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news


Unilever plans pilot plant for sachet recycling


Unilever has announced it will use the CreaSolv solvent extraction process to recycle plastics from multilayer sachet waste. The brand owner plans to open a pilot plant in Indonesia this year to test the long-term commercial viability of the technology. David Blanchard, Chief


R&D Officer, said: “Billions of sachets are used once and just thrown away, all over the world, ending up in landfill or in our waterways and oceans. At the start of this year we made a commitment to help solve this problem, develop- ing new recycling technolo- gies. We intend to make this tech open source and would hope to scale the technology with industry partners, so others – including our competitors – can use it.” CreaSolv has been


developed by Fraunhofer Institute for Process Engineer- ing and Packaging (IVV) in


Sunsilk is among the


brands sold by Unilever in sachet packaging


Germany, in conjunction with CreaCycle, a German specialist in solvents that have a lower impact on the environment. Fraunhofer IVV has also been testing CreaSolv as a method to separate and recycle ABS containing flame retardants in waste from the electronics and automotive industries. The three main steps in


CreaSolv are: dissolution of the target plastic using a selective solvent, while other


components in the waste remain undissolved; separa- tion of contaminants from the recovered polymer solution; precipitation of the target plastic from the purified polymer solution. These main steps can be supplemented by upstream crushing and pre-cleaning processes and by downstream conversion involving mechanical concen- tration, drying and com- pounding. Dr. Andreas Mäurer, Department Head of Plastic Recycling at the Fraunhofer IVV, said: “With this innovative pilot plant we can, for the first time ever, recycle high-value polymers from dirty, post- consumer, multilayer sachets. Our aim is to prove the economic profitability and environmental benefits of the CreaSolv process. Our calculations indicate that we are able to recover six kilos of pure polymers with the same energy effort as the produc- tion of one kilo of virgin polymer.” ❙ www.unilever.com ❙ www.ivv.fraunhofer.de


Polymark makes progress


A workshop, held in Brussels in March, provided an update on the Polymark project, which is developing a chemical marker, plus identification and sorting technologies, for post- consumer plastic packaging recycling. The Polymark detection technology, based on UV-excitation and VIS-fluorescence, is capable of sorting food- grade PET bottles at 3 m/s conveyor belt speed with spatial resolution of 10 mm. Casper van den Dungen,


Vice-President of Plastics Recyclers Europe, said Polymark is “a first platform” for communicat- ing tracer technologies. Recyclers are now encour- aging European authorities to standardise the use of sorting solutions. Further discussions are needed amongst stakehold- ers. “However, Polymark marks a starting point and gives a certainty that such innovation is possible,” he said. ❙ www.polymark.org


Imerys offers new formulation service


Imerys Performance Additives has launched a formulation service which enables compounders using recycled plas- tics to attain what it calls “near virgin” solutions. The company already supplies the


recycling market for extrusion and injection applications with a mineral additive to compatibilise recycled blends


8 PLASTICS RECYCLING WORLD | June 2017


of PE and PP. Compounded with the ImerLink additive, recycled polyolefins materials that would otherwise not be compatible can be processed and used in higher value applications, says Imerys. The new service provides recycling


customers with Imerys’ in-house com- pounding and material test facilities. Trial compound batches can be designed,


manufactured and tested to ensure that they meet the requirements of recycling customers. Analysis is conducted to assess the quality of the customer’s existing input material, as well as on the final product. The resulting compound is then available for trialling by the end customer. ❙ www.imerys.com


www.plasticsrecyclingworld.com


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