil layer to the deionized water of 2:1 to obtain an oil/water mixture and allowing the oil/water mixture to stand still, may have a pH falling within the range of from 4.5 to 5.5, improves the yield of the hydroxyaromatic compound product while suppressing by-production of heavy substances.
Inventors:
Tomoyuki Noritake
Application Number:
JP2000040767A
Publication Date:
June 02, 2010
Filing Date:
February 18, 2000
Export Citation:
Assignee:
Sumitomo Chemical Co., Ltd.
International Classes:
B01J27/02; C07C37/08; C07B61/00; C07C37/74; C07C39/04; C07C39/08; C07C39/10
Domestic Patent References:
| JP3616722B1 | ||||
| JP9143112A |
Foreign References:
| US2789142 |
Attorney, Agent or Firm:
Toru Nakayama