AR022550A1 - GLYCOLYSIS PROCESS FOR POSCONSUME PET RECYCLING - Google Patents
GLYCOLYSIS PROCESS FOR POSCONSUME PET RECYCLINGInfo
- Publication number
- AR022550A1 AR022550A1 ARP000100557A AR022550A1 AR 022550 A1 AR022550 A1 AR 022550A1 AR P000100557 A ARP000100557 A AR P000100557A AR 022550 A1 AR022550 A1 AR 022550A1
- Authority
- AR
- Argentina
- Prior art keywords
- reactor
- polyester
- upper layer
- lower layer
- posconsume
- Prior art date
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
- Y02P20/143—Feedstock the feedstock being recycled material, e.g. plastics
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
En la presente se describe un proceso para despolimerizar y purificar poliéster posconsumo contaminado. En el proceso, la despolimerizacion se efectua pormedio de la glicolisis en un recipiente reactor agitado. El proceso incluye los pasos de ponere n contacto un poliéster contaminado con una cantidad de glicolpara producir una razon molar de más aproximadamente 1 a aproximadamente 5 de unidades totales de glicol a unidades totales de ácido dicarboxílico a unatemperatura de entreaproximadamente 150 y aproximadamente 300sC y a una presion absoluta de aproximadamente 0,5 a aproximadamente 3 bars. Esta reaccion seejecuta durante un tiempo suficiente para producir, en el reactor, una capa superior que tiene un contaminante derelativamente baj a densidad que flota sobreuna capa inferior que incluye un oligomero despolimerizado de relativamente alta densidad del poliéster y separa dicha capa superior de dicha capa inferior.Las capas se pueden separar retirando la capasuperior del reactor e n una primera corriente y retirando dicha capa inferior del reactor en una segundacorriente.A process for depolymerizing and purifying contaminated post-consumer polyester is described herein. In the process, depolymerization is carried out by means of glycolysis in a stirred reactor vessel. The process includes the steps of contacting a contaminated polyester with an amount of glycol to produce a molar ratio of more than about 1 to about 5 total units of glycol to total units of dicarboxylic acid at a temperature of between about 150 and about 300sC and at a pressure absolute from about 0.5 to about 3 bars. This reaction is carried out for a sufficient time to produce, in the reactor, an upper layer that has a contaminant that is depressively low in density that floats on a lower layer that includes a depolymerized oligomer of relatively high density of the polyester and separates said upper layer from said lower layer. The layers can be separated by removing the upper layer of the reactor in a first stream and removing said lower layer from the reactor in a second stream.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11944799P | 1999-02-10 | 1999-02-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AR022550A1 true AR022550A1 (en) | 2002-09-04 |
Family
ID=45570349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ARP000100557 AR022550A1 (en) | 1999-02-10 | 2000-02-09 | GLYCOLYSIS PROCESS FOR POSCONSUME PET RECYCLING |
Country Status (1)
| Country | Link |
|---|---|
| AR (1) | AR022550A1 (en) |
-
2000
- 2000-02-09 AR ARP000100557 patent/AR022550A1/en active IP Right Grant
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG | Grant, registration |