Successful dispersion depends on a basic understanding of dispersion equipment and how dispersers should be used High-shear mixers typically operate at high rotational speeds and are used for mixing applications that are best described as dispersion processes. They can be…
Dimensionless numbers refer to physical parameters that have no units of measurement. These numbers often appear in calculations used by process engineers. As long as consistent units are used, dimensionless numbers remain the same whether metric or other units are…
Gold mines using traditional cyanide-leaching extraction processes will benefit with the launch of a new technology allowing onsite production of sodium cyanide. The technology, developed by Synergen Met Pty Ltd (Brisbane, Australia; www.synergenmet.com), will eliminate a range of hazardous activities…
Researchers from North Carolina State University (Raleigh; www.ncsu.edu) and Qatar University (Doha; www.qu.edu.qa) have developed a new metal alloy that is claimed to have a higher strength-to-weight ratio than any other existing metal material. The low-density, nanocrystalline alloy — Al20Li20Mg10Sc20Ti30…
Last month, Novozymes (Copenhagen, Denmark; www.novozymes.com) launched a new enzyme, dubbed Eversa, which is said to be the first commercially available enzymatic solution to make biodiesel fuels from waste oils. The enzymatic process converts used cooking oil or other lower-grade…
Meanwhile, a new class of highly fluorinated polymers is being developed at the Institute of Microstructure Technology (IMT), Karlsruhe Institute of Technology (KIT; Karlsruhe, Germany; www.kit.edu) that repels both water and oil. Last month, IMT was awarded €2.85 million funding…
If the word “modular” brings to mind a trailer office parked on site, it’s time to revisit modular systems. Today’s modular system go well beyond office space and tool sheds, and can contain almost anything from a skid-mounted filtration system…
Enzymes, nature’s catalysts, have been used in industrial processes for centuries. Now, they are coming into their own in the chemical process industries (CPI). As green chemistry becomes an industry mantra, pressures to reduce product cost, facility carbon footprint and…
A wide range of factors must be taken into account before selecting the most appropriate reforming technology From the agrochemicals sector to steel production, from petroleum refineries to chemicals production — many sectors of the chemical process industries (CPI) would…
The physical characteristics of dispersed particles have a large impact on overall rheological properties Many important products of the chemical process industries (CPI) exist as suspensions or dispersions of particles in liquid media. Examples range from adhesives, ceramics, paints and…