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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…

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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…

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These CeO2 nano-rods store a lot of O2 at low temperatures

Automobile catalytic converters contain cerium-based co-catalysts to enhance the overall effectiveness of the converter by absorbing and releasing oxygen to convert CO into CO2. Existing emission control systems typically use CeO2-based materials, such as solid solutions of ceria and zirconia,…

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Coral enhances the removal of mercury from wastewater

A convenient route for the fabrication of a bio-mimetic, coral-like nanoporous γ-Al2O3 with a higher capacity to adsorb Hg(II) in aqueous solution than those of commercial Al2O3, has been reported by a research group from Anhui Jianzhu University (Hefei City,…

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Alkylate process featuring a solid-acid catalyst can use multiple feedstocks

A recently announced process based on a novel solid-acid catalyst is effective at producing high-quality alkylate from a variety of feedstocks, including methanol. Technology developer Exelus Inc. (Fairfield, N.J.; www.exelusinc.com) says its technology converts methanol and mixed-butanes to high-octane alkylate.…

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Removing harmful metals from wastewater with crab shells

Copper and cadmium exist naturally in the environment, but human activity can increase their concentrations to a point where they become a health hazard. Conventional wastewater treatment to remove those metals includes chemical precipitation, coagulation, flocculation, ion exchange, membrane filtration,…

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A very efficient heat exchanger for very hot applications

At the end of last year, Mino Ceramics Co. (Nagoya City, Japan; www.mino-ceramic.co.jp) began shipping its first commercial high-temperature heat exchangers, which were developed in a project by Thermal Management Materials and Technology Research Assn. (TherMAT, Tokyo, Japan; www.thermat.jp). Developed…

Chementator Briefs

PET recycling Polyethylene terephthalate (PET) can be quickly depolymerized into virgin monomers using a patented process that was developed, and is being scaled up by Ioniqa Technologies BV (Eindhoven, the Netherlands; www.ioniqa.com). The company recently finalized a multi-million-euro funding round…

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A step forward for bio-based butadiene

Increased use of ethane from shale deposits as a feedstock for ethylene production has focused attention on the growing need for on-purpose production of butadiene, which has traditionally been produced primarily as a byproduct of conventional ethylene production from naphtha.…

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A hybrid solar cell that utilizes waste heat to boost efficiency

Scientists from Yonsei University (Seoul, South Korea; www.yonsei.ac.kr) led by Prof Eunkyoung Kim, have developed a hybrid solar cell to enhance the photo-conversion efficiency of a solar cell with a thermoelectric device operated by photothermally generated heat. The efficiency was…