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Separation Processes

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Ion-Exchange Resins: Solutions for a Wide Range of Challenges

A large selection of ion-exchange resins is available today for a constantly growing variety of applications. In order to choose the appropriate resin for a specific application, it is important to carefully evaluate the range of resin and process properties…

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Recovering lithium with thermal-swing liquid-liquid deionization

Much of the planet’s lithium is contained in brine, but the concentration is often quite low, making it difficult to efficiently extract lithium — typical extraction technologies may only demonstrate 30–60% yield. Adionics (Les Ulis, France; www.adionics.com) has developed a…

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Completely recycled viscose for the first time

Researchers at Lund University (Sweden; www.lth.se) have succeeded in converting worn-out cotton sheets into new viscose fibers using a process that — for the first time — enables all of the viscose to be recycled. Current recycling methods often require…

Recently published books for April 2024

The following list is a selection of recently published books that may have relevance for parts of the chemical process industries (CPI):  Processing of Biomass Waste: Technological Upgradation and Advancement. Edited by Angana Sarkar and Ulla Lassi, Elsevier Press, March…

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New membranes for dehydrating organic solvents

Researchers at Asahi Kasei Corp. (Düsseldorf, Germany and Tokyo, Japan; www.asahi-kasei.com) are developing a membrane-based system that dehydrates organic solvents without heat or pressure. The system is targeting pharmaceutical-manufacturing applications, where organic solvents are commonly used in performing reactions, as…

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Pilot plant planned for CO2 capture project using carbonate fuel cells

ExxonMobil affiliate Esso Nederland B.V. (Rotterdam, the Netherlands; www.esso.nl) is planning to build a pilot plant at its Rotterdam manufacturing complex to generate performance and operability data for a modular carbon-capture and storage (CCS) technology based on carbonate fuel cells…

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This process makes freshwater from brine while capturing CO2

A new electrochemical technology for direct-air capture (DAC) of atmospheric CO2 can also produce freshwater from brackish water or brine waste from desalination or wastewater treatment facilities (diagram). The technology, developed by Capture6 (Berkeley, Calif.; www.capture6.org), splits the salt content…

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Reducing CO2 emissions from pig iron production

Researchers of Karlsruhe Institute of Technology (KIT; Germany; www.kit.edu) and the SMS group GmbH (Düsseldorf, Germany; www.sms-group.com) have developed a new process to reduce CO2 emissions from worldwide steel production by several hundred million tons per year. It is based…

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Recycle any type of magnet from end-of-life products

A new pilot plant is demonstrating a proprietary technology for recycling magnet materials from end-of-life (EOL) products, such as electric motors, automobile parts and hard-disk drives. Developed by Cyclic Materials Inc. (Toronto, Ont., Canada; www.cyclicmaterials.earth), the Mag-Xtract process is said…

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Innovations in Pilot-Plant Distillation Process Design

Small-scale distillation processes have specific concerns that are different than commercial-scale distillation. Presented here are several topics, including column internals and column-sizing software, considered from the perspective of pilot-scale distillation The design and operation of laboratory- and pilot-scale columns are…