JPS5687580A - Separation of trioxane - Google Patents
Separation of trioxaneInfo
- Publication number
- JPS5687580A JPS5687580A JP16544079A JP16544079A JPS5687580A JP S5687580 A JPS5687580 A JP S5687580A JP 16544079 A JP16544079 A JP 16544079A JP 16544079 A JP16544079 A JP 16544079A JP S5687580 A JPS5687580 A JP S5687580A
- Authority
- JP
- Japan
- Prior art keywords
- trioxane
- feedstock
- benzene
- equation
- extract
- 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
Landscapes
- Heterocyclic Compounds That Contain Two Or More Ring Oxygen Atoms (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
PURPOSE: Trioxane resulting from heat distillation of formalin is extracted with benzene and the extract is distilled under specific conditions to give high-purity trioxane with less contents of water and formic acid in high efficiency.
CONSTITUTION: A formaldehyde aqueous solution is heated to give a solution containing trioxane, water and formaldehyde, which is extracted with benzene. The extract is fed to the distillation column to effect continuous distillation so that trioxane is separated wherein the concentration of trioxane in the feedstock X is kept within equation I [R is reflux ratio; γ is a parameter defined by equation II (q is weight ratio of the liquid part in the feedstock; c is concentration in % of trioxane in the feedstock)].
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16544079A JPS5687580A (en) | 1979-12-19 | 1979-12-19 | Separation of trioxane |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16544079A JPS5687580A (en) | 1979-12-19 | 1979-12-19 | Separation of trioxane |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5687580A true JPS5687580A (en) | 1981-07-16 |
JPS6410513B2 JPS6410513B2 (en) | 1989-02-22 |
Family
ID=15812466
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16544079A Granted JPS5687580A (en) | 1979-12-19 | 1979-12-19 | Separation of trioxane |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5687580A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03123777A (en) * | 1989-10-05 | 1991-05-27 | Asahi Chem Ind Co Ltd | Purification of trioxane |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5016239B2 (en) | 2006-03-07 | 2012-09-05 | バンドー化学株式会社 | Transmission belt |
-
1979
- 1979-12-19 JP JP16544079A patent/JPS5687580A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03123777A (en) * | 1989-10-05 | 1991-05-27 | Asahi Chem Ind Co Ltd | Purification of trioxane |
Also Published As
Publication number | Publication date |
---|---|
JPS6410513B2 (en) | 1989-02-22 |
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