AR112596A1 - PROCEDURE TO PRODUCE ACETIC ACID - Google Patents
PROCEDURE TO PRODUCE ACETIC ACIDInfo
- Publication number
- AR112596A1 AR112596A1 ARP180100275A AR112596A1 AR 112596 A1 AR112596 A1 AR 112596A1 AR P180100275 A ARP180100275 A AR P180100275A AR 112596 A1 AR112596 A1 AR 112596A1
- Authority
- AR
- Argentina
- Prior art keywords
- acetic acid
- stream rich
- section
- rich
- phase
- Prior art date
Links
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 title abstract 21
- 238000000034 method Methods 0.000 title abstract 9
- 239000012071 phase Substances 0.000 abstract 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract 3
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 abstract 2
- 238000010521 absorption reaction Methods 0.000 abstract 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 2
- 238000004821 distillation Methods 0.000 abstract 2
- 239000007789 gas Substances 0.000 abstract 2
- 229910052760 oxygen Inorganic materials 0.000 abstract 2
- 239000001301 oxygen Substances 0.000 abstract 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000009835 boiling Methods 0.000 abstract 1
- 229910002091 carbon monoxide Inorganic materials 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- INQOMBQAUSQDDS-UHFFFAOYSA-N iodomethane Chemical compound IC INQOMBQAUSQDDS-UHFFFAOYSA-N 0.000 abstract 1
- 239000007791 liquid phase Substances 0.000 abstract 1
- 239000011541 reaction mixture Substances 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Un proceso para producir ácido acético comprende un proceso que comprende: (1) carbonilar metanol; (2) separar la mezcla de reacción en una fase volátil y una fase menos volátil; (3) destilar la fase volátil para formar una primera cabeza de destilación rica en un componente en ebullición inferior y una corriente de ácido acético rica en ácido acético; y por lo menos un grupo de pasos seleccionado del grupo que consiste en las siguientes secciones (4), (9), y (15): (4) una sección para separar impurezas de la corriente de ácido acético para dar el ácido acético purificado, (9) una sección para separar la primera cabeza de destilación en una corriente rica en acetaldehído y una corriente rica en yoduro de metilo, y (15) una sección para tratamiento por absorción de un gas de escape del proceso con un solvente de absorción y formar una corriente rica en monóxido de carbono y una corriente rica en ácido acético; en este proceso, la concentración de oxígeno en una fase gaseosa del proceso se controla a menos de 7% en volumen y/o la concentración de oxígeno en una fase líquida del proceso se controla a menos de 7 ´ 10⁻⁵ g/g, y se reduce la formación de yoduro; el proceso reduce o previene efectivamente la corrosión local de una pared interior de una unidad y/o línea del proceso.A process for producing acetic acid comprises a process comprising: (1) carbonylating methanol; (2) separating the reaction mixture into a volatile phase and a less volatile phase; (3) distilling the volatile phase to form a first distillation head rich in a lower boiling component and an acetic acid stream rich in acetic acid; and at least one group of steps selected from the group consisting of the following sections (4), (9), and (15): (4) a section for removing impurities from the acetic acid stream to give the purified acetic acid , (9) a section for separating the first distillation head into a stream rich in acetaldehyde and a stream rich in methyl iodide, and (15) a section for treatment by absorption of a process exhaust gas with an absorption solvent and forming a stream rich in carbon monoxide and a stream rich in acetic acid; in this process, the oxygen concentration in a gas phase of the process is controlled to less than 7% by volume and / or the oxygen concentration in a liquid phase of the process is controlled to less than 7 ´ 10⁻⁵ g / g, and the formation of iodide is reduced; the process effectively reduces or prevents local corrosion of an interior wall of a unit and / or process line.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017020775 | 2017-02-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AR112596A1 true AR112596A1 (en) | 2019-11-20 |
Family
ID=68732083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ARP180100275 AR112596A1 (en) | 2017-02-07 | 2018-02-06 | PROCEDURE TO PRODUCE ACETIC ACID |
Country Status (1)
| Country | Link |
|---|---|
| AR (1) | AR112596A1 (en) |
-
2018
- 2018-02-06 AR ARP180100275 patent/AR112596A1/en unknown
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FB | Suspension of granting procedure |