RU2008147461A - METHOD FOR PRODUCING DI- (β-CHLORETHYL) FORMAL - Google Patents
METHOD FOR PRODUCING DI- (β-CHLORETHYL) FORMAL Download PDFInfo
- Publication number
- RU2008147461A RU2008147461A RU2008147461/04A RU2008147461A RU2008147461A RU 2008147461 A RU2008147461 A RU 2008147461A RU 2008147461/04 A RU2008147461/04 A RU 2008147461/04A RU 2008147461 A RU2008147461 A RU 2008147461A RU 2008147461 A RU2008147461 A RU 2008147461A
- Authority
- RU
- Russia
- Prior art keywords
- dichloroethane
- cube
- distillation
- formaldehyde
- returned
- Prior art date
Links
- -1 β-CHLORETHYL Chemical class 0.000 title claims abstract 3
- 238000004519 manufacturing process Methods 0.000 title 1
- 238000000034 method Methods 0.000 claims abstract 14
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 claims abstract 12
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims abstract 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract 6
- SZIFAVKTNFCBPC-UHFFFAOYSA-N 2-chloroethanol Chemical compound OCCCl SZIFAVKTNFCBPC-UHFFFAOYSA-N 0.000 claims abstract 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract 4
- 238000004821 distillation Methods 0.000 claims abstract 4
- 229910000041 hydrogen chloride Inorganic materials 0.000 claims abstract 4
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 claims abstract 4
- 239000003377 acid catalyst Substances 0.000 claims abstract 2
- 238000010533 azeotropic distillation Methods 0.000 claims abstract 2
- 239000003054 catalyst Substances 0.000 claims abstract 2
- 238000000926 separation method Methods 0.000 claims abstract 2
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1. Способ получения ди-(β-хлорэтил)формаля путем взаимодействия этиленхлоргидрина с формальдегидом в присутствии кислотного катализатора, отличающийся тем, что процесс взаимодействия этиленхлоргидрина с формальдегидом проводят при мольном соотношении (2,25-2,7):1, в качестве катализатора используют сухой хлористый водород с последующей отгонкой реакционной воды в присутствии 1,2-дихлорэтана. ! 2. Способ по п.1, отличающийся тем, что сухой газообразный хлористый водород используют в количестве 0,3-1,0 мас.%. ! 3. Способ по п.1, отличающийся тем, что 1,2-дихлорэтан загружают в куб колонны ректификации полностью. ! 4. Способ по п.1, отличающийся тем, что в куб колонны ректификации загружают сначала не менее трети от общего количества 1,2-дихлорэтана, а остальной 1,2-дихлорэтан дозируют в куб колонны непрерывно в ходе всего процесса отгонки реакционной воды. ! 5. Способ по п.1, отличающийся тем, что отогнанный этиленхлоргидрин возвращают в цикл. ! 6. Способ по п.1, отличающийся тем, что 1,2-дихлорэтан после азеотропной отгонки и последующего отделения от слоя воды возвращают в цикл. 1. The method of producing di- (β-chloroethyl) formal by reacting ethylene chlorohydrin with formaldehyde in the presence of an acid catalyst, characterized in that the reaction of ethylene chlorohydrin with formaldehyde is carried out in a molar ratio of (2.25-2.7): 1, as a catalyst dry hydrogen chloride is used, followed by distillation of the reaction water in the presence of 1,2-dichloroethane. ! 2. The method according to claim 1, characterized in that the dry gaseous hydrogen chloride is used in an amount of 0.3-1.0 wt.%. ! 3. The method according to claim 1, characterized in that 1,2-dichloroethane is fully loaded into the cube of the rectification column. ! 4. The method according to claim 1, characterized in that at least a third of the total amount of 1,2-dichloroethane is first charged into the cube of the rectification column, and the remaining 1,2-dichloroethane is metered into the cube of the column continuously during the entire process of distillation of the reaction water. ! 5. The method according to claim 1, characterized in that the distilled ethylene chloride is returned to the cycle. ! 6. The method according to claim 1, characterized in that 1,2-dichloroethane after azeotropic distillation and subsequent separation from the water layer is returned to the cycle.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2008147461/04A RU2398756C2 (en) | 2008-12-01 | 2008-12-01 | DI-(β-CHLOROETHYL)FORMAL SYNTHESIS METHOD |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2008147461/04A RU2398756C2 (en) | 2008-12-01 | 2008-12-01 | DI-(β-CHLOROETHYL)FORMAL SYNTHESIS METHOD |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2008147461A true RU2008147461A (en) | 2010-06-10 |
| RU2398756C2 RU2398756C2 (en) | 2010-09-10 |
Family
ID=42681172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2008147461/04A RU2398756C2 (en) | 2008-12-01 | 2008-12-01 | DI-(β-CHLOROETHYL)FORMAL SYNTHESIS METHOD |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU2398756C2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2475472C2 (en) * | 2010-08-17 | 2013-02-20 | Евгений Валентинович Пантелеев | Fuel composition |
| RU2522332C1 (en) * | 2013-04-11 | 2014-07-10 | Открытое акционерное общество "Казанский завод синтетического каучука" (ОАО "КЗСК") | Method of producing 2,2'-dichlorodiethylformal |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4613411A (en) * | 1984-06-18 | 1986-09-23 | Sun Refining And Marketing Company | Process for the production and purification of diethoxymethane by azeotropic distillation |
| DE4214847A1 (en) * | 1992-05-05 | 1993-11-11 | Buna Ag | 2,2'-Di:chloro-di:methyl formal prodn. in high purity - by adding para-formaldehyde to excess 2-chloro-ethanol and distn., useful in high grade liquid polysulphide prodn. |
| DE19601281A1 (en) * | 1996-01-16 | 1997-07-17 | Buna Sow Leuna Olefinverb Gmbh | High yield and high purity bis-2-chloro-ethoxy-methane preparation |
-
2008
- 2008-12-01 RU RU2008147461/04A patent/RU2398756C2/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| RU2398756C2 (en) | 2010-09-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20141202 |