RU2012144159A - METHOD FOR CLEANING CYCLOHEXANONE - Google Patents
METHOD FOR CLEANING CYCLOHEXANONE Download PDFInfo
- Publication number
- RU2012144159A RU2012144159A RU2012144159/04A RU2012144159A RU2012144159A RU 2012144159 A RU2012144159 A RU 2012144159A RU 2012144159/04 A RU2012144159/04 A RU 2012144159/04A RU 2012144159 A RU2012144159 A RU 2012144159A RU 2012144159 A RU2012144159 A RU 2012144159A
- Authority
- RU
- Russia
- Prior art keywords
- column
- cyclohexanol
- cyclohexanone
- distillate
- cube
- Prior art date
Links
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 title claims abstract 10
- 238000000034 method Methods 0.000 title claims abstract 5
- 238000004140 cleaning Methods 0.000 title 1
- HPXRVTGHNJAIIH-UHFFFAOYSA-N cyclohexanol Chemical compound OC1CCCCC1 HPXRVTGHNJAIIH-UHFFFAOYSA-N 0.000 claims abstract 8
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract 4
- 239000003513 alkali Substances 0.000 claims abstract 4
- 239000012535 impurity Substances 0.000 claims abstract 4
- 239000000203 mixture Substances 0.000 claims abstract 4
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 claims abstract 2
- 238000009835 boiling Methods 0.000 claims abstract 2
- 238000006356 dehydrogenation reaction Methods 0.000 claims abstract 2
- 238000004821 distillation Methods 0.000 claims abstract 2
- 150000002148 esters Chemical class 0.000 claims abstract 2
- 230000003647 oxidation Effects 0.000 claims abstract 2
- 238000007254 oxidation reaction Methods 0.000 claims abstract 2
- 238000010992 reflux Methods 0.000 claims abstract 2
- 238000000926 separation method Methods 0.000 claims abstract 2
- 238000005292 vacuum distillation Methods 0.000 claims abstract 2
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Способ очистки циклогексанона от примесей путем вакуумной ректификации смеси циклогексанола и циклогексанона, полученного окислением циклогексана или дегидрированием циклогексанола, в присутствии щелочи, отличающийся тем, что процесс ведут в разрезной ректификационной колоне (2 колонны), где дистиллят первой колонны является питанием для второй колонны; из куба первой колонны выводят смесь циклогексанола и высококипящих примесей на дальнейшее разделение, а куб второй колонны является флегмой для первой, куда и вводится раствор щелочи в циклогексаноле (КОН) в количестве, эквивалентном содержанию эфиров (эфирному числу) в дистилляте первой колонны.A method of purifying cyclohexanone from impurities by vacuum distillation of a mixture of cyclohexanol and cyclohexanone obtained by oxidation of cyclohexane or dehydrogenation of cyclohexanol in the presence of alkali, characterized in that the process is carried out in a split distillation column (2 columns), where the distillate of the first column is the feed for the second column; a mixture of cyclohexanol and high boiling impurities is removed from the cube of the first column for further separation, and the cube of the second column is reflux for the first, where the alkali solution in cyclohexanol (KOH) is introduced in an amount equivalent to the esters (ether number) in the distillate of the first column.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2012144159/04A RU2523011C2 (en) | 2012-10-16 | 2012-10-16 | Method of cyclohexanone purification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2012144159/04A RU2523011C2 (en) | 2012-10-16 | 2012-10-16 | Method of cyclohexanone purification |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2012144159A true RU2012144159A (en) | 2014-04-27 |
| RU2523011C2 RU2523011C2 (en) | 2014-07-20 |
Family
ID=50515135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2012144159/04A RU2523011C2 (en) | 2012-10-16 | 2012-10-16 | Method of cyclohexanone purification |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU2523011C2 (en) |
-
2012
- 2012-10-16 RU RU2012144159/04A patent/RU2523011C2/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| RU2523011C2 (en) | 2014-07-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20151017 |