Archives :: Chementator

Displaying 301 - 320 of 973 stories.
July 1, 2012
A recently launched, polymer-coated, fumed silica additive improves the performance of structural adhesives — those designed to bear loads. The new additive is capable of reducing the adhesive’s application viscosity, while simultaneously improving its ability to maintain a bead profile (sag resistance). Known as Cab-O-Sil Ultrabond, the additive was developed by Cabot Corp. (Boston, Mass....
http://www.chemengonline.com/chementator/This-coated-silica-additive-improves-adhesive-performance_9452.html
July 1, 2012
There might be as many categories of catalysts as there are chemical processing applications. And, no matter what the specialty or application, most catalyst producers are in a constant state of research and development in order to meet the demands of their chemical processing customers, as well as to develop innovative catalysts for new applications and growing market areas. Recent efforts of some of the...
http://www.chemengonline.com/chementator/catalysis/Development-Speeds-up-In-Catalysis_9441.html
July 1, 2012
The research group of Masaru Ogura, an associate professor at the Institute of Industrial Science, University of Tokyo (www.u-tokyo.ac.jp), has clarified the degradation mechanism and the role potassium carbonate plays in the catalyst systems used for reducing soot from the exhaust of diesel engines. Based on its studies, the group has proposed a new catalyst system with enhanced tolerance to catalyst...
http://www.chemengonline.com/chementator/catalysis/A-step-closer-to-replacing-platinum-in-catalytic-converters_9445.html
June 1, 2012
After eight years of R&D work, Inflotek B.V. (Beringe, The Netherlands; www.) is now commercializing a range of metal screens made with a proprietary, waterjet-cutting technology. Compared to conventional waterjet-cutting methods, Inflotek’s process can reliably make hundreds of perforations per hour, which enables the fabrication of industrial process screens with a large number of perforations...
http://www.chemengonline.com/chementator/A-new-process-for-making-screens_9356.html
June 1, 2012
India holds large reserves of low-grade sulfide copper ore containing 0.3 wt.% copper, which cannot be processed through conventional routes since the cut-off grade for treatment in concentrators is about 0.45 wt.%. India is in short supply of copper and an appropriate technology for processing low-grade ores would contribute to India’s economy. Accordingly, a team from the Institute of Minerals...
http://www.chemengonline.com/chementator/Winning-copper-from-low-grade-ore_9357.html
June 1, 2012
Electrochemical and chemical-precipitation technology from New Sky Energy (Boulder, Colo.; www.newskyenergy.com) allows the conversion of salty wastewater and CO2 from fluegas into valuable process chemicals, such as soda ash, calcium carbonate, sulfuric acid, bleach and other chemicals. New Sky’s customizable system is designed to be installed onsite at a processing facility to work with the...
http://www.chemengonline.com/chementator/Convert-wastewater-and-CO2-into-chemicals-with-this-technology_9358.html
June 1, 2012
Metals recovery Dinnissen Process Technology B.V. (Sevenum, The Netherlands; www.dinnissen.nl) has developed a purpose-built system to recover valuable metals — such as chrome and molybdenum — from highly viscous residual waste from the petrochemical industry. Such waste, which is often contaminated with wood, stone and iron particles, has been almost impossible to process, says the company...
http://www.chemengonline.com/chementator/June-Chementator-Briefs_9360.html
June 1, 2012
At Achema 2012 (June 18–22; Frankfurt am Main, Germany), Union Engineering A/S (Fredericia, Denmark; www.union.dk) will be presenting its patented FlashCO2 process — both at the exhibition (Hall 9.1, Stand E29) and in a congress lecture (Monday, June 18th at 11:30 in the room Illusion 2). FlashCO2 enables liquid CO2 to be produced from H2 plants at a direct operating cost of around...
http://www.chemengonline.com/chementator/A-less-expensive-process-to-recover-CO2-from-PSA-offgas_9362.html
June 1, 2012
The research groups of Masahiro Miyauchi at Tokyo Institute of Technology (www.eim.ceram.titech.ac.jp) and Kazuhiko Hashimoto at the University of Tokyo (www.light.t.u-tokyo.ac.jp) have developed a photocatalyst that is highly active for the destruction of volatile organic compoiunds (VOCs) using visible radiation. The catalyst, a culmination of a five-year project supported by New Energy and Industrial...
http://www.chemengonline.com/chementator/Visible-photocatalyst_9363.html
June 1, 2012
A partnership between Australian research agency CSIRO (Melbourne, Australia; www.csiro.au) and Lonza Group Ltd. (Basel, Switzerland; www.lonza.com), aims to market new insect silk products globally. Potential applications of insect silk include composite fibers for the aviation and marine industries, and medical applications such as wound repair, drug delivery, repairing and replacing human tissues such...
http://www.chemengonline.com/chementator/Manufacturing-bee-silk-with-bacteria_9367.html
June 1, 2012
Proterro Inc. (Princeton, N.J.; www. proterro.com) has demonstrated technology for directly producing sucrose as a feedstock for bio-based chemicals and biofuels that avoids the need for cellulosic biomass and energy crops. Using a genetically engineered strain of photosynthetic cyanobacteria and a unique photobioreactor system, Proterro is able to generate a clean...
http://www.chemengonline.com/chementator/A-non-crop-based-sugar-feedstock-for-bio-based-chemicals-and-biofuels_9369.html
June 1, 2012
A sensor that detects volatile organic compounds (VOCs) at levels of 10–100 parts per million (ppm) is being developed by Peratech Ltd. (Richmond, U.K.; www.peratech.com), with collaboration from the University of Durham (U.K.; www.dur.ac.uk). The so-called...
http://www.chemengonline.com/chementator/Detecting-VOCs-with-a-quantum-tunneling-composite_9371.html
June 1, 2012
For the first time, researchers from Riken (Saitama, Japan; www.riken.go.jp) have synthesized stable crystals (photo) of a so-called heavy ketone — a compound in which the carbon of the C=O bond is replaced by Si, Ge, Sn or Pb. These heavy ketones are highly reactive and prone to polymerization, which has made them difficult to synthesize and isolate to study...
http://www.chemengonline.com/chementator/The-first-synthesis-and-isolation-of-a-heavy-ketone_9372.html
June 1, 2012
A new process for removing oxides of nitrogen (NOx) from industrial foul-air and cool combustion exhaust uses ClO2 in a unique way to remove over 99% of both NO and NO2 with a single scrubbing stage. The reaction vessel is considerably smaller than those required by conventional wet-chemistry NOx removal processes, and according to the technology’s developer, Pacific Rim Design and Development (PRDD...
http://www.chemengonline.com/chementator/Chlorine-dioxide-single-stage-NOx-scrubbing-technology-lowers-costs_9373.html
June 1, 2012
A variety of performance problems can arise in distillation towers during startup. Many are caused by equipment, hardware or process conditions. Hardware issues may be related to instrumentation, tower internals or ancillaries. Instrumentation malfunctions are also common during startup and are predominantly related to liquid level indicators, online analysis of key components and in some cases...
http://www.chemengonline.com/chementator/petroleum_refining/Distillation-Avoid-Problems-During-Tower-Startup_9389.html
May 1, 2012
A new solid-state basic catalyst for forming carbon-carbon bonds has been developed by Masaru Ogura, an associate professor, and his research group at the Institute of Industrial Science, University of Tokyo (www.u-tokyo.ac.jp). The catalyst has been shown to accelerate the Knoevenagel...
http://www.chemengonline.com/chementator/Base-catalyzed-nucleophyllic-additions-with-a-modified-zeolite_9250.html
May 1, 2012
This month, Borregaard Industries Ltd. (Sarpsborg, Norway; www.borregaard.com) will start up an integrated, pilot-demonstration plant to further develop a new pretreatment process for converting biomass into lignin and fermentable sugars. Located at the company’s R&D Center in Sarpsborg, the pilot plant will convert up to two metric tons (m.t.) of feedstock per day. The fully integrated facility...
http://www.chemengonline.com/chementator/Scaleup-for-a-new-delignification-process_9252.html
May 1, 2012
A research team from the Institute for Photonics and Advanced Sensing, and the School of Chemistry and Physics, the University of Adelaide, South Australia (www.adelaide.edu.au) has combined suspended-core microstructured optical fibers (MOFs) with photoinduced electron transfer (PET) to demonstrate a new type of fluorescent optical fiber-dip sensor for small volume ion detection. Led by professor Tanya...
http://www.chemengonline.com/chementator/A-more-sensitive-sensor-for-ions-in-solution_9284.html
May 1, 2012
A catalyst in which iron atoms are complexed with the ligand pyridine diimine (PDI) has shown promise as a replacement for high-cost platinum-based catalysts for industrial olefin-hydrosilylation reactions. Developed by the research group of Paul Chirik at Princeton University (www. princeton.edu) and scientists at Momentive Performance Materials, Inc. (Waterford, N.Y.; www.momentive.com), the catalyst...
http://www.chemengonline.com/chementator/Iron-based-catalyst-shows-promise-for-alkene-hydrosilylations_9287.html
May 1, 2012
Double-effect coating Researchers at the Leibniz-Instutut für Neue Materialien GmbH (INM; Saarbrücken, Germany; www.inm-gmbh.de) have developed a nanocomposite coating that simultaneously protects against corrosion while having lubrication properties similar to grease and oil. The new material is suitable for coating metals (such as steel, Al, Mg) and metal alloys. To form the composite, the...
http://www.chemengonline.com/chementator/May-Chementator-briefs_9288.html
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