IE33328B1 - Process for the preparation of dimethyl sulphoxide - Google Patents
Process for the preparation of dimethyl sulphoxideInfo
- Publication number
- IE33328B1 IE33328B1 IE1162/69A IE116269A IE33328B1 IE 33328 B1 IE33328 B1 IE 33328B1 IE 1162/69 A IE1162/69 A IE 1162/69A IE 116269 A IE116269 A IE 116269A IE 33328 B1 IE33328 B1 IE 33328B1
- Authority
- IE
- Ireland
- Prior art keywords
- dimethyl sulphoxide
- cell
- dimethyl
- carried out
- electrolytes
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B3/00—Electrolytic production of organic compounds
- C25B3/20—Processes
- C25B3/23—Oxidation
Abstract
1275309 Dimethyl sulphoxide GLANZSTOFF AG 11 Aug 1969 [27 Sept 1968] 40001/69 Heading C2C [Also in Divisions C6-C7] In a process for the preparation of dimethyl sulphoxide by anodic oxidation of dimethyl sulphide in a cell containing dimethyl sulphide, dimethyl sulphoxide, water and one or more electrolytes, e.g. sulphuric acid, hydrochloric acid or sodium hydroxide, the contents of the cell being maintained in practically constant concentration by continuously introducing dimethyl sulphide, water and the electrolyte or the electrolytes into the cell whilst continuously removing a portion of the electrolyte from the cell for recovery of the dimethyl sulphoxide therefrom. The process may be carried out at normal or subatmospheric pressure but is prefer. ably carried out at an excess pressure of 1-50 atmospheres. The mixture is preferably in the form of an homogenous phase; mixing being carried out by stirring or by a circulating pump. Cooling devices may be provided. The electrodes may be of plate, perforated plate, cylinder or rod form, and may be of platinum, platinized titanium, lead, hammer scale or graphite; e.g. a platinized titanium anode may be used with a graphite cathode.
[GB1275309A]
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1793505A DE1793505C3 (en) | 1968-09-27 | 1968-09-27 | Process for the production of dimethyl sulfoxide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE33328L IE33328L (en) | 1970-03-27 |
| IE33328B1 true IE33328B1 (en) | 1974-05-29 |
Family
ID=5707732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE1162/69A IE33328B1 (en) | 1968-09-27 | 1969-08-15 | Process for the preparation of dimethyl sulphoxide |
Country Status (12)
| Country | Link |
|---|---|
| AT (1) | AT291211B (en) |
| BE (1) | BE737576A (en) |
| CA (1) | CA921862A (en) |
| CH (1) | CH507919A (en) |
| DE (1) | DE1793505C3 (en) |
| ES (1) | ES371345A1 (en) |
| FR (1) | FR2022203A1 (en) |
| GB (1) | GB1275309A (en) |
| HU (1) | HU163542B (en) |
| IE (1) | IE33328B1 (en) |
| LU (1) | LU59417A1 (en) |
| NL (1) | NL6913185A (en) |
-
1968
- 1968-09-27 DE DE1793505A patent/DE1793505C3/en not_active Expired
-
1969
- 1969-08-11 GB GB40001/69A patent/GB1275309A/en not_active Expired
- 1969-08-15 IE IE1162/69A patent/IE33328B1/en unknown
- 1969-08-18 BE BE737576D patent/BE737576A/xx unknown
- 1969-08-21 CA CA060174A patent/CA921862A/en not_active Expired
- 1969-08-22 CH CH1275669A patent/CH507919A/en not_active IP Right Cessation
- 1969-08-25 AT AT813669A patent/AT291211B/en not_active IP Right Cessation
- 1969-08-28 NL NL6913185A patent/NL6913185A/xx unknown
- 1969-09-08 ES ES371345A patent/ES371345A1/en not_active Expired
- 1969-09-09 LU LU59417D patent/LU59417A1/xx unknown
- 1969-09-24 HU HUGA974A patent/HU163542B/hu unknown
- 1969-09-26 FR FR6932999A patent/FR2022203A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| HU163542B (en) | 1973-09-27 |
| CH507919A (en) | 1971-05-31 |
| NL6913185A (en) | 1970-04-01 |
| LU59417A1 (en) | 1970-01-08 |
| IE33328L (en) | 1970-03-27 |
| BE737576A (en) | 1970-02-02 |
| DE1793505B2 (en) | 1974-03-07 |
| CA921862A (en) | 1973-02-27 |
| GB1275309A (en) | 1972-05-24 |
| DE1793505A1 (en) | 1972-02-03 |
| AT291211B (en) | 1971-07-12 |
| DE1793505C3 (en) | 1974-11-07 |
| FR2022203A1 (en) | 1970-07-31 |
| ES371345A1 (en) | 1971-10-16 |
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