JPS5753457A - Regenerating and utilizing method of dimethyl sulfoxide - Google Patents
Regenerating and utilizing method of dimethyl sulfoxideInfo
- Publication number
- JPS5753457A JPS5753457A JP12860980A JP12860980A JPS5753457A JP S5753457 A JPS5753457 A JP S5753457A JP 12860980 A JP12860980 A JP 12860980A JP 12860980 A JP12860980 A JP 12860980A JP S5753457 A JPS5753457 A JP S5753457A
- Authority
- JP
- Japan
- Prior art keywords
- dimethyl sulfoxide
- cellulose
- solution
- solvent
- paraformaldehyde
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 title abstract 14
- 230000001172 regenerating effect Effects 0.000 title 1
- 229920002678 cellulose Polymers 0.000 abstract 6
- 239000001913 cellulose Substances 0.000 abstract 6
- 239000002904 solvent Substances 0.000 abstract 4
- 229930040373 Paraformaldehyde Natural products 0.000 abstract 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- 229920002866 paraformaldehyde Polymers 0.000 abstract 3
- 239000003513 alkali Substances 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 1
- 230000002378 acidificating effect Effects 0.000 abstract 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 abstract 1
- 238000004090 dissolution Methods 0.000 abstract 1
- 239000000706 filtrate Substances 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 230000003993 interaction Effects 0.000 abstract 1
- 239000002244 precipitate Substances 0.000 abstract 1
- 230000001376 precipitating effect Effects 0.000 abstract 1
- 230000009257 reactivity Effects 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 150000003462 sulfoxides Chemical class 0.000 abstract 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To recover and reutilize separated dimethyl sulfoxide as a solvent for cellulose, by treating a solution, containing the dimethyl sulfoxide, and used as the solvent for the cellulose with an alkali, and distilling the treated solution.
CONSTITUTION: A solution, containing dimethyl sulfoxide, and used as a solvent for cellulose, e.g. a filtrate prepared by dissolving the cellulose in a mixture of dimethyl sulfoxide with paraformaldehyde, precipitating with an alcohol, etc., and filtering off the precipitate, is treated with an alkali, e.g. NaOH, and the resultant treated solution is then distilled to recover the dimethyl sulfoxide. The resultant recovered dimethyl sulfoxide is reutilizable because an acidic substance, e.g. a carboxylic acid, present in the mixture solution of as the solvent for cellulose is inactivated and the strong interaction between the diemethyl sulfoxide and the paraformaldehyde is destroyed without reducing the reactivity of the paraformaldehyde and preventing the dissolution of the cellulose.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12860980A JPS601302B2 (en) | 1980-09-18 | 1980-09-18 | How to reuse dimethyl sulfoxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12860980A JPS601302B2 (en) | 1980-09-18 | 1980-09-18 | How to reuse dimethyl sulfoxide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5753457A true JPS5753457A (en) | 1982-03-30 |
| JPS601302B2 JPS601302B2 (en) | 1985-01-14 |
Family
ID=14989010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12860980A Expired JPS601302B2 (en) | 1980-09-18 | 1980-09-18 | How to reuse dimethyl sulfoxide |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS601302B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018189969A1 (en) | 2017-04-12 | 2018-10-18 | 東レ・ファインケミカル株式会社 | Method for distilling dimethylsulfoxide and multistage distillation column |
-
1980
- 1980-09-18 JP JP12860980A patent/JPS601302B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS601302B2 (en) | 1985-01-14 |
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