Fuming

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Fuming

a method of recovering volatile components from fused slags containing zinc, lead, or tin. Slags containing lead and zinc are blasted with a coal and air mixture at 1200°–1250°C to reduce the oxides of lead and zinc; natural gas may be used in place of coal dust in the mixture. The metal vapors are removed with the gases and react with carbon dioxide to form oxidized sublimates; after being cooled in a waste-heat boiler, the sublimates are recovered in bag filters. The process is carried out in a rectangular shaft furnace equipped with 40–50 tuyeres. In order to obtain pure zinc oxide and to separate the lead oxides from it, the sublimates are roasted in a rotary furnace. When tin-bearing slags are fumed, the tin is removed as the volatile sulfide.

REFERENCE

Osnovy metallurgii, vol. 2. Moscow, 1962. Pages 415–21.

M. M. LAKERNIK

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No references found			From that moment it had never shown itself to their eyes-- a disappearance all the more easily explained, as it was then passing behind the moon's invisible disc; but when it was time for it to reappear on the visible disc, one may imagine the impatience of the fuming J. Round The Moon by Verne, Jules View in context The stage-manager walked away, shrugging his shoulders, fuming, muttering insults at those milksops who remained quietly squatting in a corner while the whole theater was topsyturvy{sic}. The Phantom of the Opera by Leroux, Gaston View in context My lord Bishop of Hereford was stuck up in the organ-loft and left, gownless and fuming. Robin Hood by McSpadden, J. Walker View in context			Fulton Fulton County Fulton Mansion State Historic Site Fulton's Folly Fulton, Robert Fults Hill Prairie & Kidd Lake State Natural Areas fulvene Fulvia fum fumagillin fumarase Fumaria Fumariaceae fumaric acid Fumarole fumble fume fume hood fumed oak fumes Fumigant fumigating Fumigation Fumigator Fumimaro Konoe Fuming fuming nitric acid fuming sulfuric acid fumitory fumulus Fun Funabashi Funafuti funal Funan Funariales Funchal Function function application function call function code function complete function failure safety Function Generator Function Graph Language function hole function inlining function key function library function multiplier function overloading			fumigated fumigates fumigates fumigates fumigating fumigating fumigating fumigating fumigation fumigation fumigation fumigation fumigations fumigations fumigations fumigations fumigator fumigator fumigator fumigator fumigators fumigators fumigators Fumigatory Fumiko Hayashi (author) Fumily Fumimaro Konoe Fumimaro Konoe Fumimaro Konoye Fumimaro Konoye Fuming Fuming liquor of Libavius fuming nitric acid Fuming sulfuric acid Fuming sulfuric acid Fuming sulfuric acid Fuming sulphuric acid Fumingly Fumish Fumishness Fumisterie Industrielle Bernard Trouilloud Fumiter fumitories fumitories fumitories fumitory fumitory fumitory fumitory family fumitory family fumitoxin fumitremorgen FUMLP FUMLUB FUMMC Fummel FUMMS FUMMWA FUMO Fumo Luoco fumonisin

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REFERENCE

Fuming