RU99109981A - Удаление перманганат-восстанавливающих соединений и алкилиодидов из потока процесса карбонилирования - Google Patents
Удаление перманганат-восстанавливающих соединений и алкилиодидов из потока процесса карбонилированияInfo
- Publication number
- RU99109981A RU99109981A RU99109981/04A RU99109981A RU99109981A RU 99109981 A RU99109981 A RU 99109981A RU 99109981/04 A RU99109981/04 A RU 99109981/04A RU 99109981 A RU99109981 A RU 99109981A RU 99109981 A RU99109981 A RU 99109981A
- Authority
- RU
- Russia
- Prior art keywords
- iodide
- acetic acid
- stream
- phase
- pva
- Prior art date
Links
- 238000005810 carbonylation reaction Methods 0.000 title claims 9
- 150000001351 alkyl iodides Chemical class 0.000 title claims 8
- 150000001875 compounds Chemical class 0.000 title claims 2
- 238000000034 method Methods 0.000 title 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-N acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims 39
- OKKJLVBELUTLKV-UHFFFAOYSA-N methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims 18
- IKHGUXGNUITLKF-UHFFFAOYSA-N acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 claims 16
- 239000012071 phase Substances 0.000 claims 16
- KXKVLQRXCPHEJC-UHFFFAOYSA-N Methyl acetate Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 claims 14
- XMBWDFGMSWQBCA-UHFFFAOYSA-M iodide Chemical compound [I-] XMBWDFGMSWQBCA-UHFFFAOYSA-M 0.000 claims 12
- 235000019422 polyvinyl alcohol Nutrition 0.000 claims 10
- 229920002451 polyvinyl alcohol Polymers 0.000 claims 10
- 239000003054 catalyst Substances 0.000 claims 8
- 239000000047 product Substances 0.000 claims 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 8
- 239000000203 mixture Substances 0.000 claims 6
- XBDQKXXYIPTUBI-UHFFFAOYSA-N propionic acid Chemical compound CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 claims 6
- 239000002904 solvent Substances 0.000 claims 5
- IQGZCSXWIRBTRW-ZZXKWVIFSA-N (E)-2-ethylbut-2-enal Chemical compound CC\C(=C/C)C=O IQGZCSXWIRBTRW-ZZXKWVIFSA-N 0.000 claims 4
- MLUCVPSAIODCQM-NSCUHMNNSA-N Crotonaldehyde Chemical compound C\C=C\C=O MLUCVPSAIODCQM-NSCUHMNNSA-N 0.000 claims 4
- ANOOTOPTCJRUPK-UHFFFAOYSA-N 1-iodohexane Chemical compound CCCCCCI ANOOTOPTCJRUPK-UHFFFAOYSA-N 0.000 claims 3
- INQOMBQAUSQDDS-UHFFFAOYSA-N Methyl iodide Chemical compound IC INQOMBQAUSQDDS-UHFFFAOYSA-N 0.000 claims 3
- 239000002184 metal Substances 0.000 claims 3
- NPDODHDPVPPRDJ-UHFFFAOYSA-N permanganate Chemical compound [O-][Mn](=O)(=O)=O NPDODHDPVPPRDJ-UHFFFAOYSA-N 0.000 claims 3
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims 2
- 238000004821 distillation Methods 0.000 claims 2
- 150000004694 iodide salts Chemical class 0.000 claims 2
- 239000007791 liquid phase Substances 0.000 claims 2
- 235000019260 propionic acid Nutrition 0.000 claims 2
- 239000012264 purified product Substances 0.000 claims 2
- 239000012429 reaction media Substances 0.000 claims 2
- ZTQSAGDEMFDKMZ-UHFFFAOYSA-N 1-butanal Chemical compound CCCC=O ZTQSAGDEMFDKMZ-UHFFFAOYSA-N 0.000 claims 1
- BLXSFCHWMBESKV-UHFFFAOYSA-N 1-iodopentane Chemical compound CCCCCI BLXSFCHWMBESKV-UHFFFAOYSA-N 0.000 claims 1
- WLAMNBDJUVNPJU-UHFFFAOYSA-N 2-methylbutyric acid Chemical compound CCC(C)C(O)=O WLAMNBDJUVNPJU-UHFFFAOYSA-N 0.000 claims 1
- HVTICUPFWKNHNG-UHFFFAOYSA-N Ethyl iodide Chemical compound CCI HVTICUPFWKNHNG-UHFFFAOYSA-N 0.000 claims 1
- PVWOIHVRPOBWPI-UHFFFAOYSA-N N-Propyl iodide Chemical compound CCCI PVWOIHVRPOBWPI-UHFFFAOYSA-N 0.000 claims 1
- -1 alkyl iodide compounds Chemical class 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000005755 formation reaction Methods 0.000 claims 1
- 230000002401 inhibitory effect Effects 0.000 claims 1
- 229920000642 polymer Polymers 0.000 claims 1
- 238000006116 polymerization reaction Methods 0.000 claims 1
- NBBJYMSMWIIQGU-UHFFFAOYSA-N propionic aldehyde Chemical compound CCC=O NBBJYMSMWIIQGU-UHFFFAOYSA-N 0.000 claims 1
- 238000004064 recycling Methods 0.000 claims 1
Claims (23)
1. Способ уменьшения и/или удаления перманганат-восстанавливающих соединений (ПВС') и C2-12 алкилиодидных соединений, получаемых при карбонилировании метанола в продукт уксусной кислоты, в котором указанный метанол карбонилируют в подходящей жидкофазной реакционной среде, содержащей катализатор на основе металла группы VIII, органический иодид и промотор катализатора иодидную соль; продукты указанного карбонилирования разделяют на содержащий летучую фазу продукт, и менее летучую фазу, содержащую катализатор на основе группы VIII, уксусную кислоту и иодидный промотор катализатора; указанную фазу продукта перегоняют в дистилляционной колонне с получением очищенного продукта и головной фракции, содержащей органический иодид, метилацетат, воду, уксусную кислоту и непрореагировавший метанол, направляя по крайней мере часть головной фракции (28) в декантатор (16) приемника головной фракции, который разделяет головную фракцию на легкую фазу (30), содержащую уксусную кислоту и воду, и тяжелую фазу, содержащую метилацетат и органический иодид; и рециркулирует тяжелую фазу в реактор карбонилирования, отличающийся тем, что включает (а) направление легкой фазы (30), содержащей уксусную кислоту и воду, в дистиллятор (18), который разделяет смесь на два потока: остаточный поток (1), содержащий воду и уксусную кислоту (38), и поток верхнего погона (2), содержащий метилиодид, метилацетат, метанол, C2-12 алкилиодиды, и ПВС' (36); (b) циркуляцию потока (1) со стадии (а) на дополнительную обработку и в конечном счете назад в реактор, и потока (2) со стадии (а) во второй дистиллятор (22), который предназначен для отгонки ПВС' из смеси; (с) необязательно, направление потока верхнего погона, содержащего ПВС' (52) со стадии (b) в экстрактор (27) для удаления из него органических иодидных соединений; и (d) выделение концентрированных ПВС' для удаления (52) и возвращение органической иодидной фазы (44 или 66) из (b) (44) или (с) (66) в виде потока, содержащего низкий процент ПВС' и C2-12 алкилиодидов, в реактор карбонилирования.
2. Способ по п. 1, в котором ПВС'/смесь с отогнанным алкилиодидом со стадии (b) (52) направляют в экстрактор 27 для удаления органических иодидных соединений.
3. Способ по п.1, в котором ПВС' включают ацетальдегид, ацетон, метилэтилкетон, бутиральдегид, кротональдегид, 2-этилкротональдегид и пропионовую кислоту.
4. Способ по п.3, в котором ПВС' удаляют по крайней мере на 50%.
5. Способ по п.4, в котором П ПВС' удаляют по крайней мере на 60%.
6. Способ по п.3, в котором ацетальдегид удаляют по крайней мере на 50%.
7. Способ по п.2, в котором кротональдегид и 2-этилкротональдегид удаляют по крайней мере примерно на 50%.
8. Способ по п.7, в котором кротональдегид и 2-этилкротональдегид удаляют по крайней мере примерно на 75%.
9. Способ по п.8, в котором кротональдегид и 2-этилкротональдегид удаляют примерно на 100%.
10. Способ по п.1, в котором C2-12 алкилиодиды включают этилиодид, пропилиодид, пентилиодид и гексилиодид.
11. Способ по п. 10, в котором алкилиодиды удаляют по крайней мере примерно на 50%.
12. Способ по п.11, в котором алкилиодиды удаляют по крайней мере примерно на 60%.
13. Способ по п.10, в котором гексилиодид удаляют по крайней мере примерно на 50%.
14. Способ по п.13, в котором гексилиодид удаляют по крайней мере примерно на 70%.
15. Способ по п. 1, в котором перманганатный период, основанный на испытании перманганатного времени, увеличивается по крайней мере примерно на 50%.
16. Способ по п. 15, в котором перманганатный период увеличивается по крайней мере примерно на 70%.
17. Способ по п.3, в котором пропионовая кислота уменьшается примерно на 20%.
18. Способ по п.17, в котором пропионовая кислота уменьшается примерно на 30%.
19. Способ ингибирования полимеризации ацетальдегида в колонне во время остановки указанной колонны, применяемой при карбонилировании метанола в продукт уксусной кислоты, в котором указанный метанол карбонилируют в подходящей жидкофазной реакционной среде, содержащей катализатор на основе металла группы VIII, органический иодид и промотора катализатора иодидную соль; продукты указанного карбонилирования разделяют на содержащий летучую фазу продукт, и менее летучую фазу, содержащую катализатор на основе металла группы VIII, уксусную кислоту и иодидный промотор катализатора; указанную фазу продукта перегоняют в дистилляционной колонне с получением очищенного продукта и головной фракции, содержащей органический иодид, метилацетат, воду, уксусную кислоту и непрореагировавший метанол, направляя по крайней мере часть головной фракции в декантатор (16) приемника головной фракции, который разделяет головную фракцию на легкую фазу (30), содержащую уксусную кислоту и воду, и тяжелую фазу, содержащую метилацетат и органической иодид; и рециркулируя указанную тяжелую фазу в реактор карбонилирования, отличающийся тем, что включает (а) направление легкой фазы (30) в дистиллятор (18), который разделяет смесь на два потока: остаточный поток (1), содержащий воду и уксусную кислоту (38), и поток верхнего погона (2), содержащий метилиодид, метилацетат, метанол, C2-12 алкилиодиды, и ацетальдегид (36); (b) циркуляцию потока (1) со стадии (а) назад в реактор, и потока (2) со стадии (а) во второй дистиллятор (22), который предназначен для отгонки ацетальдегида из смеси; (с) контактировании потока (2) стадии (b) с потоком, имеющим растворитель, выбранный из группы уксусной кислоты, метилацетата, метанола, воды, метилиодида, ацетальдегида или их смесей, в количестве, достаточном для того, чтобы предотвратить образование полимеров ацетальдегида; и (d) выделение концентрированного ацетальдегида (52) и возвращение органической иодидной фазы (44) в реактор карбонилирования.
20. Способ по п.19, в котором растворителем, главным образом, является уксусная кислота.
21. Способ по п.19, в котором растворитель контактирует с потоком 2b при скорости примерно 0,95-18,9 л/мин (0,25-5 гал/мин).
22. Способ по п. 21, в котором растворитель контактирует при скорости примерно 1,89-7,57 л/мин (0,5-2 гал/мин).
23. Способ по п.21, в котором растворитель контактирует с потоком 2b в основании колонны.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US73536196A | 1996-10-18 | 1996-10-18 | |
US08/735,361 | 1996-10-18 |
Publications (2)
Publication Number | Publication Date |
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RU99109981A true RU99109981A (ru) | 2001-03-20 |
RU2181715C2 RU2181715C2 (ru) | 2002-04-27 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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RU99109981/04A RU2181715C2 (ru) | 1996-10-18 | 1997-10-17 | Способ уменьшения и/или удаления перманганатвосстанавливающих соединений и с2-12 алкилиодидных соединений |
Country Status (27)
Country | Link |
---|---|
US (1) | US6143930A (ru) |
EP (1) | EP0934243B1 (ru) |
JP (2) | JP4681088B2 (ru) |
KR (1) | KR100495554B1 (ru) |
CN (2) | CN1264801C (ru) |
AR (1) | AR008670A1 (ru) |
AT (1) | ATE247620T1 (ru) |
AU (1) | AU730800B2 (ru) |
BR (1) | BR9712325C1 (ru) |
CA (1) | CA2267887C (ru) |
CZ (1) | CZ299598B6 (ru) |
DE (1) | DE69724266T2 (ru) |
DK (1) | DK0934243T3 (ru) |
ES (1) | ES2205197T3 (ru) |
HU (1) | HUP0000457A3 (ru) |
ID (1) | ID21867A (ru) |
IN (1) | IN192600B (ru) |
MY (1) | MY124684A (ru) |
NZ (1) | NZ334936A (ru) |
PL (1) | PL189501B1 (ru) |
RS (1) | RS49538B (ru) |
RU (1) | RU2181715C2 (ru) |
SA (1) | SA97180510B1 (ru) |
TW (1) | TW430647B (ru) |
UA (1) | UA64723C2 (ru) |
WO (1) | WO1998017619A2 (ru) |
ZA (1) | ZA979228B (ru) |
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