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August 1, 2007
Alumina refining by the Bayer process involves the digestion of bauxite ore with caustic soda, which produces “green liquor,” from which alumina is recovered, and a bauxite residue, called red mud, which is stored in large disposal areas. A typical refinery (2-million m.t./yr) produces about 1.4 tons of bauxite-residue per ton of alumina recovered, which translates into about 2.8-million m.t./yr of red...
http://www.chemengonline.com/news/An-economical-way-to-extract-more-alumina-from-bauxite_3302.html
August 1, 2007
A research team from Austria and Sweden have demonstrated that nanowires of a nickel-rhodium alloy exhibit a suprisingly high reactivity to oxygen. Using physical vapor deposition, the researchers have produced quasi one-dimensional rows of Ni atoms on a single-crystal rhodium substrate, which has Rh steps...
http://www.chemengonline.com/news/Ni-Rh-nanowires-show-promise-as-new-catalysts_3303.html
August 1, 2007
What is billed as the first commercial-scale plant to produce ethanol from cellulosic feed will be built in Treutlen County, Georgia, by Range Fuels, Inc. (Broomfield, Colo.; edlinks.che.com/6898-541). The company received a construction permit from the State of Georgia last month and will shortly break ground for the plant. Scheduled for completion...
http://www.chemengonline.com/news/Commercialization-is-set-for-a-cellulose-to-ethanol-process_3304.html
August 1, 2007
Crossflow (CF) filtration is widely used for separating substances with poor filtration properties. As the method’s name implies, a crossflow of the feed continuously flows across the filter membrane in order to wash away material accumulations that clog the membrane pores. Nevertheless, conventional methods rely on a pump to adjust the feed overflow rate, which requires substantial energy, even for...
http://www.chemengonline.com/news/Slash-energy-consumption-with-this-new-crossflow-filtration-process_3305.html
August 1, 2007
This system, which has multiple reactors and uses microwaves for heating, has been developed by professor Yuji Wada at the Graduate School of Science and Engineering, Tokyo Institute of Technology (edlinks.che.com/6898-543), in cooperation with Shikoku Instrument Co. (Takamatsu; edlinks.che.com/6898-544) and Sanko Kagaku Kogyo Co. (Tokyo; all Japan; edlinks.che.com/6898-545). A prototype of the system has...
http://www.chemengonline.com/news/New-reactor-system-makes-products-faster-without-a-solvent_3306.html
August 1, 2007
Last month, Hexion Specialty Chemicals, Inc. (Columbus, Ohio; edlinks.che.com/6898-546) signed a definitive agreement to acquire Huntsman Corp. (Salt Lake City, Utah)...
http://www.chemengonline.com/news/Major-M&As_3307.html
August 1, 2007
Dow Chemical Co. (Midland, Mich.; edlinks.che.com/6898-548) and Crystalsev (São Paulo, Brazil; edlinks.che.com/6898-549) are forming a joint venture in Brazil to design and build...
http://www.chemengonline.com/news/Sugar-to-PE_3308.html
August 1, 2007
At the end of June, Wuxi NutriRice Co. Ltd. — a joint venture of DSM (Sittard, Netherlands; edlinks.che.com/6898-550) and Bühler AG (Uzwil, Switzerland; edlinks.che.com/6898-551) — opened the world’s first...
http://www.chemengonline.com/news/Nutritious-rice_3309.html
August 1, 2007
Wacker Chemie AG (Munich, Germany; edlinks.che.com/6898-552) plans to build the first commercial-scale plant for the production of granular polysilicon for the solar industry at its Berghausen, Germany, site. The 650-m.t./yr facility...
http://www.chemengonline.com/news/Solar-polysilicon_3310.html
August 1, 2007
Lonza (Basel, Switzerland; edlinks.che.com/6898-553) has commercialized an online monitoring system, called PyroSense...
http://www.chemengonline.com/news/Endotoxin-detection_3311.html
August 1, 2007
Solvay Solexis, a subsidiary of Solvay S.A. (Brussels, Belgium; edlinks.che.com/6898-554), and Thin Film Electronics ASA (Oslo, Norway) are cooperating to develop materials for...
http://www.chemengonline.com/news/Printed-electronics_3312.html
August 1, 2007
    Gone are the days of one-size-fits-all engineering software packages. Today, solution providers offer versions with improved integration for advanced data sharing and simplified user interfaces with the ability to multitask between the design house and the plant floor, bringing the power of engineering software to everyone from trained experts to software novices who just want to run a few...
http://www.chemengonline.com/news/Engineering-Software-Makes-the-Leap-From-the-Masters-to-the-Masses_3330.html
August 1, 2007
    In the chemical process industries (CPI), pressure is constantly on to improve filtration. The filtration step has to be performed quickly (time is money), efficiently (product loss is money lost), and effectively (energy costs for pumping and drying are soaring). As a result, vendors of filtration equipment — be it for dust removal from fluegas or product recovery from a gas or liquid...
http://www.chemengonline.com/news/Filtration-in-the-spotlight_3331.html
July 1, 2007
Although brown coal accounts for about 25% of Australia’s energy supply, it has a high moisture content and, when burned, is a high emitter of carbon dioxide (above 1,200kg/MWh). To address this challenge HRL Ltd. (Melbourne, Australia; edlinks.che.com/6897-531) has developed a variant of integrated-gasification, combined-cycle (IGCC) technology, called IDGCC (integrated drying and gasification...
http://www.chemengonline.com/news/A-new-type-of-coal-fired-IGCC-power-plant-to-be-demonstrated_3282.html
July 1, 2007
A dehydration process — which uses about half the energy required by thermal methods for drying brown coal or sludge — is being developed by the Central Research Institute of Electric Power Industry (Tokyo, Japan; edlinks.che.com/6897-532). The process uses liquefied dimethyl ether (DME) as the dehydrating agent, taking advantage of the ether’s properties: namely, DME has a low boiling...
http://www.chemengonline.com/news/Liquified-DME-cuts-energy-costs-for-dehydrating-solids_3283.html
July 1, 2007
Hydrogen is produced directly from biomass and other carbonaceous materials, with simultaneous capture of carbon dioxide, in a process being developed by Energy Quest, Inc. (Edmonton, Alta., Canada; edlinks.che.com/6897-533). In the PyStR (pyrolytic steam reforming) process, crushed or shredded feedstock and steam are fed directly into a circulating bed of calcium oxide. The fuel is pyrolized at about...
http://www.chemengonline.com/news/This-pyrolysis-process-coproduces-hydrogen-and-carbon-dioxide_3284.html
July 1, 2007
Global Resource Corp. (GRC; West Berlin, N.J.; edlinks.che.com/6897-534) is commercializing a technology that converts auto shredder residue (ASR) into combustible gases, liquid fuels and scrap metal using microwaves. The use of microwaves to achieve this goal has been attempted in the past, but GRC is one of the first to succeed at an economically viable level, says GRC’s chief engineer Hawk Hogan. Unil...
http://www.chemengonline.com/news/An-emissions-free-recycling-machine-that-converts-auto-scrap-into-fuel_3285.html
July 1, 2007
Paques B.V. (Balk, Netherlands; edlinks.che.com/6897-535) has developed a cost-effective biological process (flowsheet) for removing phosphates and nitrogen from wastewater. The first commercial installation to use the new process officially opened last month at Aviko (Steenseren, Netherlands), where it is treating 3,000 m3/d of wastewater from potato processing. The plant is owned and operated by...
http://www.chemengonline.com/news/A-commercial-debut-for-a-new-process-that-removes-phosphates-and-nitrogen-from-wastewater_3286.html
July 1, 2007
Max Planck Innovation GmbH (Garching by Munich; edlinks.che.com/6897-536), the technology transfer agency of the Max Planck Society, has signed a co-exclusive license agreement with Leica Microsystems (Wetzlar) and Carl Zeiss MicroImaging GmbH (Göttingen, all Germany) for the RESOLFT (reversible saturable optical fluorescence transitions) technology, a method for providing molecular-scale resolution...
http://www.chemengonline.com/news/German-scientists-overcome-100-year-old-law-of-physics_3287.html
July 1, 2007
Techno Bank Co., Ltd. (Tokyo, Japan; edlinks.che.com/6897-537) has developed a new supply, storage, and transport system for safely handling a high capacity of hydrogen in fuel-cell applications. The system — a cassette containing nano-sized powder of magnesium hydride (MgH₂) — is said to be safer than alternatives, such as insulated cylinders of liquid H₂ at 700 bar. Other methods being...
http://www.chemengonline.com/news/Putting-MgH2-in-your-fuel-tank_3288.html
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