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Pulling iron out of waste printer toner

19:00 EST 14 Nov 2017 | AAAS

(American Chemical Society) Someday, left-over toner in discarded printer cartridges could have a second life as bridge or building components instead of as trash, wasting away in landfills and potentially harming the environment. One group reports in ACS Sustainable Chemistry & Engineering that they have devised a method to recycle the residual powder in 'empty' cartridges into iron using temperatures that are compatible with existing industrial processes.

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