JPH045663B2 - - Google Patents
Info
- Publication number
- JPH045663B2 JPH045663B2 JP21568484A JP21568484A JPH045663B2 JP H045663 B2 JPH045663 B2 JP H045663B2 JP 21568484 A JP21568484 A JP 21568484A JP 21568484 A JP21568484 A JP 21568484A JP H045663 B2 JPH045663 B2 JP H045663B2
- Authority
- JP
- Japan
- Prior art keywords
- dmac
- mdc
- water
- distillation
- added
- 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.)
- Expired
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 13
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 9
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 claims description 5
- MHABMANUFPZXEB-UHFFFAOYSA-N O-demethyl-aloesaponarin I Natural products O=C1C2=CC=CC(O)=C2C(=O)C2=C1C=C(O)C(C(O)=O)=C2C MHABMANUFPZXEB-UHFFFAOYSA-N 0.000 description 28
- 238000004821 distillation Methods 0.000 description 20
- 239000000203 mixture Substances 0.000 description 11
- 238000010992 reflux Methods 0.000 description 10
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 7
- 229910052801 chlorine Inorganic materials 0.000 description 7
- 239000000460 chlorine Substances 0.000 description 7
- 239000002904 solvent Substances 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000007810 chemical reaction solvent Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000011437 continuous method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003880 polar aprotic solvent Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000001577 simple distillation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013076 target substance Substances 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21568484A JPS6193147A (ja) | 1984-10-15 | 1984-10-15 | Ｎ−ジメチルアセトアミドの精製方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21568484A JPS6193147A (ja) | 1984-10-15 | 1984-10-15 | Ｎ−ジメチルアセトアミドの精製方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6193147A JPS6193147A (ja) | 1986-05-12 |
| JPH045663B2 true JPH045663B2 (enrdf_load_stackoverflow) | 1992-02-03 |
Family
ID=16676443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21568484A Granted JPS6193147A (ja) | 1984-10-15 | 1984-10-15 | Ｎ−ジメチルアセトアミドの精製方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6193147A (enrdf_load_stackoverflow) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5152876A (en) * | 1991-03-27 | 1992-10-06 | Lloyd Berg | Separation of methylene chloride from the lower alcohols by extractive distillation |
| US5051153A (en) * | 1991-05-20 | 1991-09-24 | Lloyd Berg | Separation of methylene chloride from methylal by extractive distillation |
| CN100342986C (zh) * | 2004-12-22 | 2007-10-17 | 哈尔滨工业大学 | 从头孢哌酮钠生产废液中回收二甲基乙酰胺的方法 |
| CN110759832A (zh) * | 2019-11-16 | 2020-02-07 | 安徽金禾实业股份有限公司 | 一种dmac残液回收装置及回收方法 |
-
1984
- 1984-10-15 JP JP21568484A patent/JPS6193147A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6193147A (ja) | 1986-05-12 |
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