公开(公告)号：WO1998015666A1

公开(公告)日：1998-04-16

申请号：PCT/EP1997005463

申请日：1997-10-06

Applicant: RUHR-ZINK GMBH ,  SMYKALLA, Günter ,  PÜLLENBERG, Reinhard ,  SCHULZE, Jürgen

Inventor： RUHR-ZINK GMBH

IPC: C22B19/20

CPC classification number: C22B7/007 ,  C22B7/006 ,  C22B19/22 ,  C22B19/28 ,  C22B19/30 ,  Y02P10/234

Abstract: The invention relates to a process for obtaining zinc and other precious metals from raw materials containing chlorine or fluorine. According to said process raw materials are lyed with sulfuric acid without calcination and metals are separated electrolytically from the purified metallic salt solution. This novel process is economical because it removes chlorines and fluorines by feeding milling oxides to an alkaline lye stage with soda at 120 DEG C and making the halogenides soluble in water, the dissolved halogenides are washed out with water from milling oxides, milling oxydes with a low content of halogenides are lyed in sulfuric acid or cellular acid, and metals are separated from the obtained solution by electrolysis after purification.

Abstract translation: 本发明涉及用于锌和选自氯化物和含氟化物的原料等有价金属的回收方法，其中浸出而不与硫酸焙烧和金属被从所获得的纯化的盐水金属电解沉积。 该新方法是便宜的，因为进料至与碳酸钠的碱性浸出的威尔兹氧化物在120℃下以除去氯化物和氟化物和卤化物的呈现水溶性，溶解的卤化物与从Wälzoxiden用水洗涤指出halogenidarmen在硫酸或细胞酸威尔兹氧化物 是沥滤，并且金属通过电解从纯化后所得到的溶液沉积。