Chemical Engineering
AccountGuest Edition My Account My Che.com Log In

Archives :: Chementator

Displaying 161 - 180 of 938 stories.
May 1, 2013
The research groups of Keiichi Fujishige at Tohoku University (Sendai, www.che.tohoku.ac.jp/~erec) and Daicel Corp. (Osaka, both Japan; www.daicel.com) have developed a process for making 1,3-propanediol (1,3-PDO) from glycerin, a byproduct of biodiesel-fuel production. The researchers improved a catalyst developed by Fujishige to be applied to a rather simple reaction process. They are expecting that...
http://www.che.com/chementator/Making-13-PDO-from-glycerin_10446.html
May 1, 2013
  Heap-leaching for REs Studies conducted by Texas Rare Earth Resources Corp. (Sierra Blanca, Tex.; www.trer.com) indicate that heap leaching with 15% (~150 g/L) sulfuric acid has the potential to dissolve minerals containing rare-earth (RE) elements from host rock at an RE mineral site near El Paso, Texas. Research conducted by the heavy RE exploration company on the minerology, geochemistry and...
http://www.che.com/chementator/May-Chementator-Briefs_10447.html
May 1, 2013
The Circa Group (Melbourne, Australia; www.circagroup.com.au) and the Green Chemistry Center of Excellence at the University of York (U.K.; www.york.ac.uk) have signed an agreement to develop and commercialize a novel “green” solvent called Cyrene. Cyrene is a polar aprotic solvent — a solvent that lacks an acidic hydrogen and has a high dielectric constant and a high dipole moment...
http://www.che.com/chementator/A-step-closer-to-commercialization-for-a-new-green-solvent_10449.html
May 1, 2013
Although several antimicrobial hydrogels have been developed in recent years, they all have one or more drawbacks, such as possible toxicity, insufficient stability and biodegradability, and high costs. These and other drawbacks have been overcome with a synthetic hydrogel being developed by researchers from the Institute of Bioengineering and Nanotechnology (Singapore; www.ibn.a-star.edu.sg) and IBM...
http://www.che.com/chementator/Bioengineers-make-an-ideal-hydrogel-for-antimicrobial-applications_10450.html
May 1, 2013
The first commercial application of a newly developed process for the treatment of oxides of nitrogen (NOx) waste gas has been established at a milling operation in Los Angeles, Calif. Developed by Pacific Rim Design and Development (PRDD; Reno, Nev.; prdd.net), along with DuPont (Wilmington, Del.; www.dupont.com), the process uses gas-phase chlorine dioxide to react with both NO and NO2 to form nitric and...
http://www.che.com/chementator/Gas-phase-option-for-NOx-abatement_10451.html
May 1, 2013
Last month, Air Products (Allentown, Pa.; www.airproducts.com) announced that it has licensed its proprietary adsorption-based, monomer recovery process to custom process equipment supplier Cryo Technologies (Allentown, Pa.; www.cryotechnologies.com). The hybrid Air Products technology combines a partial condensation unit with a pressure-swing adsorption (PSA) process to recover unreacted ethylene and...
http://www.che.com/chementator/A-waste-free-monomer-recovery-process-is-licensed_10453.html
May 1, 2013
A team of researchers from Novasep (Pompey, France; www.novasep.com) has discovered and characterized the explosive properties of the so-called Togni reagent II and intermediates at the Novasep Leverkusen site in Germany. Invented by professor Antonio Togni at the Laboratory of Inorganic Chemistry, ETH Zürich (Switzerland; www.eth.ch) Togni reagent II...
http://www.che.com/chementator/Togni-reagent-is-reclassified_10454.html
April 1, 2013
A process developed by researchers at the University of Texas at Arlington (www.uta.edu) uses copper-based semiconductor nanoscale-rod arrays and solar radiation to carry out a photoelectroreduction of carbon dioxide to methanol. The process offers a pathway to utilize the greenhouse gas CO2 as a feedstock to synthesize a widely manufactured chemical...
http://www.che.com/chementator/Simplified-CO2-to-methanol-process-uses-copper-oxide-nanowires_10364.html
April 1, 2013
Following a positive feasibility study, American Vanadium Corp. (Vancouver, B.C.; www.americanvanadium.com) will construct the world’s first sulfuric acid heap-leach mining operation for vanadium at a specific geologic formation in central Nevada, known as Gibellini Hill. The project is currently in the permitting and mine-engineering stage, and...
http://www.che.com/chementator/First-application-of-sulfuric-acid-heap-leach-to-vanadium_10365.html
April 1, 2013
A newly launched gas chromatography (GC) device from Analytical Pixels Technology (APIX; Grenoble, France; www.apixtechnology.com), called GCAP, uses a nanoscale silicon-beam resonator to detect mass. A piezoelectric cross-beam initiates the vibration of the nanoscale silicon resonator, and the resonance frequency varies with the mass in contact with the silicon resonator. Because GCAP’s architecture...
http://www.che.com/chementator/New-GC-based-on-resonating-nanosensor_10367.html
April 1, 2013
Ken-ichi Tominaga and colleagues at the National Institute of Advanced Industrial Science and Technology (AIST; Tsukuba, Japan; www.aist.go.jp) have developed a hybrid catalyst system that can be used to convert cellulose into levulinic acid. The catalyst consists of two types of acid: indium(III) trifluoromethanesulfonate (In(OTf)3), a Lewis acid; and p-toluenesulfonic acid...
http://www.che.com/chementator/A-hybrid-acid-catalyst-makes-levulinate-from-cellulose_10368.html
April 1, 2013
Detection of extremely small quantities of dangerous or hazardous substances is important in many areas, including national security, safety of public utilities and radiation prevention. Several analytical methods have been developed using structural, functional and electronic properties of nanomaterials. In particular, noble-metal quantum clusters (QCs), a family of nanomolecules exhibiting intense...
http://www.che.com/chementator/Quantum-clusters-serve-as-ultra-sensitive-detectors_10369.html
April 1, 2013
A new and inexpensive way to produce TiFe — an alloy with potential as a material for reversibly storing hydrogen — has been developed by the research groups of professors Zenji Horita and Etsuo Akiba at Kyushu University (Fukuoka, Japan; www.kyushu-u.ac.jp). The TiFe is made by a technique known...
http://www.che.com/chementator/A-method-to-produce-an-iron-titanium-alloy-for-H2-storage_10371.html
April 1, 2013
Capacitive desalination, in which salt ions are electrically removed from saltwater, has been researched for decades as a potentially cheaper alternative to energy-intensive reverse osmosis (RO) and distillation, but so far its application has been limited to waters with very low salt concentrations. A new method, which may change that, is being developed by researchers at Lawrence Livermore National...
http://www.che.com/chementator/A-new-way-to-desalt-water-without-using-RO-or-distillation_10372.html
April 1, 2013
An Australian team has developed a structure made of a metal organic framework (MOF) that captures and then releases CO2 using natural sunlight. The team includes researchers from: CSIRO Division of Materials Science and Engineering, (Clayton South, Victoria; www.csiro.au) the Dept. of Chemical Engineering, Monash University (www.monash.edu.au) and the School of Chemistry, University of Sydney...
http://www.che.com/chementator/MOFs-that-reversibly-capture-CO2_10376.html
April 1, 2013
  Biosteel The worlds first artificial-silk fiber that is entirely made of recombinant spider-silk proteins has been produced by AMSilk GmbH (Planegg/Martinsreid, Germany; www.amsilk.com), a spin-off company of the Technical University of Munich. The fibers tensile strength is comparable to that of natural spider silk, and has thus been tradenamed Biosteel. Fiber prototypes are smooth to the touch...
http://www.che.com/chementator/April-Chementator-Briefs_10377.html
April 1, 2013
A new plant for manufacturing sodium silicide (Na4Si4;diagram), a non-flammable, air-stable powder that reacts with water to generate pure hydrogen, is under development near Niagara Falls, N.Y. by SiGNa Chemistry Inc. (New York; signachem.com). Scheduled for startup in the third quarter of 2013, the facility will produce 1,000 ton/yr of sodium silicide using a proprietary thermal process that was...
http://www.che.com/chementator/Production-facility-for-stabilized-sodium-slated-for-startup_10378.html
March 1, 2013
Microwave irradiation of graphite has been shown to produce graphene oxide with 90% yield by the research group of professor Yuta Nishina, Research Core for...
http://www.che.com/chementator/Making-graphene-oxide-in-a-microwave_10242.html
March 1, 2013
Conventional methanation — the reaction of CO and H2 (synthesis gas) to form methane — has recently become important as a way to produce substitute natural gas (SNG) from gasified coal in regions of the world where natural gas is scarce (see Chem. Eng., August 2010, pp. 14–17). Now, an alternative methanation process, which produces CH4 directly from CO2 and H2, has been developed by...
http://www.che.com/chementator/A-renewable-source-for-methane_10243.html
March 1, 2013
A team from Monash University (Melbourne, Australia; www.monash.edu.au) has prepared graphene monoliths with a cork-like hierarchical structure, exhibiting ultra-low density, superelasticity, good electrical conductivity and high efficiency of energy absorption. The ability to maintain structural integrity upon large deformation is important for many emerging applications, such as flexible electronic...
http://www.che.com/chementator/Making-cork-like-monoliths-from-graphene_10248.html
Pages: « Previous  1 2 3 4 5 6 7 8 [9] 10 11 12 13 14 15 16 17 18 Next »

Get more from Che.com
Get email updates in your inbox

 

Subscribe to:
Chemical Engineering Magazine

Chemical Engineering Magazine and Archives

Plant Cost Index

Join us on... Twitter LinkedIn

LinkedIn Groups

Our LinkedIn group is now over 26,000 members strong!

  1. Join other CPI professionals from all over the globe and share best practices, expertise, concerns and more.
  2. Provide feedback to Chemical Engineering Editors


Current members represent Worley Parsons, DuPont, SABIC, Fluor, Air Products, LyondellBasell, Nalco, Dow Chemical, Dow Corning, BASF, Jacobs Engineering, ExxonMobil, Shell, Chevron and more.

Join Now



We also offer the following subgroup for more targeted discussions:

Tools
Search the Buyers' Guide

Plant Cost Index

Facts at Your Fingertips (archive)

Ask the Experts

Back Issues
X
To access this area, please log in or create an account.
Username:
Password:
Forgot your password?
Request it now.
Processing...
Live chat by BoldChat