Title:
ジヒドロキシベンゼンジスルホン酸金属塩を調製するための方法
Document Type and Number:
Japanese Patent JP2009539928
Kind Code:
A
Abstract:
Metallic dihydroxybenzenedisulfonates are prepared, preferably from alkaline metals, from corresponding dihydroxybenzenedisulfonic acids, by reacting the dihydroxybenzenedisulfonic acid present in a sulfuric medium with an adequate amount of a salt including a sulfate or hydrogenosulfate anion.
Inventors:
De Lily, Michel
Bure, Elbe
Bure, Elbe
Application Number:
JP2009514780A
Publication Date:
November 19, 2009
Filing Date:
June 12, 2007
Export Citation:
Assignee:
Rodia Opera
International Classes:
C07C303/32; C07C309/42
Domestic Patent References:
| JPS6366158A | 1988-03-24 | |||
| JPS58157760A | 1983-09-19 | |||
| JPS6366158A | 1988-03-24 | |||
| JPS58157760A | 1983-09-19 |
Foreign References:
| US3772379A | 1973-11-13 | |||
| US3772379A | 1973-11-13 |
Attorney, Agent or Firm:
Yoshio Kawaguchi
Makoto Ono
Chihiro Watanabe
Kenkyo Kanayama
Katsuma Osaki
Mitsuaki Tsubokura
Makoto Ono
Chihiro Watanabe
Kenkyo Kanayama
Katsuma Osaki
Mitsuaki Tsubokura