Carbon membranes: A new tool for gas separations
Article Abstract:
Carbon Membranes Ltd., based in Temed Industrial Park, Israel, has prepared carbon-made hollow-fiber membranes, which can be used in gas separations. The membranes, which can adapt to many uses, rely on molecular size. As a first step, the carbon material extracts fluoride gases from emissions of semiconductor facilities as these gases are costly and the subject of greenhouse-gas regulations. Another early use being anticipated is propane-propylene separation. Gil Dagan, Carbon Membrane's engineering manager, said there is no existing commercial procedure that could recover fluoride gases.
Comment:
Prepares carbon-made hollow-fiber membranes, which can be used in gas separations
Publication Name: Chemical Engineering
Subject: Engineering and manufacturing industries
ISSN: 0009-2460
Year: 1998
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Spent potliner: a new feedstock for glass fiber
Article Abstract:
Vortec Corp. of Collegeville, PA, a waste vitrification and recycling company, is working on a method that employs the cyclone melting system (CMS) to turn spent potliner (SPL) into glass fiber. SPL, a dangerous waste from electrolytic cells or pots used to produce aluminum, is composed of around 50% carbon, and sodium fluoride and carbonate, cryolite, aluminum oxide and as much as 0.5% cyanides. A Vortec official says this combination is ideal for glass manufacturing and its employment will reduce raw material expenses by 50%.
Comment:
Waste vitrification & recycling company works on method that uses cyclone melting system to turn spent potliner into glass fiber
Publication Name: Chemical Engineering
Subject: Engineering and manufacturing industries
ISSN: 0009-2460
Year: 1998
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Phthalates: into and out of the mouths of babes
Article Abstract:
The US Consumer Product Safety Commission (CPSC) and the European Union Scientific Committee for Toxicity, Ecotoxicity and the Environment (CSTEE) revealed that based on scientific researches, diisononyl phthalate (DINP) in children's toys endangers only a few, if any of the children exposed to it. The two groups however requested that a more thorough study of its carcinogenic effect on humans, and to relate the amount of phthalates children get from the toys with the length of time they chew DINP-containing toys.
Publication Name: Chemical Engineering
Subject: Engineering and manufacturing industries
ISSN: 0009-2460
Year: 1999
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