METHOD FOR EXTRACTION AND TRANSFORMATION BY TRANSESTERIFICATION OF PHTHALATES CONTAINED IN PVC PLASTICS MATERIALS
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Jul 18, 2024
app pub date -
May 5, 2022
filing date -
May 20, 2021
priority date (Note) -
Published
status (Latency Note)
Importance
Loading Importance Indicators... 
Abstract
The present invention relates to a process for obtaining a dialkyl phthalate and a reusable target PVC plastic from a PVC feedstock containing at least one phthalate, including:
- a) solid-liquid extraction of PVC feedstock in the form of particles by placing the particles in contact with a solvent to produce a liquid phase enriched in the phthalate and a solid phase including PVC plastic depleted in the phthalate;b) transformation of the phthalate of the liquid phase into dialkyl phthalate by transesterification using the solvent;c) a solid-liquid separation between the solid phase and the liquid phase to produce at least one solid stream including the PVC plastic depleted in the phthalate so as to obtain the target PVC plastic;d) a liquid-liquid separation of the liquid phase, to produce at least a first liquid effluent including the dialkyl phthalate and a second liquid effluent comprising said solvent.
Loading the Abstract Image...
OK
First Claim
Family
Loading Family data...
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully