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.

The reactor of the Vacurema T large-scale plant almost reaches the roof of the new Erema production hall, which was commissioned in 2021.

Polyethylenterephthalat

Kunststoff Werkstoffe

Thermoplaste

Extrusionsanlagen

Kunststoffverarbeitung: Maschinen und Komponenten

Extrusions-Zubehör

Kunststoff-Recycling

Kunststoffverarbeitung: Verfahren

Kunststoff-Aufbereitung

XXL Recycling Plant for Brazil

Faerch and Erema realize closed loop for PET food packaging.

16:9

Verpackungsmittel aus Kunststoffen

Kunststoffverarbeitung

Verpackungsmaterial

Logistik

Recycling

Umweltmanagement

Verpackungstechnik

Kreislaufwirtschaft

Closed the Loop for PET Trays

Strategic partnership delivers best practice example of a closed recycling loop for PET-based multilayer.

Best practice example of a closed recycling loop for PET-based multilayer.

Kunststoffe

Photonik

Optik

Technische Kunststoffe

Closed Recycling Loop for PET-Based Multilayer

Mohinani is bringing PET bottle-to-bottle recycling to West Africa and is buying two Starlinger plants for this purpose.

The recoSTAR PET iV+ recycling lines produce food-grade rPET that can be used up to 100% in PET preform production.

Bottle-to-Bottle-Recycling in Ghana

At its small-scale PET recycling pilot line in Octeville, France, Sidel will develop its understanding of PET recycling with the aim of giving comprehensive support to the market as it switches to greater use of recycled PET.

Sidel opens a new hub to develop design for recycling primary packaging in Octeville, France.

Sidel Opens Hub to Develop Design for Recycling Primary Packaging

The increasing demand for recyclates and the shortage of food-grade PET flakes pose challenges for batch quality and color consistency.

Repi offers various additives for recycling PET, which can be used, for example, to prevent the material from darkening.

Messe K-Kunststoffmesse

kunststoffe-international.com

kunststoffe.de

Kunststoff-Rezyklat

Additive

Compensating for Darkening in Recycled PET

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 

Engel has developed a new way to process plastic scrap as flakes on an injection molding machine straight after grinding. This innovation eliminates the pelletization step and significantly boosts the economics of plastics recycling. The key to consistently high product quality is to vent the plastic melt.

Test setup at the pilot plant in St. Valentin, Austria: for the two-stage process, Engel has combined a plasticizing screw with an injection screw.

Venting in a Two-Stage Process Boosts the Efficiency of Recycling Processes

Spritzgießen

Spritzgießmaschinen

High-Quality Recycled Plastics Obtained Directly from Flakes

The German Recycler Sysplast uses and develops pioneering technologies, including for the processing of surface-coated waste materials from the electronics and automotive industries. For this, the company uses high-performance melt filters from manufacturer Ettlinger.

At Sysplast, an Ettlinger high-performance ERF 350 melt filter separates impurities from the melt in a self-cleaning and largely maintenance-free process; left: Sysplast Managing Director Udo Dobberke, right: Ettlinger Sales Manager Karsten Bräunig.

Styrol-Copolymerisate

Recycling of Styrene-based Thermoplastics

At K 2022, Engel, with its partners Alpla Group, Brink and IPB Printing, is presenting a quantum leap for the packaging industry. Thin-wall containers can for the first time be produced from PET directly by injection molding in only one process step.

Fig. 1. The thin-walled containers are injection molded from rPET.

Spritzgießwerkzeuge

Werkzeuge für die Kunststoffverarbeitung

Energieeffizienz

Industrie 4.0 für die Kunststoffverarbeitung

Industrie 4.0

Processing rPET by Thin-Wall  Injection Molding

Additives manufacturer Milliken has developed viscosity modifiers specifically for recycled polypropylene (rPP). The products, called DeltaFlow, improve the flow behavior of rPP for extrusion and injection molding processes, according to the company.

The modifiers allow recycled PP to be processed at lower temperatures. Among other things, this reduces cycle times during injection molding.

Improved Processing of Recycled PP

The growing demand for plastic recycling directly reflects the machine sales for Polystar. By the end of April 2022, a total of over 110 recycling machines will have been shipped within 12 months – twice as many compared to last year.

The new factory in Sinji industrial park is the third Polystar manufacturing facility in Taiwan.

Sales Doubled for Polystar in 2021

Together, the two companies want to tackle the challenge of plastic packaging waste and its recycling.

The partnership between Borealis and Reclay aims to accelerate the shift to a circular plastics economy.

Borealis and Reclay Establish Strategic Partnership

Researchers from the University of Birmingham, U.K., and Duke University, U.S., have created a new family of polymers from sustainable sources that retain all of the same qualities as common plastics, but are also degradable and mechanically recyclable.

Kunststoffe, biobasiert

Biokunststoffe

Recyclable Plastics Based on Sugars

Aimplas has completed a project to recover end-of-life fishing nets and other marine litter to manufacture furniture made of 100 % recycled plastic.

At an event at the Innsomnia facilities in the Port of Valencia, a bench was unveiled measuring 6 m long and weighing more than 800 kg. It is made of recycled plastic profiles with 15 % fishing nets and other marine litter.

Marine Litter Furniture for the Marina of Valencia

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

2021-07-06 PN Ettlinger

issue 08/2022

issue 07/2022

issue 06/2022

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