Title:
ジメチルスルホキシド(DMSO)の精製法
Document Type and Number:
Japanese Patent JP4187306
Kind Code:
B2
Abstract:
Dimethyl sulphoxide (DMSO) is purified to decrease its content of alkali(ne earth) and/or other metal cations by treating it with at least two cation exchange resins. At least one of the resins is of the sulphonic type (in acidic or ammonium form) and the other(s) are of the chelating type. Also claimed is purified DMSO obtained by this process.
Inventors:
Annie Comalieu
Francis Umbro
Francis Umbro
Application Number:
JP13350098A
Publication Date:
November 26, 2008
Filing Date:
May 15, 1998
Export Citation:
Assignee:
Elf Aquitaine Explosion Prode Yucion France
International Classes:
C07C317/04; B01J39/04; G01N21/73; B01J45/00; C07C315/06
Domestic Patent References:
| JP9012534A | ||||
| JP63270659A | ||||
| JP3175942B2 | ||||
| JP7118223A | ||||
| JP48057917A |
Attorney, Agent or Firm:
Yoshio Kawaguchi
Naoya Fushimi
Naoya Fushimi