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Improved process for treating AMD waste recovers more rare earth elements

By modifying a traditional treatment method for acid mine drainage (AMD), researchers at Penn State University (PSU; State College, Pa.; www.psu.edu) were able to both reduce the amount of chemicals required for treatment and increase the amount of rare earth…

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A new approach makes flexible screw pumps

Leistritz Pumpen GmbH (Nuremberg, Germany; www.leistritz.com) has recently introduced Flexcore, the first screw pump capable of adapting to a wide range of installation situations. “With Flexcore, Leistritz has now created a globally groundbreaking innovation — a pump class that, for…

A steam-stable MOF for high-capacity carbon capture

A recently discovered family of highly porous metal-organic framework (MOF) materials is showing promise in carbon-capture applications. Researchers from University of California, Berkeley (www.berkeley.edu), Lawrence Berkeley National Laboratory (LBL; www.lbl.gov) and ExxonMobil Corp. (Irving, Tex.; www.exxonmobil.com) demonstrated the efficacy of…

Commercial plant will recover salts from incinerator flyash

Ragn-Sells AB (Sollentuna, Sweden; www.ragnsells.com) has partnered Hitachi Zosen Inova AG (Zürich, Switzerland; www.hz-inova.com) for the construction of a new plant that is designed to extract resources from flyash — a toxic byproduct of waste incinerators that normally ends up…

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Stainless-steel alloy for additive manufacturing

QuesTek Innovations LLC (Evanston, Ill.; www.questek.com) has introduced a stainless-steel powder designed for additive manufacturing (AM; 3D printing) that allows complex, high-strength parts to be made without the need for expensive post-treatments, such as cryogenic processing or high-temperature heat treatment.…

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Turning plastic waste into high-quality winter diesel fuel

Using a proprietary technique and Clariant’s (Muttenz, Switzerland; www.clariant.com) Hydex E next-generation hydro-dewaxing catalyst, VUCHT a.s (Bratislava, Slovakia; www.vucht.sk) has successfully converted plastic waste into premium winter-fuel distillate. The efficacy of this process has now been proven in a pilot…

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Significantly reduce cyanide consumption in refractory gold-ore treatment

Traditionally, cyanide consumption with conventional bio-oxidation residues is higher than with residues produced through other oxidative technologies. The Outotec MesoTherm BIOX process, based on its proven mesophile BIOX process, offers an easy, cost-effective upgrade path that can cut cyanide consumption…

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Making CO-rich syngas while avoiding carbon formation

Haldor Topsoe A/S (Lyngby, Denmark; www.topsoe.com) has developed a new technology, called ReShift, that can utilize a significant amount of CO2 for making synthesis gas (syngas; H2 + CO) without the traditional challenge of carbon formation. “CO2 addition in HyCO…

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A step toward supercritical-carbon-dioxide power generation

Construction is complete on a new building to house a fully integrated electricity-generating power plant that will demonstrate operability and performance of a 10-MW power-generation facility using supercritical carbon dioxide (sCO2) as the working fluid in a Brayton thermodynamic cycle.…

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New method makes nanocellulose composites industrially viable

Cellulose nanoparticles are of great interest as constituents of polymer composite materials because they can dramatically increase strength and toughness in a range of different polymer types. “Cellulose nanoparticles can be thought of as a more sustainable version of carbon…