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Processing & Handling

ChemChronicles: ‘Eye it Before You Buy It,’ The Invention of Cellophane

Transparent polymer film started with an accident . . . and spurred a packaging revolution One night in Paris, in 1900, Swiss chemist Jacques Brandenberger was enjoying dinner in a restaurant when he noticed that a fellow patron had spilled…

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Scrolling or Pushing? Choosing the Right Type of Filtration Centrifuge

Understanding the working principles of scrolling and pushing centrifuges can help when deciding which type to use. Feed properties and other factors also play a role When looking for a proven solution for mechanical dewatering, you will most likely come…

Magnetic-Drive Positive-Displacement Pumps for Chemical Processing Applications

Advances in sliding-vane and internal-gear seal-less pump technologies can provide many benefits when compared to centrifugal pumps or more well-known positive-displacement pump options Facilities in the chemical process industries (CPI) use a wide array of flowing substances that must be…

Grace invests in small molecule API expansion

W. R. Grace & Co. (Columbia, Md.; www.grace.com)  a global leader in specialty silica and fine chemicals, today announced it is proceeding with an expansion of its contract development and manufacturing (CDMO) facility in South Haven, Mich. The expansion will…

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Iron catalyst shows promise for improving economics of metathesis reactions

The olefin metathesis reaction produces new carbon-carbon double bonds by swapping the carbon atoms in olefins, and is important for producing a number of chemicals. Currently, the most popular catalysts for this reaction are made from the precious metal ruthenium…

Recycling Portland cement — emissions-free

The production of clinker used for making cement continues to be a major source of global CO2 emissions. Now, three engineers from the University of Cambridge (U.K.; eng.cam.ac.uk) have filed a patent and been awarded new research funding for their…

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Facts At Your Fingertips: Alternating-Current Induction Motors

Alternating-current (a.c.) induction motors are widely used throughout the chemical process industries (CPI) and other manufacturing sectors to convert electrical energy into mechanical energy to power rotating equipment, such as centrifugal pumps, compressors and fans, as well as other industrial…

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Materials of Construction: Stainless Steel Versus Nickel Alloys

Nickel alloys have long been the default choice for demanding applications in the chemical process industries (CPI). A new grade of stainless steel offers an alternative Demanding chemical engineering applications, such as plate heat exchangers (PHEs; Figure 1), tubing, pipes…

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Polymer-coal composite used for building materials

X-Materials (Orlando, Fla.; www.x-materials.com), the advanced materials division of Semplastics Inc., has developed a method for manufacturing a coal-containing ceramic polymer-composite material that is being used to make building materials, such as roofing tiles, as well as other products. According…

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Chemenator Briefs

Cellulosic ethanol Clariant AG (Muttenz, Switzerland; www.clariant.com) has produced the first commercial cellulosic ethanol at its sunliquid production plant in Podari, Romania. The entire offtake is contracted with a multi-year agreement to Shell. Over the last six months, the plant…