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Deacon process
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{{Short description|Industrial process}} The '''Deacon process''', invented by [[Henry Deacon (industrialist)|Henry Deacon]], is a process used during the [[manufacture]] of [[alkali]]s (the initial end product was [[sodium carbonate]]) by the [[Leblanc process]]. [[Hydrogen chloride]] gas was converted to [[chlorine]] gas, which was then used to manufacture a commercially valuable [[bleaching powder]], and at the same time the emission of waste [[hydrochloric acid]] was curtailed. To some extent this technically sophisticated process superseded the earlier [[manganese dioxide]] process.<ref name=chlorine/>
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