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Separation Processes

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Crystallization for Ultra-Pure Chemicals

Optimized crystallization units can help address the challenges posed by product-purity requirements in the battery industry Crystallization is a key purification process that has been used for decades to refine sugar, produce essential pharmaceuticals and recover valuable salts. Producers of…

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Smarter Chemical Recovery in Pulping Facilities

Evaporation and crystallization technologies have the ability to create advantages for pulping facilities by improving operational efficiency and reducing waste, while simultaneously producing high-value product streams The emergence of new products and markets is driving a global renaissance of the…

An Overview of Synthetic Filter Media

Many factors impact the performance of synthetic filtration media, from thread and weave styles to drainage and coverage considerations Under the broad umbrella of filter media, there are many synthetic media materials, including woven filter cloths, woven and non-woven fabric…

BASF and Heraeus to form a JV for precious-metal recycling solutions in China

BASF SE (Ludwigshafen) and Heraeus Precious Metals (Hanau, both Germany) have agreed to form a 50–50 joint venture (JV) to recover precious metals from spent automotive catalysts. The new company named BASF Heraeus (China) Metal Resource Co., Ltd. will be…

An electrochemical process for producing and recycling VRFB electrolytes

Electrochem Technologies & Materials Inc. (Montreal, Canada; www.electrochem-technologies.com) has recently patented its process for the production and recycling of all vanadium electrolytes (VE) used in vanadium redox flow batteries (VRFBs). This electrochemical technology offers a sound and profitable alternative to…

Advanced amine-scrubbing solvent offers carbon-capture advantages

Honeywell UOP (Des Plaines, Ill.; www.honeywell.com/uop) recently began offering a post-combustion carbon-capture system based on new advanced solvent technology that allows for improved carbon-capture economics for hard-to-abate industries, such as steelmaking, rotary kiln operations (such as cement-making) and natural-gas power…

Linde Engineering Starts Up World’s First Plant for Extracting H2 from Natural Gas Pipelines Using Membrane Technology

Linde Engineering (Pullach, Germany) has officially started up the world’s first full-scale pilot plant in Dormagen, Germany (photo) to showcase how hydrogen can be separated from natural gas streams using Linde’s Hiselect powered by Evonik membrane technology. The process is…

Extracting high-quality MgSO4 from seawater desalination brine

A team of researchers, led by professor Myoung-Jin Kim, from Korea Maritime and Ocean University (Busan, South Korea; www.kmou.ac.kr), has developed a process that recovers calcium-free magnesium sulfate from seawater desalination brine (SDB). The process, described in a recent issue…

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Process Commercialization: The 2021 Kirkpatrick Chemical Engineering Achievement Award

To honor the efforts of those chemical engineers and their companies that have successfully commercialized a new process for the first time, Chemical Engineering magazine has been be-stowing its Kirkpatrick Chemical Engineering Achievement Award since 1933. The aim of the…