Sorting black plastics into pure grades closes recycling loops

Everyone involved in the plastics industry is concerned with strict legislation and a social sense of responsibility for recovering plastics. Black plastics represent a particular challenge because they cannot be detected with the optical sorting technology found in standard recycling plants. STEINERT technology allows black plastics to be sorted from the general waste stream and to be sorted into pure grades. This enables plastic-processing companies to respond to the new challenges of the circular economy in a cost-effective manner and to be equipped for all the processes involved in plastic recovery and processing in equal measure.

Since 2011, STEINERT has been developing detection technology for very challenging sorting applications and providing forward-looking reference projects, which document that plastics and the environment are compatible.

For example, STEINERT was one of the first companies to be able to detect black plastics and thereby positively separate them, allowing recycling rates to be increased. Sophisticated air flow technology also makes STEINERT the only company to be able to cost-effectively sort flat and lightweight black materials. What’s more, the pure-grade separation of black polyolefins (PO) into their constituent parts, such as polyethylene (PE) and polypropylene (PP), but also polystyrene (PS) and acrylonitrile butadiene styrene copolymers (ABS) allows polymer granulates to be replaced by mint-condition recyclates.

Turning plastic residues into new goods - thanks to pure-grade separation

Plastic-processing companies in particular can therefore benefit from STEINERT products and separate plastic residues containing a high proportion of black content at large-scale industry level and then upgrade them to a plastic granulate with properties similar to those of the primary raw material in order for it to be used to manufacture durable quality products. This procedure means that a significant percentage of new plastics can be replaced with recycled materials today, thereby saving hundreds of thousands of tons of CO2 every year.

State-of-the-art technologies coupled with 130 years of process know-how allow international customers to combine cost-effectiveness with sustainability to comply with stricter legislation and the sense of responsibility demanded by society and therefore take one step closer to a genuinely closed resource cycle and more environmentally-sound future.

⇥Stand: Halle 9 / B23

www.steinert.de

Related articles:

Issue 2018-01 Removal of foreign particles

Production of high quality organic material with the UniSort Black from STEINERT

According to the RAL quality assurance method for compost (RAL-G2-251), only 25 cm² of foreign particles are permitted per litre of fresh substance in fresh and finished compost. This value will be...

more
Issue 2019-1 Sharing knowledge

Steinert with Best Practice Workshops on the way

The workshops are spreaded over the 4th quarter and included hands-on training at customer premises and theoretical camps at headquarters. The Waste & Recycling division is focussing on commercial...

more

"Rhine Clean up" campaign protects the oceans from more than 160 tons of waste

Packaging waste, various plastics, discarded plastic ice-cream spoons, lots of glass, crown caps and even more cigarette stubs lie on the shore and reach our seas through the Rhine. The pictures of...

more

Establishing highly refined plastic packaging waste streams

Plastics Recyclers Europe releases guidance on quality sorting of plastic packaging Plastic packaging represents the biggest share of the European plastic demand1, and consequently, of the waste that...

more
Issue 2018-01 High-precision material sorting

Contract Recycling of Metal Waste and Plastics with Sesotec VARISORT COMPACT Sorting System

Every month MB-Sort recycles up to 200 tons of various mixed fractions. Its customers include recycling companies and companies from the manufacturing industry. „In our own sorting line the material...

more