Mitsubishi Chemical Corp. (Tokyo; www.m-kagaku.co.jp/index_en.htm) has developed a plate-in-frame reactor for performing oxidation reactions, such as for the partial oxidation of propane to form acrylic acid. Because of the reactor’s enhanced heat transfer to the catalyst — sandwiched between the…
AkzoNobel Polymer Chemicals LLC (Chigago, Ill.; www.akzonobel.com/polymer) has launched Perkalite, a new range of synthetic, layered double-hydroxide (LDH) organoclays. With proper compounding, the LDH organoclays delaminate to nanoscale sizes and form a true nanocomposite, says the company. Perkalite nanocomposites feature…
Last month, Uralchem OJSC (Moscow, Russia; www.uralchem.com) started production of a new fertilizer, called ASN 32:0:0:5, at Kirov-Chepetsk Chemical Works, OSJ. Granules of the new ASN formulation have a gradient structure with a high concentration of ammonium sulfate on the…
Laminar Pipe Flow For steady flow in a pipe (whether laminar or turbulent), a momentum balance on the fluid gives the shear stress at any distance from the pipe centerline. In Equation (1), Φ = P + ρ gz. The…
NanoEthics: The Ethical and Social Implications of Nanotechnology. Edited by Fritz Allhoff, Patrick Lin, James Moor, John Weckert. John Wiley and Sons, Inc. 111 River St., Hoboken, NJ 07030. 2007. 385 pages, $39.95, paperback. Reviewed by Christopher M. Kelty, Department…
Training and Parts Aid in Compressed-Air System Maintenance This company is offering a free interactive Air System Maintenance CD that details common maintenance functions for rotary screw compressors, refrigerated and desiccant dryers, filters and drains. Using instructional video, voice…
A new pilot reactor — claimed to be the world’s first, complete two-step supersonic reactor — for producing nanoparticles has started operation at the Technology Service Center of the Wolfgang Industrial Park (IPW) GmbH, a subsidiary of Evonik Industries AG…
Researchers at the Max-Planck-Institut für Kohlenforschung (Mülheim, Germany; www.mpi-muelheim.mpg.de/kofo) have demonstrated that solid acids are powerful catalysts for the hydrolysis of cellulose dissolved in an ionic liquid. Even the cellulose fraction of wood, which is predominantly lignocellulose, can be hydrolyzed…
Uhde GmbH (Dortmund, Germany; www.uhde.biz) has commercialized a new gasifier design, the Prenflo (pressurized entrained-flow) with Direct Quench (PDQ) process, which is an optimized design of its Prenflo PSG gasification process for applications requiring hydrogen-rich syngas generation (ammonia, methanol, H2,…
Researchers at the Dalian Institute of Chemical Physics (China; www.english.dicp.ac.cn) and the University of Delaware (Newark; www.che.udel.edu) are developing a tungsten-carbide/nickel catalyst that degrades cellulose into polyols at 245°C and 60 atm. The catalyst is believed to facilitate hydrolysis and…