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：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：US06726889B2

公开(公告)日：2004-04-27

申请号：US10199512

申请日：2002-07-22

申请人： Yeonuk Choi ,  Serge Payant ,  Joo Kim ,  Anna-Maria Giove ,  Ramachandra Rao ,  James Andrew Finch

发明人： Yeonuk Choi ,  Serge Payant ,  Joo Kim ,  Anna-Maria Giove ,  Ramachandra Rao ,  James Andrew Finch

IPC分类号： C22B1900

CPC分类号： C22B19/26 ,  C01G9/02 ,  C22B3/46 ,  C22B19/34 ,  Y02P10/234

摘要： The present invention relates to an apparatus and a process for producing zinc oxide from an acid soluble zinc-bearing material. The process according to the present invention comprises the steps of leaching the zinc oxide material with sulphuric acid; precipitating iron and silica from the leach solution using calcium oxide; removing copper, cadmium and cobalt from the leach solution by cementation with zinc dust; precipitating zinc oxide from the leach solution using calcium oxide; and upgrading zinc content in zinc oxide precipitates by separating zinc oxide from gypsum using a flotation or granulometric sizing technique.

摘要翻译： 本发明涉及一种由酸溶性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硫酸浸出氧化锌材料的步骤; 使用氧化钙从浸出溶液中沉淀铁和二氧化硅; 通过与锌粉粘结从浸出溶液中去除铜，镉和钴; 使用氧化钙从浸出溶液中沉淀氧化锌; 并通过使用浮选或粒度测定技术从石膏中分离氧化锌，提高氧化锌沉淀中的锌含量。