RU2006134637A - Способ получения уксусной кислоты - Google Patents
Способ получения уксусной кислоты Download PDFInfo
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- RU2006134637A RU2006134637A RU2006134637/04A RU2006134637A RU2006134637A RU 2006134637 A RU2006134637 A RU 2006134637A RU 2006134637/04 A RU2006134637/04 A RU 2006134637/04A RU 2006134637 A RU2006134637 A RU 2006134637A RU 2006134637 A RU2006134637 A RU 2006134637A
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- dimethyl ether
- acetic acid
- overhead
- phase
- methyl iodide
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/10—Preparation of carboxylic acids or their salts, halides or anhydrides by reaction with carbon monoxide
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/10—Preparation of carboxylic acids or their salts, halides or anhydrides by reaction with carbon monoxide
- C07C51/12—Preparation of carboxylic acids or their salts, halides or anhydrides by reaction with carbon monoxide on an oxygen-containing group in organic compounds, e.g. alcohols
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
- C07C51/44—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
1. Способ получения уксусной кислоты, включающий следующие стадии:(a) взаимодействие монооксида углерода, по меньшей мере, с одним реагентом, выбранным из группы, состоящей из метанола, метилацетата, метилформиата и диметилового эфира и их смеси в реакционной среде, содержащей воду, йодистый метил и катализатор для получения реакционного продукта, содержащего уксусную кислоту; (b) осуществление газожидкостного разделения указанного реакционного продукта для получения легкоиспаряющейся фазы, содержащей уксусную кислоту, воду и йодистый метил, и менее легкоиспаряющейся фазы; (c) перегонку указанной легкоиспаряющейся фазы для получения очищенного продукта уксусной кислоты и первого верхнего погона, содержащего воду, метилацетат и йодистый метил; (d) фазовое разделение указанного первого верхнего погона для получения первой жидкой фазы, содержащей воду, и второй жидкой фазы, содержащей йодистый метил; и(e) добавление диметилового эфира в технологическом процессе в количестве, эффективном для увеличения разделения первого верхнего погона для образования первой и второй жидких фаз.2. Способ по п.1, в котором диметиловый эфир добавляют к, по меньшей мере, одному указанному реакционному продукту, указанной легкоиспаряющейся фазе, указанному первому верхнему погону, или потоку, или колонне, связанной с указанной дистилляцией.3. Способ по п.2, в котором диметиловый эфир добавляют к указанному первому верхнему погону.4. Способ по п.1, далее включающий стадию удаления ацетальдегида, по меньшей мере, от одной из указанных первой и второй жидких фаз, и в котором диметиловый эфир добавляют к потоку, связанному со стадией удале�
Claims (14)
1. Способ получения уксусной кислоты, включающий следующие стадии:
(a) взаимодействие монооксида углерода, по меньшей мере, с одним реагентом, выбранным из группы, состоящей из метанола, метилацетата, метилформиата и диметилового эфира и их смеси в реакционной среде, содержащей воду, йодистый метил и катализатор для получения реакционного продукта, содержащего уксусную кислоту; (b) осуществление газожидкостного разделения указанного реакционного продукта для получения легкоиспаряющейся фазы, содержащей уксусную кислоту, воду и йодистый метил, и менее легкоиспаряющейся фазы; (c) перегонку указанной легкоиспаряющейся фазы для получения очищенного продукта уксусной кислоты и первого верхнего погона, содержащего воду, метилацетат и йодистый метил; (d) фазовое разделение указанного первого верхнего погона для получения первой жидкой фазы, содержащей воду, и второй жидкой фазы, содержащей йодистый метил; и
(e) добавление диметилового эфира в технологическом процессе в количестве, эффективном для увеличения разделения первого верхнего погона для образования первой и второй жидких фаз.
2. Способ по п.1, в котором диметиловый эфир добавляют к, по меньшей мере, одному указанному реакционному продукту, указанной легкоиспаряющейся фазе, указанному первому верхнему погону, или потоку, или колонне, связанной с указанной дистилляцией.
3. Способ по п.2, в котором диметиловый эфир добавляют к указанному первому верхнему погону.
4. Способ по п.1, далее включающий стадию удаления ацетальдегида, по меньшей мере, от одной из указанных первой и второй жидких фаз, и в котором диметиловый эфир добавляют к потоку, связанному со стадией удаления ацетальдегида.
5. Способ по п.4, в котором диметиловый эфир добавляют в возвращаемый поток из системы удаления ацетальдегида.
6. Способ по п.4, в котором стадия удаления ацетальдегида включает извлечение ацетальдегида из смеси, включающей в себя йодистый метил, и в котором часть диметилового эфира оказывается эффективной для снижения количества йодистого метила, извлеченного из указанной смеси с ацетальдегидом.
7. Способ по п.1, в котором, по меньшей мере, часть первой жидкой фазы используют в качестве потока флегмы при дистилляции легкоиспаряющейся фазы.
8. Способ по п.1, в котором вторую жидкую фазу рециркулируют для создания части реакционной среды.
9. Способ по п.8, в котором большую часть добавленного диметилового эфира рециркулируют в реакционную среду во второй жидкой фазе.
10. Способ по п.9, в котором, по меньшей мере, часть рециркулированного диметилового эфира преобразуют в уксусную кислоту в реакционной среде.
11. В способе фазового разделения смесь, включающую в себя уксусную кислоту, метилацетат, йодистый метил и воду для получения первой жидкой фазы, включающей в себя воду и метилацетат, и второй жидкой фазы, включающей в себя йодистый метил, предлагаемое улучшение, включающее в себя добавление диметилового эфира к смеси для облегчения такого разделения.
12. Способ для разделения смеси, включающей в себя уксусную кислоту, йодистый метил и воду, для получения очищенного продукта уксусной кислоты, первой жидкой фазы, включающей в себя воду, и второй жидкой фазы, включающей в себя йодистый метил, при этом включающий в себя стадии: дистиллирование смеси для получения фракции верхнего погона и указанного очищенного продукта уксусной кислоты; фазовое разделение фракции верхнего погона для получения указанной первой и второй жидких фаз; дефлегмацию части первой жидкой фазы для дистилляции и добавление диметилового эфира к смеси, к фракции верхнего погона или к части возвращенной флегмы первой жидкой фазы в количестве, эффективном для увеличения фазового разделения первой и второй жидких фаз.
13. Способ по п.12, в котором диметиловый эфир добавляют к фракции верхнего погона.
14. Способ по п.12, в котором смесь создают в виде легкоиспаряющейся фазы реакционного продукта реактора карбонилирования.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/708,423 | 2004-03-02 | ||
US10/708,423 US7208624B2 (en) | 2004-03-02 | 2004-03-02 | Process for producing acetic acid |
Publications (2)
Publication Number | Publication Date |
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RU2006134637A true RU2006134637A (ru) | 2008-04-10 |
RU2358966C2 RU2358966C2 (ru) | 2009-06-20 |
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Application Number | Title | Priority Date | Filing Date |
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RU2006134637/04A RU2358966C2 (ru) | 2004-03-02 | 2005-02-24 | Способ получения уксусной кислоты |
Country Status (21)
Country | Link |
---|---|
US (1) | US7208624B2 (ru) |
EP (1) | EP1723095B8 (ru) |
JP (3) | JP4971128B2 (ru) |
KR (1) | KR101106870B1 (ru) |
CN (1) | CN100448832C (ru) |
AR (1) | AR049473A1 (ru) |
AU (1) | AU2005219828B2 (ru) |
BR (1) | BRPI0508373B1 (ru) |
CA (1) | CA2556966C (ru) |
CL (1) | CL2008003424A1 (ru) |
ES (1) | ES2393194T3 (ru) |
MY (1) | MY141211A (ru) |
NO (1) | NO20064429L (ru) |
NZ (1) | NZ549259A (ru) |
PL (1) | PL208590B1 (ru) |
RS (1) | RS20060493A (ru) |
RU (1) | RU2358966C2 (ru) |
TW (1) | TWI349660B (ru) |
UA (1) | UA84193C2 (ru) |
WO (1) | WO2005085163A1 (ru) |
ZA (1) | ZA200607202B (ru) |
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