首页> 外国专利> Winning zinc, copper and cadmium from ferrites - by hydrometallurgy, precipitating iron as jarosite and controlling the jarosite content in the first part of the ferrite treatment stage

Winning zinc, copper and cadmium from ferrites - by hydrometallurgy, precipitating iron as jarosite and controlling the jarosite content in the first part of the ferrite treatment stage

机译：从铁素体中获取锌，铜和镉-通过湿法冶金，沉淀铁作为黄铁矿，并在铁素体处理阶段的第一阶段控制黄铁矿的含量

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The ferrites are treated in a sulphuric acid contg. soln. in the presence of K-, Na- or ammonium ions at 80-105 degrees C under atm. condition to ppt. Fe in the form of jarosite. The jarosite contg. solids are sepd. from the soln., which is recycled to the neutral leaching stage in which the original roast prod. is leached and from which a Zn, Cu and Cd contg. soln. is obtd., while the ferrite contg. solids are fed to stage, a fraction of the jarosite contg. solids formed in the ferrite treatment stage are recycled to the process. The jarosite concn. is 50-400 G/l (200-300 g/l) in the first part of the ferrite stage. The method gives a redn in the time required for the ferrite treatment stage.

机译：铁素体在浓硫酸中处理。 soln。在大气压下于80-105摄氏度下存在K-，Na-或铵离子。 ppt的条件。铁的黄铁矿形式。黄钾铁矾续。固体分离。从溶液中回收，再回收到原始焙烧产品的中性浸出阶段。从中浸出锌，铜和镉。 soln。过时，而铁氧体则在继续。将固体进料到阶段，即黄钾铁矾含量的一部分。在铁素体处理阶段形成的固体被循环到该过程中。黄钾铁矿浓缩物。在铁素体阶段的第一阶段为50-400 G / l（200-300 g / l）。该方法使铁素体处理阶段所需的时间变红。

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公开/公告号DE2708059A1

专利类型
公开/公告日1977-09-01

原文格式PDF
申请/专利权人 OUTOKUMPU OY;
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申请/专利号DE19772708059
发明设计人 PEDERDIPL.-ING. FUGLEBERGSIGMUND;ENSIO JAERVINENAIMO;JOHANNES KARPALEKAUKO;KALEVIDR.TECHN. RASTASJUSSI;
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申请日1977-02-24
分类号C22B3/00;
国家 DE
入库时间 2022-08-22 23:57:36

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