...(1) Pyrometallurgical smelting method This method involves roasting zinc concentrate to produce zinc oxide (ZnO), which is then reduced with carbon material, and the zinc is volatilized and recovered to produce distilled zinc. An example of the analytical values of the calcined ore obtained in this way is shown in the table. Dry methods include horizontal retort distillation, vertical retort distillation, electric heat distillation, and the ISP (Imperial Smelting Process). With the exception of the ISP method, all of these methods involve reducing sintered lump with solid carbon, volatilizing the zinc, and condensing and recovering it in a condenser. ... *Some of the terminology used in relation to the "ISP Act" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…(1)乾式製錬法 亜鉛精鉱を焙焼(ばいしよう)して酸化亜鉛ZnOとし,これを炭素材で還元し,亜鉛を揮発回収して蒸留亜鉛を作る方法で,このようにして得られた焼鉱の分析値の一例を表に示す。乾式法には,水平レトルト蒸留法,立形レトルト蒸留法,電熱蒸留法,ISP法(Imperial Smelting Process)などがある。ISP法を除けば,いずれも焼結塊を固体の炭素で還元して,亜鉛を揮発し,コンデンサーで凝縮回収する方法である。… ※「ISP 法」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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