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Combine multiple steps in a single vacuum mixer-dryer unit

The Bolz conical vacuum mixer-dryer (photo) has been specifically engineered to meet the strictest requirements for vacuum processes by combining multiple processing steps into a single fully enclosed processing system that delivers safer operations by utilizing fixed permanent connections for…

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Chementator Briefs [December 2022]

Li extraction A new technology is going to be introduced at the Schlumberger NeoLith Energy direct lithium-extraction (DLE) project in Clayton Valley, Nev. Developed by Gradiant Ventures (Boston, Mass.; www.gradiant.com), the technology enables high levels of lithium concentration (while simultaneously…

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Supercritical extraction drives ‘molecular washing machine’ for plastic waste

A new recycling process has been developed for scrap polypropylene (PP), a waste stream that is currently underserved by many plastics-recycling facilities. The process, developed by PureCycle (Orlando, Fla.; www.purecycle.com), aims to “wash the plastic molecules” using a series of…

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Facts At Your Fingertips: Liquid-Liquid Extraction Basics

Liquid-liquid extraction (LLE) is a separation technique that exploits differences in the relative solubility of compounds of interest (the solute) in two immiscible liquids — most often an aqueous phase and an organic solvent. This one-page reference reviews basic information…

Better stress distribution with this tool design

This company’s Wright Drive 2.0 socket design is said to distribute contact stress more effectively than other wrench systems. The Wright Drive 2.0 12-point design has up to 10 times more tool-to-fastener contact area than conventional 12-point wrenches. The design…

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Iridium-free electrolysis demonstrated for stable hydrogen production

The necessity for precious metals, such as iridium, in water-splitting catalysts is a major challenge in the feasibility of large-scale production of hydrogen using electrolysis. Now, a team of researchers from Rice University (Houston; www.rice.edu) has developed a mechanism for…

New Delta Hybrid series

The Delta Hybrid series (photo) offers an innovative solution for the pneumatic conveying of sensitive, powdery and granular media. The rotary lobe compressors or screw blowers can offer maximum energy efficiency, minimum lifecycle costs, 100% pure and reliable process air…

Facts At Your Fingertips: Crossflow Membrane Filtration Module Types

In crossflow membrane filtration (CMF), feed flow is parallel to the filtration surface (rather than perpendicular to it, as in conventional filtration). During a given pass, a portion of the feed permeates the membrane, while a larger portion is retained…

Wear-resistant screen cloth — with multiple service life

At Powtech last month, this company presented completely new, more wear-resistant screen cloths that, compared to previous standard cloths, achieve an increased service life with abrasive bulk materials. Matched to the wire thickness and mesh size, the screen cloths are…

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Managing Fouling in Heat Exchangers

Fouling of heat exchanger surfaces reduces thermal efficiency. An improved understanding of fouling and the design factors that affect it can help ensure that heat exchange occurs during normal operating conditions Using tubular heat exchangers is an efficient and reliable…