Machinery and equipment manufacturer Erema reports that demand for recycling technologies for plastics, especially PET, remains very high even during the Corona pandemic.

Kunststoff-Aufbereitung

Kunststoffverarbeitung: Maschinen und Komponenten

Kunststoff-Recycling

Kunststoffverarbeitung

Polyethylenterephthalat

Kunststoff Werkstoffe

Thermoplaste

Kunststoffverarbeitung: Verfahren

Demand for Recycling Technologies Continues to Grow

PET bottles can be recycled into new food packaging. Large-scale recovery systems and recycling procedures have become established since many years. PET bottles made of 100 % post-consumer recyclate are already available in the market, and a version made of renewable raw materials also exists. No other packaging plastic can show such a positive balance. Nonetheless, PET is under criticism.

Prime Material for a Circular Economy

Verpackungsmaterial

Logistik

Recycling

Umweltmanagement

Technische Kunststoffe

Polyethylene Terephthalate (PET)

The Alpla Group is investing in an extrusion line for food-grade recycled PET (rPET) from used PET bottles at its Anagni site.15,000 tons of rPET are to be produced annually as a result.

Verpackungsmittel aus Kunststoffen

Verpackungstechnik

Kunststoff-Rezyklat

Unternehmen

kunststoffe.de

Alpla Expediting a Bottle Cycle in Italy

Henkel significantly expands partnership with social enterprise Plastic Bank. The partners opened their first three plastic waste collection centers in Cairo

Polyethylen

Kunststoffhandel

Dienstleistungen

Handel

Henkel and Plastic Bank Open First Collection Centers in Egypt

A consortium of well-known beverage brand owners has produced sample bottles from food-grade rPET for the first time using a breakthrough enzymatic recycling process.

Kreislaufwirtschaft

Global Brands Unveil World’s First Sample PET Bottles

Together with the University of Applied Sciences Magdeburg-Stendal, Germany, MultiPet GmbH is researching into injection-moldable blends that can be used to produce high-quality multi structured injection-molded parts from mixed PET.

Production of Injection-Moldable PET-Blends from Mixed Plastic Fractions

rPET Blends for High Standards

Erema enters a new dimension with large-scale recycling plants. Up to 40,000 tonnes per year of rPET can now be produced. The first plant of this size has been shipped to Brazil.

Extrusionsanlagen

Extrusions-Zubehör

XXL Recycling Plant for Brazil

In the manufacture of semi-finished products such as fibers or films, waste that can be recycled and reused as a raw material is repeatedly produced along the entire production chain. The recycling of PET is a particular challenge to the plant construction because of the hydrolytic polymer degradation. 

Modular Concept for Industrial Waste Offers Flexible Solutions 

Schmelzefilter

Mühlen

Extrusion

PET Recycling 

Enhancing mixed bottle flakes by turning them into extrudable recycled crystalline polyethylene terephthalate (rCPET) was the goal of a joint development project looking to close the gap in the PET recycling system. By successfully producing a sheet made from recycled material suitable for high-quality applications such as thermoformed food trays, Gneuss, Sukano and Illig have demonstrated that this approach is indeed possible.

Upcycling of Mixed APET Bottle Flakes into Thermally Stable rCPET Food Trays

Polybutylenterephthalat

Farbstoffe und Pigmente

Additive

Anlagen Lebensmittel

Anlagen für die Additive Fertigung

Anlagen Additive Fertigung / 3D-Druck, andere

Filteranlagen

Farbstoffe

Flakes

PET: From A to C

As expected, the K 2019 displayed a wide range of machine technology and complete system solutions for plastics recycling. At least since the trade fair in Düsseldorf, Germany, it has become obvious that industry today can offer solutions for closing the plastic cycle.

The Technology to Close the Plastic Cycle Exists

Sensorik für Kunststoff-Verarbeitungsmaschinen

Industrie 4.0

Industrie 4.0 für die Kunststoffverarbeitung

Messe K-Kunststoffmesse

kunststoffe-international.com

IR-Sensor

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Sensoren / Messwertaufnehmer

Mahlgut

Wiederaufbereitung

Extruder

Waschen und Entfetten

Sortierer

Mahlanlagen, fein

Sensoren,  optische

Schneidmühlen

Aufbereitungsmaschinen

Compoundieren

A Closed Recycling Cycle – Now!

When processing post-consumer PET bottle flakes for reuse in bottles, the purity requirement for the material combined with the high degree of contamination of the bottle flakes make high demands on melt filtration.

Filtration Systems for Recycling Applications

Plant Retrofit for Bottle to Bottle Recycling

Smart assistance systems are paving the way for self-optimizing production. Automatic correction of quality-relevant parameters is already reality for individual phases of the injection molding process. At K 2019, Engel presented the iQ weight control with the example of a recyclate application for the first time.

The iQ weight control Assistance System Ensures Higher Process Stability

Werkzeuginnendrucksensoren

Spritzgießen

Steuern, Regeln

Software

Messgeräte für Viskosität

Werkstoffprüfung

Opening up a Broader Range of Applications for Recyclates

Currently, recyclates are in high demand, including the automotive industry. Previously, component suppliers had reservations about using recyclates in safety-related areas, because mechanical properties varied too widely. Now, materials producer JSP has developed an expanded polypropylene with 25 % recyclate content precisely for these application areas. But to ensure high quality, close cooperation with the recycling company is essential.

Circular Economy for Expanded Polypropylene (EPP)

Automotive

Elektronik

Polypropylen

Automotive Components  Made of Packaging

By means of high-performance processes, chemical recycling converts plastic waste into high-grade material for new plastic products. Moreover, freedom of design results by selecting a suitable process and the matching waste material. Hereby, the right combination permits customized polyols to be created for the desired application area.

Solvolysis Using Different Solvents in Practice

Polyurethan-Schaumstoffe (PUR)

Halbzeuge und Zwischenprodukte

Kunststoff-Halbzeuge

Polyurethan

Plastic Waste into  Custom-Made Polyols

Borealis, Clariant, Remondis, LyondellBasell – many of the big names in the plastics industry announced partnerships with Neste at, or in advance of, K 2019. The Finnish company is a sought-after partner in the industry.

Interview with Mercedes Alonso, Executive Board Member at Neste

Streifinger, Florian

Biokunststoffe

“Chemical Recycling Is Not yet Ready for Commercial Use”

High Performance Melt Filters for Higher Throughputs

Two new models of the Eco product family from Ettlinger take into account the need for systems with a higher product throughput.

Two new models of the Eco product family from Ettlinger take into account the need for systems with a higher product throughput and are initially available in sizes suitable for medium-sized recycling lines.

The new performance enhanced ECO 350 replaces the former ECO 250, while the new ECO 500, capable of achieving capacities of up to 4000 kg/h, replaces the former ECO 250 Twin. The ECO 200 completes this range.

Ettlinger’s melt filter technology is based on the principle of self-cleaning with a continuous flow of melt from the outside to the inside of a rotating, perforated drum. A scraper removes the contaminants that are held back on the surface and feeds them to the discharge system. Just like the ERF filters, which are designed for higher contamination, the new ECO filters also have a modular structure, thereby providing a wide range of options for adjusting the filter properties to the respective task.

A new innovative system facilitates an even higher concentration of contaminated discharge, which, in turn, further decreases the already typically low loss of PET melt associated with the melt filters. Better access to the scraper system reduces the amount of time needed by the operator for maintenance and replacement tasks. The discharge now exits via the front side of the ECO filters, which is generally easier for the user to access.

Uwe Kellner, Managing Director Ettlinger: “PET recyclers are reporting ever-increasing volume flows, resulting in a sharp increase in the capacity utilization of many machines. At the same time, buyers have more stringent requirements regarding the purity of the recycled material. Consequently, many of the filter systems in operation today are reaching maximum capacity. Our further developments have been tailored to these changes in the market. With these in mind, we have achieved enhanced performance without compromising on filtration efficiency. The new designs combine screen sizes up to 60 µm with a minimum loss of PET through the discharge.”

The ECO melt filters are designed to process very low viscosity polymer feedstock (mainly PET and PA) and to facilitate the efficient filtration of contaminants such as paper, wood, aluminum, silicone, etc. Moreover, the closed discharge system prevents the occurrence of black specks.

For this reason, the classic application for ECO melt filters is extrusion systems where PET bottle flake is converted into food packaging films, packaging tape and fibers, as well as PET repelletizing and compounding processes. ECO melt filters are suitable for single-screw or twin-screw extrusion lines, irrespective of the pelletizing system or other downstream units, and can achieve throughputs from 150 kg/h up to 4000 kg/h.

Ettlinger Kunststoffmaschinen GmbH 

https://www.ettlinger.com

The new ECO 500 high performance melt filter achieves throughputs of up to 4000 kg/h

16:9

2021-07-06 PN Ettlinger

issue 09/2021

issue 08/2021

issue 07/2021

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