AR026296A1 - A PROCESS FOR THE PURIFICATION OF ACID OBTAINED BY THE OXIDATION OF THE GASEOUS SUBSTRATE OF PROPYLENE AND / OR ACROLEIN - Google Patents
A PROCESS FOR THE PURIFICATION OF ACID OBTAINED BY THE OXIDATION OF THE GASEOUS SUBSTRATE OF PROPYLENE AND / OR ACROLEINInfo
- Publication number
- AR026296A1 AR026296A1 ARP000105719A ARP000105719A AR026296A1 AR 026296 A1 AR026296 A1 AR 026296A1 AR P000105719 A ARP000105719 A AR P000105719A AR P000105719 A ARP000105719 A AR P000105719A AR 026296 A1 AR026296 A1 AR 026296A1
- Authority
- AR
- Argentina
- Prior art keywords
- flow
- propylene
- acrolein
- head
- acetic acid
- Prior art date
Links
Abstract
En un proceso para la purificacion de ácido acrílico obtenido por la oxidacion del sustrato gaseoso de propileno y/o acroleína, la mezcla gaseosa dereaccion (1) formada por propileno, si la mezcla comprende propileno, de productos de oxidacion final, de ácido acrílico, de acroleína, de vapor, de ácidoacético y de productos pesados, es enviada al fondo de una columna de absorcion (C1) alimentada, a contracorriente, en la cabeza con un solvente de absorcionhidrofobico pesado. El flujo gaseoso (7), formado de propileno y productos de oxidacion final, de cantidades mayores de agua y ácido acético, y acroleína, esobtenido en la cabeza de (C1), y un flujo (4), formado de ácido acrílico, de los solventes pesados, de productos pesados y de cantidad es menores de ácidoacético y de agua, es obtenido en el fondo de (C1). El flujo (7) es enviado a un intercambiador de calor (C3), donde es llevado en contacto íntimo con unacorriente líquida descendente (8), alimentada en la cabeza de (C3), compuesta por el reciclado de una porcion, previamente enfriada, del flujo (9) del fondo de(C3), con el fin de obtener, en la cabeza, un flujo gaseoso (10) que comprende los compuestos presentes en el flujo (7), con excepcion de la mayor parte delagua y todo el ácido acético, separados del flujo (9) en el fondo de (C3).In a process for the purification of acrylic acid obtained by the oxidation of the gaseous substrate of propylene and / or acrolein, the gas mixture of reaction (1) formed by propylene, if the mixture comprises propylene, of final oxidation products, of acrylic acid, of acrolein, steam, acetic acid and heavy products, is sent to the bottom of an absorption column (C1) fed, countercurrently, in the head with a heavy hydrophobic absorption solvent. The gas flow (7), formed of propylene and final oxidation products, of larger amounts of water and acetic acid, and acrolein, obtained at the head of (C1), and a flow (4), formed of acrylic acid, of Heavy solvents, heavy products and quantity are less acetic acid and water, is obtained in the background of (C1). The flow (7) is sent to a heat exchanger (C3), where it is brought into intimate contact with a descending liquid stream (8), fed into the head of (C3), composed of the recycling of a portion, previously cooled, of the flow (9) of the bottom of (C3), in order to obtain, in the head, a gaseous flow (10) comprising the compounds present in the flow (7), with the exception of most of the water and all the acetic acid, separated from the flow (9) at the bottom of (C3).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ARP000105719A AR026296A1 (en) | 2000-10-30 | 2000-10-30 | A PROCESS FOR THE PURIFICATION OF ACID OBTAINED BY THE OXIDATION OF THE GASEOUS SUBSTRATE OF PROPYLENE AND / OR ACROLEIN |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ARP000105719A AR026296A1 (en) | 2000-10-30 | 2000-10-30 | A PROCESS FOR THE PURIFICATION OF ACID OBTAINED BY THE OXIDATION OF THE GASEOUS SUBSTRATE OF PROPYLENE AND / OR ACROLEIN |
Publications (1)
Publication Number | Publication Date |
---|---|
AR026296A1 true AR026296A1 (en) | 2003-02-05 |
Family
ID=37515125
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ARP000105719A AR026296A1 (en) | 2000-10-30 | 2000-10-30 | A PROCESS FOR THE PURIFICATION OF ACID OBTAINED BY THE OXIDATION OF THE GASEOUS SUBSTRATE OF PROPYLENE AND / OR ACROLEIN |
Country Status (1)
Country | Link |
---|---|
AR (1) | AR026296A1 (en) |
-
2000
- 2000-10-30 AR ARP000105719A patent/AR026296A1/en unknown
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