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 ACROLEIN

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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
Application number
ARP000105719A
Other languages
Spanish (es)
Original Assignee
Atofina
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Atofina filed Critical Atofina
Priority to ARP000105719A priority Critical patent/AR026296A1/en
Publication of AR026296A1 publication Critical patent/AR026296A1/en

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).

ARP000105719A 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 AR026296A1 (en)

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)

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