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Processing & Handling

A new PET resin

Eastman Chemical Co. (Kingsport, Tenn.; edlinks.chemengonline.com/6519-549) has launched its next-generation PET (polyethylene terephthalate) resin, tradenamed ParaStar, which is made using the company’s proprietary IntegRex technology (CE, October 2004, p. 15). ParaStar is a drop-in replacement for standard PET on bottle-manufacturing…

Stay-clean surfaces

Surfaces treated with Top on Top — a new surface refinement technology developed by Degussa AG (Düsseldorf, Germany; edlinks.chemengonline.com/6519-552) — are easy to clean and remain clean for months, according to Degussa. The product consists of two components that when…

This catalyst converts cellulose into sugar alcohols

Cellulose accounts for about 40% of the planet’s total photosynthesis yield (about 1.8 trillion m.t./yr), but the material has not been fully utilized as a chemical resource so far. That’s because the methods currently available for converting cellulose into useful…

A cleaner way to remove olefins from aromatics

ExxonMobil Chemical Technology Licensing LLC (Houston, Tex.; edlinks.chemengonline.com/6518-541) has commercialized its new Olgone technology, a catalyst-based process for removing olefins from aromatic streams. If not removed, such olefinic materials interfere with downstream equipment, adsorbents, sieves and catalysts, says the company.…

Progress on H2O2-based process to make PO

Last September, construction commenced on the world's first commercial-scale hydrogen peroxide, propylene oxide (HPPO) plant at the Antwerp, Belgium, site of BASF AG (Ludwigshafen, Germany; edlinks.chemengonline.com/6518-542). The 300,000 m.t./yr facility is a joint venture of BASF and Dow Chemical Co.…

Air separation: Mature processes, modern improvements

      The fortunes of many an industrial sector have risen and fallen in the face of fluctuating oil and gas prices. Today, the industrial gas industry’s fortunes are being buoyed — in a roundabout way — by the…

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Making Emulsions

        When Estee Lauder begin stirring up recipes for facial creams recipes in her kitchen some 70 years ago — the start of a $6.5-billion cosmetics empire that still bears her name — making high-purity emulsions was…

This efficient micromixer is less prone to fouling

By repetitive dividing and merging of laminar flows within complex patterns of narrow (25–40 µm) channels, static micromixers are very efficient at making homogeneous mixtures. However, the narrow channels are susceptible to clogging, and the cost to precisely manufacture the…

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Specifying CPVC In Chemical Process Environments  

    Since its introduction to the market in 1959, chlorinated polyvinyl chloride (better known as CPVC) has proven suitable for use in a wide variety of chemical process environments. Because it is inert to most mineral acids, bases, salts…

New electrolysis technology scaled up for Shanghai’s integrated-petrochemical complex

Construction is underway on what is said to be the world's largest hydrogen chloride recycling plant, for Bayer MaterialScience AG (BMS; Leverkusen, Germany; edlinks.chemengonline.com/6517-536). When the unit starts up in 2008 at the Shanghai, China site, it will produce 215,000…