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Chemical Engineering

“Chemical sorting” process improves separation rate of solid contaminants from automotive waste

Processes to reuse plastics from end-of-life vehicles are complicated by solid contaminants — including pre-embedded metal and rubber components of different sizes and reinforcing glass fiber. Currently, recycling solids-containing waste-plastic parts is accomplished by physical sorting processes. Honda (Tokyo, Japan;…

First continuous and scalable ambient pathway to electrically conductive plastics

Electrically conductive plastics, also known as conjugated polymers, bring many cutting-edge benefits for flexible sensors, medical devices, energy-storage systems and more. They are currently produced at relatively small volumes and come with extremely high prices. A novel technology discovered at…

Improved version of PFAS capture-and-destruction technology commissioned in Germany

Following regulations for drinking water, increasingly stringent limits for per- and polyfluoroalkyl substances (PFAS) in industrial wastewater are anticipated, necessitating improved technology to handle higher rates of removal, as well as to destroy the compounds in concentrated samples. Gradiant (Boston,…

CO2-utilization technology makes renewable acrylonitrile

Nearly all of the currently produced building-block chemical acrylonitrile (AN) results from the ammoxidation of propylene, a process that requires precise heat control and generates several toxic side products, such as hydrogen cyanide. The startup company Mars Materials (Houston, Tex.;…

Novel PVC-recycling process piloted in Ohio

Polyvinyl chloride (PVC) is among the world’s most widely used polymers. Recycling PVC via mechanical and high-temperature chemical processes is challenging due to its chlorine content.The startup company Plastic Back (Tel Aviv, Israel; www.plastic-back.com) aims to raise the rates of…

Agitator Impeller Hydraulic Force in Mixing Vessels

Understanding the forces acting on agitator impeller blades during turbulent flow in a mixing vessel is essential for successful and efficient operation. Presented here is information on the hydraulic force, its source, and how to calculate it Mechanically agitated vessels…

Advanced Mixing Technologies for Efficient Lithium Processing

In lithium processing, advanced mixing technologies — applied across the crystallization, carbonization and decomposition steps — can serve as critical enablers in meeting efficiency, scalability and sustainability demands Lithium carbonate (Li2CO3) is a key raw material in the production of…

Globe Valves’ Pivotal Role in Liquid Hydrogen Production

As the hydrogen economy matures and production scales up, critical equipment like valves must evolve to ensure safe and optimized handling and transport According to the Energy Transition Council, the overall share of fossil fuels is expected to decrease significantly…

Improving Level Measurement for Solids

Selecting the right technology to ensure accurate and reliable level measurement can help solve the unique challenges posed by storing and processing solid materials Advanced measurement solutions are helping to enhance process control, operational efficiency and safety throughout the chemical…

Outokumpu to construct enriched ferrochrome pilot plant in New Hampshire

Outokumpu (Helsinki, Finland) is investing approximately $45 million in a new pilot plant in New Hampshire, planned to be operational in H1 of 2027. The unique pilot plant  will represent a significant step forward in Outokumpu's strategy to scale up…