公开(公告)号：US06843976B2

公开(公告)日：2005-01-18

申请号：US09793734

申请日：2001-02-27

申请人： Carole Allen ,  Serge Payant ,  Peter Kondos ,  Gezinus Van Weert

发明人： Carole Allen ,  Serge Payant ,  Peter Kondos ,  Gezinus Van Weert

IPC分类号： B01J8/00 ,  C01G9/02 ,  C22B3/10 ,  C22B19/34 ,  B01D11/00

CPC分类号： C22B13/045 ,  C22B3/10 ,  C22B19/22 ,  C22B19/26 ,  C22B19/34 ,  Y02P10/234

摘要： An apparatus and a process for producing zinc oxide from a zinc-bearing material are provided. The process comprises the steps of leaching the complex sulfide material with hydrochloric acid, ferric chloride, and oxygen; precipitating iron from the leach solution using lime and oxygen; removing copper, silver, cadmium, cobalt and lead from the leach solution by cementation with zinc dust; precipitating zinc oxide from the leach solution using lime; and regenerating HCl from a calcium chloride leach filtrate solution to regenerate hydrochloric acid and precipitate gypsum. Related processes for recovering copper, silver, lead, and iron from complex sulfide materials and for recovering lead from residue by solubilizing lead chloride and precipitating it with lime are also provided.

摘要翻译： 提供了一种从含锌材料制备氧化锌的设备和方法。 该方法包括用盐酸，氯化铁和氧气将复合硫化物物质浸出的步骤; 使用石灰和氧气从浸出溶液中沉淀铁; 通过与锌粉粘结从浸出溶液中除去铜，银，镉，钴和铅; 使用石灰从浸出溶液中沉淀出氧化锌; 并从氯化钙浸出滤液中再生HCl以再生盐酸并沉淀石膏。 还提供了从复杂的硫化物材料中回收铜，银，铅和铁以及通过溶解氯化铅并用石灰沉淀从渣中回收铅的相关方法。

公开(公告)号：US06395242B1

公开(公告)日：2002-05-28

申请号：US09410102

申请日：1999-10-01

申请人： Carole Allen ,  Peter Kondos ,  Serge Payant ,  Gezinus Van Weert ,  Anthonie Van Sandwijk

发明人： Carole Allen ,  Peter Kondos ,  Serge Payant ,  Gezinus Van Weert ,  Anthonie Van Sandwijk

IPC分类号： C22B1900

CPC分类号： C22B3/02 ,  C22B3/10 ,  C22B7/02 ,  C22B19/22 ,  C22B19/26 ,  C22B19/34 ,  Y02P10/234

摘要： The present invention relates to an apparatus and a process for producing zinc oxide from a zinc-bearing material. The process according to the present invention comprises the steps of leaching the complex sulfide material with hydrochloric acid and oxygen; precipitating iron from the leach solution using magnesium oxide and oxygen; removing copper, silver, cadmium, cobalt and lead from the leach solution by cementation with zinc dust; precipitating zinc oxide from the leach solution using magnesium oxide; and spray roasting the remaining magnesium chloride leach solution to regenerate hydrochloric acid and magnesium oxide. The present invention further relates to processes for recovering copper, silver, lead, and iron from complex sulfide materials.

摘要翻译： 本发明涉及一种从含锌材料制备氧化锌的设备和方法。 根据本发明的方法包括用盐酸和氧气将复合硫化物物质浸出的步骤; 使用氧化镁和氧从浸出溶液中沉淀铁; 通过与锌粉粘结从浸出溶液中除去铜，银，镉，钴和铅; 使用氧化镁从浸出溶液中沉淀出氧化锌; 并喷洒焙烧剩余的氯化镁浸出溶液以再生盐酸和氧化镁。 本发明还涉及从复合硫化物材料中回收铜，银，铅和铁的方法。

公开(公告)号：US5200042A

公开(公告)日：1993-04-06

申请号：US712537

申请日：1991-06-10

申请人： George Houlachi ,  Carole Allen ,  Francis Belanger

发明人： George Houlachi ,  Carole Allen ,  Francis Belanger

IPC分类号： C22B15/00 ,  C25C1/12

CPC分类号： C22B15/0071 ,  C25C1/12 ,  Y02P10/236

摘要： A process for recovery of copper from a copper residue obtained during purification of a zinc sulfate solution comprises leaching the copper residue in a concentrated sulfuric acid solution in the presence of an oxidant at a temperature of between 60.degree. and 80.degree. C. and separating the solids from the leach solution, electrowinning copper from the leach solution, returning the electrolyte solution to the initial leaching stage to initiate dissolution of the copper residue, and bleeding a portion of the electrolyte solution to reduce the concentration of impurities in the solution.

摘要翻译： 在硫酸锌溶液纯化期间从铜残余物中回收铜的方法包括在氧化剂存在下，在60至80℃的温度下浸出浓硫酸溶液中的铜残留物，并将 来自浸出溶液的固体，从浸出溶液中电解提取铜，将电解质溶液返回到初始浸出阶段以引发铜残余物的溶解，并使一部分电解质溶液渗出以降低溶液中的杂质浓度。