Chementator
Graphene-based membranes
Graphene has received much attention as material for membranes due to its high surface area, high mechanical strength and chemical stability. Graphene-based membranes are also expected to exhibit much greater permeability than the current state-of-the-art membranes. However, it has been…
Making more carbon fibers for less
An efficient, energy-saving process for making carbon fibers (diagram) is being developed by a collaboration team of the University of Tokyo, the Institute of Industrial Science and Technology (AIST), Toray Industries, Inc., Teijin Ltd., Toho Tenax Co. and Mitsubishi Rayon…
Extracting platinum metals
The traditional method for recovering platinum-group metals (Pt, Pa, Ir, Os, Rh, Ru and Au) is not economically viable in the case of low-grade deposits, but researchers from the Western Australian School of Mines, Curtin University (Perth; www.curtin.edu.au) and the…
Collaboration lowers cost for bio-based FDME process
A partnership between DuPont Industrial Biosciences (Wilmington, Del.; www.dupont.com) and Archer Daniels Midland Co. (ADM; Chicago, Ill.; www.adm.com) has developed a less costly and more efficient process for producing bio-based furan dicarboxylic methyl ester (FDME) from the six-carbon sugar fructose.…
Making aerogel absorbants from wastepaper
A team from the National University of Singapore (www.nus.edu.sg), led by assistant professor Duong Hai Minh from the Dept. of Mechanical Engineering, has succeeded in converting paper waste into cellulose aerogels that are nontoxic, ultralight, flexible, extremely strong, and water…
Chementator Briefs
Bio-Hydrogen Scientists at Indiana University (IU; Bloomington, Ind.; www.iu.edu) have created a highly efficient biomaterial that catalyzes the formation of hydrogen from water. The biomaterial could be used to produce H2 or generate power from H2 in a fuel cell.…
Using air and hydrostatic pressure to store energy underwater
Consisting of a land-based mechanical facility and underwater pipelines and accumulators, the underwater compressed-air energy-storage (UCAES) system from Hydrostor Inc. (Toronto, Ont., Canada; www.hydrostor.ca) takes electricity (potentially excess solar or wind energy) and uses it to run a compressor, which…
Oil-free compressed air at a fraction of the cost
The recently commercialized high-speed turbo (HST) compressors from BOGE Kompressoren Otto Boge GmbH & Co. KG (BOGE; Bielefield, Germany; www.boge.de) produce 100% oil-free (Class 0) compressed air at the highest degree of efficiency and with minimal maintenance effort, according to…
Polymer-reaction monitoring
There are many critical parameters that are important to monitor and measure in industrial polymer reactions, including molecular weight, viscosity and residual monomer concentration. Typically, polymer reactions are characterized offline and intermittently in a quality-control laboratory, or via inferential models…
A ‘greener’ route for making red pigments
Early this year, Lanxess AG (Cologne, Germany; www.lanxess.com) will start production of bright red iron-oxide pigments at its Ningbo, China production site. The production facility will utilize — for the first time — the Ningbo Process, a highly sustainable production…