Spherical support for olefin polymerizat
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Article
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2009
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Elsevier Science
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## US labour union seeks end to HF in refineries The United Steelworkers union is appealing for a phaseout of hydrogen fluoride (HF) alkylation units in the USA for safety reasons. The National Petrochemical & Refiners Association opposed the call, arguing that HF is safe like other catalysts and