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1. 发明授权

US11007538B2 Flotation reagents and flotation processes utilizing same 有权
公开(公告)号：US11007538B2
公开(公告)日：2021-05-18
申请号：US15165351
申请日：2016-05-26
申请人： Cytec Technology Corp.
发明人： Devarayasamudram Ramachandran Nagaraj , Tarun Bhambhani , Mukund Vasudevan , Puspendu Deo , Haunn-Lin Tony Chen
IPC分类号： B03D1/016 , B03D1/02 , B03D1/06 , C01G53/11 , C22B3/00 , C22B3/12 , C22B3/14 , C22B3/16 , C22B3/24 , C22B15/00 , C22B34/34 , B03D1/008 , B03D1/01 , B03D1/012 , B03D1/014
摘要： Methods of enhancing recovery of value sulfide and/or precious metal-bearing minerals from an ore containing such minerals as well as Mg-silicate, slime forming minerals, and/or clay by adding a froth phase modifier agent to the ore, and subjecting the ore to a froth flotation process performed under acidic conditions, are provided herein.

2. 发明申请

US20210130184A1 Method for Producing Calcium Zincate 有权
公开(公告)号：US20210130184A1
公开(公告)日：2021-05-06
申请号：US17146475
申请日：2021-01-11
申请人： CHONGQING DONGQUN TECHNOLOGY CO., LTD.
发明人： Huiwei Yue , Shichuan Li , Zhongxiang Long , Tao Jiang , Quanfeng Liu
IPC分类号： C01G9/00 , C22B3/14
摘要： Provided is a method for producing calcium zincate. The method comprises: an extraction step: mixing a ground zinc-containing raw material with an extracting agent, followed by filtration to obtain an extract, wherein the extracting agent is a mixed aqueous solution of ammonia and {NH4HCO3 and/or (NH4)2CO3; optionally, purifying the extract; a decarburization step: adding calcium oxide and/or calcium hydroxide to the extract, stirring, and filtering to obtain a first solid and a first filtrate; a calcium zincate synthesis step: adding calcium hydroxide and/or calcium oxide to the first filtrate, stirring to react, and filtering to obtain a second solid and a second filtrate; optionally, rinsing the second solid with water; a drying step: drying the second solid to obtain the final calcium zincate product.

3. 发明授权

US10808295B2 Method for leaching precious metals containing ores using thiosulfate compounds and alkaline earth metals hydroxides 有权
公开(公告)号：US10808295B2
公开(公告)日：2020-10-20
申请号：US16315072
申请日：2017-07-05
申请人： Arman Pivazyan
发明人： Arman Pivazyan
IPC分类号： C22B3/00 , C22B3/12 , C22B3/14
摘要： Methods, systems and lixiviation compositions including an ammonium thiosulfate or a non-ammonium thiosulfate component in combination with one or more alkaline earth metal hydroxides, and optionally copper cations, for leaching precious metals from a precious metal containing material. The alkaline earth metal hydroxides may include magnesium hydroxide, calcium hydroxide, or a combination of magnesium hydroxide and calcium hydroxide.

4. 发明申请

US20200165697A1 INTEGRATED RECOVERY OF METALS FROM COMPLEX SUBSTRATES 审中-公开
公开(公告)号：US20200165697A1
公开(公告)日：2020-05-28
申请号：US16696838
申请日：2019-11-26
申请人： YAVA TECHNOLOGIES INC.
发明人： Madhav Dahal
IPC分类号： C22B3/14 , C22B3/00 , C22C18/00 , C22C11/00 , C22C9/00 , C22C5/06 , C22C5/02 , C22B15/00
摘要： Described is a method of recovering a metal from a substrate having a metal sulphide, metal oxide, or combination thereof, by contacting the substrate with an aqueous oxidant to oxidize the metal sulphide to elemental sulphur and oxidized metal or convert the complex metal oxide to a metal salt, contacting the oxidized metal or simple metal oxide with ammonium hydroxide to form soluble a ammine complex of the metal to obtain a leachate and residual solids; separating the leachate from the residual solids; and recovering the metal.

5. 发明授权

US10344353B2 Leach aid for metal recovery 有权
公开(公告)号：US10344353B2
公开(公告)日：2019-07-09
申请号：US15093422
申请日：2016-04-07
申请人： Ecolab USA Inc.
发明人： Vladimir Mujicic , Kim Coleman , Kevin O'Brien
IPC分类号： C22B3/00 , C22B3/04 , C22B11/08 , C22B15/00 , C22B3/06 , C22B3/08 , C22B3/10 , C22B3/12 , C22B3/14 , C22B3/16
摘要： Methods of recovering metals from metal-bearing materials, and more particularly, methods for improving leaching efficiency in extraction processes by employing a surfactant composition in the extraction process, as well as slurries useful in the methods of recovering metals are provided.

6. 发明授权

US10190193B2 Leaching of minerals 有权
公开(公告)号：US10190193B2
公开(公告)日：2019-01-29
申请号：US15030907
申请日：2014-10-21
申请人： Glencore Technology PTY LTD
发明人： Michael Matthew Hourn , Daniel Mallah , Paul Voigt , Duncan Turner
IPC分类号： C22B1/11 , C22B3/12 , C22B3/14 , C22B1/14 , C22B3/00 , C21B15/00 , C22B30/04 , C22B34/22 , C22B34/24
摘要： A method for treating a mineral composition containing iron, arsenic or other Group VA compounds comprises milling the mineral composition to a particle size of P80 of less than 25 μm and leaching the mineral composition in the presence of lime and/or limestone and a soluble alkali complexing agent and in the presence of an oxygen containing gas at a pH in the range of from 3.5 to 6.

7. 发明授权

US10125409B2 Method and plant for processing roasted pyrites 有权
公开(公告)号：US10125409B2
公开(公告)日：2018-11-13
申请号：US14891856
申请日：2013-06-24
申请人： Blucher Gmbh
发明人： Bertram Bohringer , Raik Schonfeld , Alexander Dyachenko , Valeriy Larin
IPC分类号： C22B61/00 , C22B1/04 , C22B11/06 , C22B1/02 , C22B3/14 , C22B3/20 , C22B3/00
摘要： The invention relates to a method and a recovery system for obtaining raw materials from ores and/or ore tailings, in particular a method and a recovery system for recovering metals from ores and/or ore tailings, especially a method and a recovery system for recovering metals from pyrite tailings, preferably from roasted pyrites produced during sulphuric acid manufacture.

8. 发明申请

US20180298505A1 SYSTEMS AND METHODS FOR IMPROVED METAL RECOVERY USING AMMONIA LEACHING 审中-公开
公开(公告)号：US20180298505A1
公开(公告)日：2018-10-18
申请号：US16011037
申请日：2018-06-18
申请人： FREEPORT MINERALS CORPORATION
发明人： Joanna M Robertson , Thomas R Bolles , Dennis D Gertenbach
IPC分类号： C25C1/12 , C22B15/00 , C22B3/44 , C22B3/00 , C22B3/14
CPC分类号： C25C1/12 , C22B3/14 , C22B3/44 , C22B15/0008 , C22B15/0078 , C22B15/0089 , C22B15/0093 , C22B23/0446 , C22B23/0461 , Y02P10/236
摘要： Systems and methods for basic leaching are provided. In various embodiments, a method is provided comprising leaching a slurry comprising a copper bearing material and an ammonia leach medium, adding copper powder to the slurry, separating the slurry into a pregnant leach solution and solids, and performing a solvent extraction on the pregnant leach solution to produce an loaded aqueous stream.

9. 发明授权

US09458522B2 Method for recovery of the constituent components of laterites 有权
标题翻译：回收红土组成成分的方法
公开(公告)号：US09458522B2
公开(公告)日：2016-10-04
申请号：US14255791
申请日：2014-04-17
申请人： AluChem Companies, Inc.
发明人： Ian Manson
IPC分类号： C22B3/08 , C22B3/46 , C22B3/14 , C22B34/12 , C22B21/00 , C22B26/22 , C22B3/44
CPC分类号： C22B3/08 , C22B3/14 , C22B3/44 , C22B3/46 , C22B21/0015 , C22B26/22 , C22B34/125 , Y02P10/234
摘要： Digestion of a laterite ore with sulfuric acid dissolves all constituents except silica. The resulting sulfates—aluminum sulfate, ferric sulfate, titanyl sulfate, and magnesium sulfate—remain in solution at approximately 90° C. Hot filtration separates silica. Solution flow over metallic iron reduces ferric sulfate to ferrous sulfate. Controlled ammonia addition promotes hydrolysis and precipitation of hydrated titania from titanyl sulfate that is removed by filtration. Continued addition of ammonia forms ferrous ammonium sulfate and ammonium aluminum sulfate solutions. Alum is preferentially separated by crystallization. Ammonia addition to ammonium alum solution precipitates aluminum hydroxide, leaving ammonium sulfate in solution. The remaining iron rich liquor also contains magnesium sulfate. The addition of oxalic acid generates insoluble ferrous oxalate which is thermally decomposed to ferrous oxide and carbon monoxide which is used to reduce the ferrous oxide to metallic iron. Further oxalic acid addition precipitates magnesium oxalate which is thermally decomposed to magnesium oxide.
摘要翻译：用硫酸对红土矿物进行消解可溶解二氧化硅以外的所有成分。所得硫酸盐 - 硫酸铝，硫酸铁，硫酸氧钛和硫酸镁在约90℃下保留在溶液中。热过滤分离二氧化硅。金属熨斗上的溶液流过还原硫酸亚铁。控制氨添加促进水合二氧化钛从硫酸氧钛上的水解和沉淀，通过过滤除去。继续加入氨形成硫酸亚铁铵和硫酸铵铵溶液。优选通过结晶分离明矾。除氨矾溶液之外，氨水沉淀出氢氧化铝，在溶液中留下硫酸铵。剩余的富铁液还含有硫酸镁。加入草酸产生不溶性的草酸亚铁，其被热分解成氧化亚铁和一氧化碳，其用于将氧化亚铁还原成金属铁。进一步的草酸加成沉淀出热分解成氧化镁的草酸镁。

10. 发明申请

US20160271624A1 FLOTATION REAGENTS AND FLOTATION PROCESSES UTILIZING SAME 审中-公开
标题翻译：浮选试剂和漂浮工艺
公开(公告)号：US20160271624A1
公开(公告)日：2016-09-22
申请号：US15165351
申请日：2016-05-26
申请人： Cytec Technology Corp.
发明人： Devarayasamudram Ramachandran NAGARAJ , Tarun BHAMBHANI , Mukund VASUDEVAN , Puspendu DEO , Haunn-Lin Tony CHEN
IPC分类号： B03D1/02 , C22B3/14 , C22B34/34 , C22B3/24 , C22B3/00 , C22B15/00 , C22B3/16 , C22B3/12
CPC分类号： B03D1/02 , B03D1/008 , B03D1/01 , B03D1/012 , B03D1/014 , B03D1/016 , B03D2201/007 , B03D2201/02 , B03D2203/02 , B03D2203/025 , C01G53/11 , C22B3/00 , C22B3/12 , C22B3/14 , C22B3/16 , C22B3/24 , C22B11/04 , C22B15/0078 , C22B15/0086 , C22B23/0446 , C22B23/0453 , C22B34/34
摘要： Methods of enhancing recovery of value sulfide or precious minerals from an ore containing Mg-silicate, slime forming minerals, and/or clay by subjecting the ore to a flotation process performed under acidic conditions, in conjunction with the addition of a froth phase modifier agent to the ore, are provided herein.
摘要翻译：通过在酸性条件下进行浮选工艺，通过加入泡沫相改性剂来提高从含硅酸镁，粘泥形成矿物和/或粘土的矿石中回收值的硫化物或贵重矿物的方法到矿石。

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