Information Profile @ a glance
- Polymer recycling always means that the polymeric material was
already transformed, somehow, into semi-finished or end products and
will be reused for production of similar or identical products
- When recycling polyethylene terephthalate or PET or polyester, two
ways generally have to be differentiated:
- The chemical recycling back to the initial raw materials purified
terephthalic acid (PTA) or dimethyl
terephthalate (DMT) and mono ethylene glycol (MEG) where the polymer
structure is destroyed
completely, or in process intermediates like bis-ß-hydroxyterephthalate
- The mechanical recycling where the original polymer properties are
being maintained or reconstituted.
- Chemical recycling will become cost-efficient only applying high
capacity recycling lines of more than 50,000 tons/year
- Mechanical recycling processes are typical of small and medium-sized
industry
- The treatment of polyester waste through total glycolysis to convert
the polyester to bis-beta hydroxyterephthalate,
which is vacuum distilled and can be used, instead of DMT or PTA, as a
raw material for polyester manufacture, has been executed on an
industrial scale in Japan as experimental production
- In Methanolysis the recycling process, polyester waste is
transformed with methanol into DMT, under pressure
and in presence of catalysts
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About Chemical Recycling
- Recycling of Polymers
- Tertiary PET Recycling
- Production and Recycling of PET-Bottles
Processing
- Reactive Extrusion
- Processes Review
- Bottle to Bottle PET Recycling
- Chemolysis of polyurethanes
- Polyester Recycling
- PET Bottle Flake
Decontamination Processes
- Contaminants Levels
Project Information
- Polyols & USP Resins from PET
- Contact - project
Consultant
- Consultant
- Technology Offer
- Analysis of current projects
- Clean Flake Specifications
- Project Cost
Technology Companies
- Company in the field
- PET bottle recycling in Japan
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Research Reports
- Glycolysis of PET Waste.
- Depolymerisation of recycled PET waste
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Oligomers from Waste PET
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Depolimerization of PET bottle wastes to produce highvalue BHET
monomer using ethylenglycol
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Alkyd Resins Derived from the Glycolised PET
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Chemical recycling of PET Waste
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Glycolysis of Industrial PET Waste
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The rheological characterization of the glycolysis products
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The properties of unsaturated polyester
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Recycling Concepts for Polyester
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Chemical Recycling Process for Post-Consumer PET Bottles by
Methanolysis
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Glycolyzed PET
Patents
- Process for recovering dimethyl
terephthalate
- Preparing Polyols in the form of bifunctional
aromatic polyester alcohols from PET Waste
- Glycolysis process for recycling of post consumer pet
- PET Resin Fastheat
- Chemical process for recycling pet waste
Order the CD ROM
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