公开(公告)号：US4465569A

公开(公告)日：1984-08-14

申请号：US512726

申请日：1983-07-11

申请人： Arne Bjune ,  Gunnar H. Boe ,  Tore Danielssen

发明人： Arne Bjune ,  Gunnar H. Boe ,  Tore Danielssen

IPC分类号： C01G9/00 ,  C22B3/38 ,  C25C1/16

CPC分类号： C22B3/0043 ,  C01G9/003 ,  Y02P10/234

摘要： Selective extraction of zinc from chloride solutions which contain iron, copper and zinc, where the zinc is extracted in organic phase by means of tri-n-butylphosphate in an organic solvent. The extraction is carried out on chloride solutions in which the lead contents is possibly lowered and where the copper contents is maximum 50 grams per liter higher copper concentration being reduced for instance by electrolysis in diaphragm cell. The zinc containing organic phase is washed, and zinc back-extracted and conducted to a diaphragm cell for electrolysis of zinc, the used electrolyte being returned to the back-extraction step. The raffinate from the zinc extraction is used for repeated leaching of metals after preceding reoxidation.

摘要翻译： 从含有铁，铜和锌的氯化物溶液中选择性提取锌，锌在有机相中通过三正丁基磷酸酯在有机溶剂中萃取。 提取在其中铅含量可能降低的氯化物溶液中进行，并且铜含量最高为50克/升，例如通过在隔膜室中电解而降低铜浓度。 洗涤含锌有机相，并将锌反提取并导入隔膜电池用于电解锌，将所用电解液返回到反萃取步骤。 来自锌提取的萃余液用于在再次氧化之后重复浸出金属。

公开(公告)号：US4421616A

公开(公告)日：1983-12-20

申请号：US262299

申请日：1981-05-11

申请人： Arne Bjune ,  Gunnar H. Boe ,  Tore Danielssen

发明人： Arne Bjune ,  Gunnar H. Boe ,  Tore Danielssen

IPC分类号： C01G9/00 ,  C22B3/38

CPC分类号： C22B3/0043 ,  C01G9/003 ,  Y02P10/234

摘要： Selective extraction of zinc from chloride solutions which contain iron, copper and zinc, where the zinc is extracted in organic phase by means of tri-n-butylphosphate in an organic solvent. The extraction is carried out on chloride solutions in which the lead contents is possibly lowered and where the copper contents is maximum 50 grams per liter higher copper concentration being reduced for instance by electrolysis in diaphragm cell. The zinc containing organic phase is washed, and zinc back-extracted and conducted to a diaphragm cell for electrolysis of zinc, the used electrolyte being returned to the back-extraction step. The raffinate from the zinc extraction is used for repeated leaching of metals after preceding reoxidation.

摘要翻译： 从含有铁，铜和锌的氯化物溶液中选择性提取锌，锌在有机相中通过三正丁基磷酸酯在有机溶剂中萃取。 提取在其中铅含量可能降低的氯化物溶液中进行，并且铜含量最高为50克/升，例如通过在隔膜室中电解而降低铜浓度。 洗涤含锌有机相，并将锌反提取并导入隔膜电池用于电解锌，将所用电解液返回到反萃取步骤。 来自锌提取的萃余液用于在再次氧化之后重复浸出金属。