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公开(公告)号：US20090074608A1
公开(公告)日：2009-03-19
申请号：US12208961
申请日：2008-09-11
申请人： Daniel Hillier , Noelene Ahern , Yeonuk Choi
发明人： Daniel Hillier , Noelene Ahern , Yeonuk Choi
摘要： A method for suppressing mercury dissolution during pressure oxidation of precious metal-containing materials in the presence of halogens and halides is provided. Pressure oxidation is performed under controlled oxidative conditions to maintain the mercury predominantly in the solid residue.
摘要翻译： 提供了一种在卤素和卤化物存在下抑制含贵金属材料的压力氧化过程中的汞溶解的方法。 在受控氧化条件下进行压力氧化，以将汞主要维持在固体残渣中。
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公开(公告)号：US07918919B2
公开(公告)日：2011-04-05
申请号：US12208961
申请日：2008-09-11
申请人： Daniel Hillier , Noelene Ahern , Yeonuk Choi
发明人： Daniel Hillier , Noelene Ahern , Yeonuk Choi
IPC分类号： C22B3/04
摘要： A method for suppressing mercury dissolution during pressure oxidation of precious metal-containing materials in the presence of halogens and halides is provided. Pressure oxidation is performed under controlled oxidative conditions to maintain the mercury predominantly in the solid residue.
摘要翻译： 提供了一种在卤素和卤化物存在下抑制含贵金属材料的压力氧化过程中的汞溶解的方法。 在受控氧化条件下进行压力氧化，以将汞主要维持在固体残渣中。
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公开(公告)号：US08262770B2
公开(公告)日：2012-09-11
申请号：US12209939
申请日：2008-09-12
申请人： Daniel Hillier , Yeonuk Choi , Noelene Ahern
发明人： Daniel Hillier , Yeonuk Choi , Noelene Ahern
IPC分类号： C22B11/00
摘要： The present invention is directed to flotation of refractory gold sulfide ores and to pressure oxidized residue neutralization using flotation tailings that have been contacted with an off gas of pressure oxidation.
摘要翻译： 本发明涉及使用已经与压力氧化废气接触的浮选尾矿来对难熔金硫化物矿石进行浮选和压力氧化残余物中和。
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公开(公告)号：US20090071296A1
公开(公告)日：2009-03-19
申请号：US12209939
申请日：2008-09-12
申请人： Daniel Hillier , Yeonuk Choi , Noelene Ahern
发明人： Daniel Hillier , Yeonuk Choi , Noelene Ahern
IPC分类号： C22B11/00
摘要： The present invention is directed to flotation of refractory gold sulfide ores and to pressure oxidized residue neutralization using flotation tailings that have been contacted with an off gas of pressure oxidation.
摘要翻译： 本发明涉及使用已经与压力氧化废气接触的浮选尾矿来对难熔金硫化物矿石进行浮选和压力氧化残余物中和。
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公开(公告)号：US20090158893A1
公开(公告)日：2009-06-25
申请号：US12277046
申请日：2008-11-24
申请人： Wan-Tai Yen , Richard Kwasi Amankwah , Yeonuk Choi
发明人： Wan-Tai Yen , Richard Kwasi Amankwah , Yeonuk Choi
IPC分类号： C22B11/00
摘要： The present invention is directed to recovery of gold from refractory and double refractory ores using a fungal agent and/or culture media.
摘要翻译： 本发明涉及使用真菌剂和/或培养基从耐火和双重耐火矿石回收金。
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6.发明授权公开(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。
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公开(公告)号：US09051625B2
公开(公告)日：2015-06-09
申请号：US13524907
申请日：2012-06-15
CPC分类号： C22B11/04 , C22B3/42 , Y02P10/234
摘要： The present disclosure is directed to a process for recovering a precious metal from a pregnant leach solution using a resin extractant. The precious metal is eluted from the loaded resin using an eluant comprising trithionate. The barren resin is contacted with a sulfide, bisulfide, and/or polysulfide to convert sorbed trithionate to thiosulfate. The desorbed thiosulfate is contacted with an oxidant and converted to trithionate for eluant recycle.
摘要翻译： 本公开涉及使用树脂萃取剂从怀孕浸出溶液中回收贵金属的方法。 使用包含三硫酸盐的洗脱剂从负载的树脂中洗脱贵金属。 贫硫树脂与硫化物，二硫化物和/或多硫化物接触以将吸附的三硫酸盐转化为硫代硫酸盐。 将脱硫的硫代硫酸盐与氧化剂接触，并转化成三硫代乙酸盐用于洗脱剂再循环。
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公开(公告)号：US07572317B2
公开(公告)日：2009-08-11
申请号：US11558639
申请日：2006-11-10
CPC分类号： C22B11/04 , C22B3/08 , C22B3/24 , Y02P10/234
摘要： Precious metal recovery by thiosulfate leaching where thiosulfate lixiviant is generated in situ employing elemental sulfur generated from partial oxidation of sulfidic precious metal-bearing feed and/or employing reactants from processing effluent.
摘要翻译： 通过硫代硫酸盐浸出进行的贵金属回收，其中硫代硫酸盐浸出物原位使用由硫代含贵金属的进料的部分氧化产生的元素硫和/或使用来自加工流出物的反应物。
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公开(公告)号：US20070292326A1
公开(公告)日：2007-12-20
申请号：US11761103
申请日：2007-06-11
申请人： Yeonuk Choi , Peter Kondos , Jacques McMullen
发明人： Yeonuk Choi , Peter Kondos , Jacques McMullen
IPC分类号： C01G11/00
摘要： The present invention is directed to a precious metal recovery process in which basic ferric sulphates and/or jarosites are controlled by hot curing of the autoclave discharge slurry followed by decomposition of argentojarosite using strong acid consumers.
摘要翻译： 本发明涉及一种贵金属回收方法，其中通过高压釜排出浆料的热固化，然后使用强酸消费者分解阿根廷珠糖碱来控制碱性硫酸铁和/或白玉石。
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10.发明申请公开(公告)号：US20110165059A1
公开(公告)日：2011-07-07
申请号：US12986898
申请日：2011-01-07
申请人： Yeonuk Choi
发明人： Yeonuk Choi
摘要： In an embodiment, the present invention relates to an apparatus and a process for producing a concentrated form of basic zinc sulphate from a, typically dilute, acidic zinc sulphate-bearing solution. The process embodiment comprises the steps of precipitating the zinc, preferably primarily as basic zinc sulphate, from the acidic zinc sulphate solution, preferably using calcium oxide, in such a way as to promote the formation of separate gypsum crystals and basic zinc sulphate particles, and upgrading the zinc content in the precipitates by separating the basic zinc sulphate from the gypsum using size separation techniques.
摘要翻译： 在一个实施方案中，本发明涉及从通常为稀酸性的含硫酸锌的溶液中生产浓缩形式的碱式硫酸锌的装置和方法。 该方法的实施方案包括如下步骤：将锌，优选主要作为碱性硫酸锌从酸性硫酸锌溶液中沉淀出来，优选使用氧化钙，以促进单独的石膏晶体和碱性硫酸锌颗粒的形成，以及 通过使用尺寸分离技术从石膏中分离碱性硫酸锌来提高沉淀物中的锌含量。
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