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公开(公告)号：US20100126313A1
公开(公告)日：2010-05-27
申请号：US12451233
申请日：2008-05-01
IPC分类号： C22B23/02
CPC分类号： C22B23/0438 , C22B3/065 , C22B3/44 , C22B23/0461 , Y02P10/234
摘要： An improved method for processing of nickel bearing saprolite and limonite ores to recover the valuable minerals contained therein, comprising leaching the ore with nitric acid to form a slurry; separating the iron values by precipitation, removing the iron values; forming a liquid/solid residue in which nickel, cobalt and magnesium are in solution, and manganese and aluminum are solid residues in oxide form; conducting a liquid-solid separation and removing the solids; and recovering the nickel, cobalt, and manganese from the liquid-metal concentrate. The leachate is recovered and nitric acid from the leachate is recycled.
摘要翻译： 一种用于处理含镍腐泥土和褐铁矿矿石的改进方法，用于回收其中所含有价值的矿物质，包括用硝酸浸出矿石以形成浆料; 通过降水分离铁价值，去除铁价值; 形成其中镍，钴和镁在溶液中的液/固残渣，锰和铝是氧化物形式的固体残留物; 进行液固分离并除去固体; 并从液态金属浓缩物中回收镍，钴和锰。 渗滤液回收，渗滤液中的硝酸被回收利用。
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公开(公告)号：US20150368120A1
公开(公告)日：2015-12-24
申请号：US14313945
申请日：2014-06-24
CPC分类号： C01G45/08 , C01G45/02 , C22B47/0063
摘要： An improved method for treating manganese-containing materials, such as seafloor manganese nodules, by leaching with aqueous HNO3 and NO gas, and more particularly to methods for recovering valuable constituents from such nodules, especially manganese, cobalt, nickel, iron, and copper. It also provides a method to leach manganese material to release the titanium, vanadium, cerium, molybdenum and other metals from the manganese oxides and to make them available to be recovered.
摘要翻译： 一种用于通过用HNO 3和NO 3水溶液浸出来处理含锰材料如海底锰结核的改进方法，更具体地说，涉及用于从这些结核，特别是锰，钴，镍，铁和铜中回收有价值成分的方法。 它还提供了一种浸出锰材料以从锰氧化物中释放钛，钒，铈，钼和其他金属并使其可以回收的方法。
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公开(公告)号：US20160280561A9
公开(公告)日：2016-09-29
申请号：US14313945
申请日：2014-06-24
CPC分类号： C01G45/08 , C01G45/02 , C22B47/0063
摘要： An improved method for treating manganese-containing materials, such as seafloor manganese nodules, by leaching with aqueous HNO3 and NO gas, and more particularly to methods for recovering valuable constituents from such nodules, especially manganese, cobalt, nickel, iron, and copper. It also provides a method to leach manganese material to release the titanium, vanadium, cerium, molybdenum and other metals from the manganese oxides and to make them available to be recovered.
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公开(公告)号：US5980842A
公开(公告)日：1999-11-09
申请号：US117571
申请日：1998-07-28
IPC分类号： C01B21/42 , C01F5/02 , C01F5/06 , C01F5/16 , C01F11/04 , C01F11/38 , C22B3/06 , C22B26/20 , C22B26/00 , C01F11/36
CPC分类号： C01F5/16 , C01B21/42 , C01F11/04 , C01F11/38 , C01F5/02 , C01F5/06 , C22B26/20 , C22B3/065 , Y02P10/234
摘要： A method of separating calcium from mixtures of metal oxides, sulfides, nitrates and carbonates. Particulate calcium containing mixtures are leached with nitric acid to form calcium nitrate and metal nitrates, which are heated to dryness and to form metal oxides, while not affecting the calcium nitrate. The resulting mixture is then leached with water to obtain a calcium nitrate containing leachate and a residue of low solubility metal oxides and insoluble metal oxides. If desired, the calcium nitrate can be decomposed to form a lime product.
摘要翻译： PCT No.PCT / US97 / 03221 Sec。 371日期1998年7月29日第 102（e）日期1998年7月29日PCT提交1997年2月28日PCT公布。 公开号WO97 / 31860 日期1997年9月4日一种从金属氧化物，硫化物，硝酸盐和碳酸盐的混合物中分离钙的方法。 用硝酸将含钙的混合物浸出以形成硝酸钙和金属硝酸盐，其被加热至干，并形成金属氧化物，同时不影响硝酸钙。 然后将所得混合物用水沥滤，得到含硝酸钙的浸出液和低溶解度金属氧化物和不溶性金属氧化物的残留物。 如果需要，硝酸钙可以分解形成石灰产品。
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公开(公告)号：US09926206B2
公开(公告)日：2018-03-27
申请号：US14313945
申请日：2014-06-24
CPC分类号： C01G45/08 , C01G45/02 , C22B47/0063
摘要： An improved method for treating manganese-containing materials, such as seafloor manganese nodules, by leaching with aqueous HNO3 and NO gas, and more particularly to methods for recovering valuable constituents from such nodules, especially manganese, cobalt, nickel, iron, and copper. It also provides a method to leach manganese material to release the titanium, vanadium, cerium, molybdenum and other metals from the manganese oxides and to make them available to be recovered.
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公开(公告)号：US20120073407A1
公开(公告)日：2012-03-29
申请号：US13200782
申请日：2011-09-30
CPC分类号： C22B23/0438 , C22B23/0469 , Y02P10/212
摘要： An improved method for processing of nickel-bearing ores, particularly saprolite and limonite, to recover the valuable minerals contained therein, comprising leaching the ore with nitric acid to form a slurry; separating the iron values by precipitation, removing the iron values; forming a liquid/solid residue in which nickel, cobalt and magnesium are in solution, and manganese and aluminum, when present, are solid residues in oxide form; conducting a liquid-solid separation and removing the solids; and recovering the nickel, cobalt, and manganese from the liquid-metal concentrate. The leachate is recovered and nitric acid from the leachate is recycled.
摘要翻译： 一种用于处理含镍矿石，特别是腐泥土和褐铁矿的改进方法，用于回收其中所含的有价矿物质，包括用硝酸浸出矿石以形成浆料; 通过降水分离铁价值，去除铁价值; 形成其中镍，钴和镁在溶液中的液体/固体残余物，当存在时，锰和铝是氧化物形式的固体残余物; 进行液固分离并除去固体; 并从液态金属浓缩物中回收镍，钴和锰。 渗滤液回收，渗滤液中的硝酸被回收利用。
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公开(公告)号：US08814980B2
公开(公告)日：2014-08-26
申请号：US13200782
申请日：2011-09-30
CPC分类号： C22B23/0438 , C22B23/0469 , Y02P10/212
摘要： An improved method for processing of nickel-bearing ores, particularly saprolite and limonite, to recover the valuable minerals contained therein, comprising leaching the ore with nitric acid to form a slurry; separating the iron values by precipitation, removing the iron values; forming a liquid/solid residue in which nickel, cobalt and magnesium are in solution, and manganese and aluminum, when present, are solid residues in oxide form; conducting a liquid-solid separation and removing the solids; and recovering the nickel, cobalt, and manganese from the liquid-metal concentrate. The leachate is recovered and nitric acid from the leachate is recycled.
摘要翻译： 一种用于处理含镍矿石，特别是腐泥土和褐铁矿的改进方法，用于回收其中所含的有价矿物质，包括用硝酸浸出矿石以形成浆料; 通过降水分离铁价值，去除铁价值; 形成其中镍，钴和镁在溶液中的液体/固体残余物，当存在时，锰和铝是氧化物形式的固体残余物; 进行液固分离并除去固体; 并从液态金属浓缩物中回收镍，钴和锰。 渗滤液回收，渗滤液中的硝酸被回收利用。
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公开(公告)号：US08038767B2
公开(公告)日：2011-10-18
申请号：US12451233
申请日：2008-05-01
IPC分类号： C22B3/06
CPC分类号： C22B23/0438 , C22B3/065 , C22B3/44 , C22B23/0461 , Y02P10/234
摘要： An improved method for processing of nickel bearing saprolite and limonite ores to recover the valuable minerals contained therein, comprising leaching the ore with nitric acid to form a slurry; separating the iron values by precipitation, removing the iron values; forming a liquid/solid residue in which nickel, cobalt and magnesium are in solution, and manganese and aluminum are solid residues in oxide form; conducting a liquid-solid separation and removing the solids; and recovering the nickel, cobalt, and manganese from the liquid-metal concentrate. The leachate is recovered and nitric acid from the leachate is recycled.
摘要翻译： 一种用于处理含镍腐泥土和褐铁矿矿石的改进方法，用于回收其中所含有价值的矿物质，包括用硝酸浸出矿石以形成浆料; 通过降水分离铁价值，去除铁价值; 形成其中镍，钴和镁在溶液中的液/固残渣，锰和铝是氧化物形式的固体残留物; 进行液固分离并除去固体; 并从液态金属浓缩物中回收镍，钴和锰。 渗滤液回收，渗滤液中的硝酸被回收利用。
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公开(公告)号：US5912402A
公开(公告)日：1999-06-15
申请号：US608726
申请日：1996-02-29
CPC分类号： C22B7/006 , B01D47/02 , C22B3/065 , C22B7/02 , B01D2251/504 , Y02P10/234 , Y02P10/236
摘要： A treatment of metallurgical dust and recovery of valuable chemical commodities, comprising the steps of: leaching salts from the dust with water to create a washed EAF dust; reacting the washed EAF dust in a nitric acid solution resulting in a nearly complete dissolution of the zinc, cadmium, copper, magnesium, calcium, manganese and lead from a filtrate; removing iron from the filtrate by raising pH in the system with basic zinc carbonate; removing cadmium, copper and lead in an electrolytic cell, where copper and cadmium are collected at the cathode, and lead is collected at the anode; evaporating and decomposing the filtrate to obtain metal oxides and anhydrous calcium nitrate; leaching the solid residue with water to separate calcium nitrate in a marketable form; removing the zinc from the magnesium and manganese by leaching the residue with an amine solution; stripping the filtrate of ammonium carbonate to yield zinc precipitated as a zinc oxycarbonate; dividing the zinc oxycarbonate into a first stream and a second stream by reacting the zinc complex with acid to produce a zinc product, the first stream serving as a pH adjuster to precipitate iron, the second stream preparing highly pure zinc products for sale; and, separating a residue containing magnesium and manganese by dissolving magnesium in acid, whereby liquid filtrate contains marketable magnesium nitrate or sulfate. The nitric gases given off during the steps are recycled to nitric acid by a nitric recycle.
摘要翻译： 一种处理冶金粉尘和回收有价值的化学物品的方法，其特征在于包括以下步骤：用水从灰尘中浸出盐以产生洗涤的EAF粉尘; 使洗涤的EAF粉尘在硝酸溶液中反应，导致滤液中的锌，镉，铜，镁，钙，锰和铅几乎完全溶解; 通过用碱式碳酸锌提高体系中的pH，从滤液中除去铁; 去除在阴极处收集铜和镉的电解池中的镉，铜和铅，铅在阳极收集; 蒸发并分解滤液，得到金属氧化物和无水硝酸钙; 用水浸出固体残渣，以可销售的形式分离硝酸钙; 通过用胺溶液浸出残留物从镁和锰中除去锌; 剥离碳酸铵滤液，得到沉淀的锌作为碳酸锌; 通过使锌络合物与酸反应产生锌产物，将碳酸氢锌分成第一料流和第二料流，第一料流用作pH调节剂以沉淀铁，第二料流制备高纯度锌产品出售; 并且通过将镁溶解在酸中来分离含有镁和锰的残余物，由此液体滤液含有市售的硝酸镁或硫酸盐。 在步骤中排出的硝酸气体通过硝酸回收再循环至硝酸。
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公开(公告)号：US5026530A
公开(公告)日：1991-06-25
申请号：US502564
申请日：1990-03-30
摘要： A method of preparing copper arsenate compositions having unique advantges in lower cost and higher performance for use in preparing chromated copper arsenate wood preserving formulations. These copper arsenate compositions are insoluble copper arsenate in water or as a dry reactive powder, have a mol ratio of As.sub.2 O.sub.5 to CuO of 1:4, and is readily soluble in chromic acid to form CCA wood preservatives. This copper arsenate is prepared by reacting suitable copper-bearing materials with arsenic trioxide and air or oxygen in ammoniacal solutions. Either or both of the starting raw materials, i.e., the copper and the arsenic, may be very impure, which impure materials were heretofore unsuitable for the production of copper arsenate.
摘要翻译： 一种制备具有独特优势的砷酸铜组合物的方法，其具有较低的成本和更高的性能，用于制备铬酸铜的木材保存配方。 这些砷酸铜组合物在水中不溶于砷酸铜或作为干燥反应性粉末，其As 2 O 5与CuO的摩尔比为1:4，并且易溶于铬酸以形成CCA木材防腐剂。 这种砷酸铜是通过使合适的含铜材料与三氧化砷和空气或氧气在氨溶液中反应来制备的。 起始原料，即铜和砷中的任一种或两者可能是非常不纯的，其不纯物质以前不适于生产砷酸铜。
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