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公开(公告)号：US10144693B2
公开(公告)日：2018-12-04
申请号：US15518060
申请日：2015-10-06
摘要： Carboxylic acids are prepared by a one-step gas phase process comprising the step of contacting under halogen-free hydroxycarbonylation conditions an alkene, carbon monoxide, water, and a solid sulfide-containing catalyst.
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公开(公告)号：US10130956B2
公开(公告)日：2018-11-20
申请号：US14256042
申请日：2014-04-18
发明人： Devarayasamudram Ramachandran Nagaraj , Tarun Bhambhani , Mukund Vasudevan , Puspendu Deo , Haunn-Lin Tony Chen
IPC分类号： B03D1/02 , B03D1/016 , 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 minerals from an ore containing said minerals and a Mg-silicate, slime forming mineral, and/or clay, and which is subjected to a froth flotation process, by adding to one or more stage of the froth flotation process a froth phase modifier having a polymer containing one or more functional groups, and optionally a monovalent ion modifier enhancing agent, thereby enhancing recovery of a value sulfide mineral and/or a precious metal-bearing mineral.
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3.发明申请Process For Atmospheric Leaching Of Laterite Ores Using Hypersaline Leach Solution 失效使用Hypersaline Leach Solution对红土矿石大气浸出的过程公开(公告)号：US20110056333A1
公开(公告)日：2011-03-10
申请号：US12920546
申请日：2009-03-19
CPC分类号： C22B23/005 , C22B3/0005 , C22B3/42 , C22B23/0423 , C22B23/043 , C22B23/0461 , Y02P10/234
摘要： An atmospheric leaching process for the recovery of a nickel and cobalt from a lateritic ore, said process including the steps: (a) preparing a slurry of the lateritic ore with saline or hypersaline water having a total dissolved solids (TDS) content greater than 30 g/L; (b) leaching the slurry of the lateritic ore with sulfuric acid at atmospheric pressure, (c) recovering nickel and cobalt from the resultant leachate.
摘要翻译： 一种用于从红土矿石中回收镍和钴的大气浸出方法，所述方法包括以下步骤：（a）制备具有大于30的总溶解固体（TDS）含量的盐水或高浓度水的红土矿石浆料 g / L; （b）在大气压下用硫酸浸出红土矿石浆液，（c）从所得浸出液中回收镍和钴。
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公开(公告)号：US4816236A
公开(公告)日：1989-03-28
申请号：US134666
申请日：1987-12-18
申请人： Harry E. Gardner
发明人： Harry E. Gardner
CPC分类号： C01G53/11 , C01G31/00 , C22B23/02 , C22B34/22 , Y02P10/234
摘要： A process is provided for the recovery of vanadium and nickel values from petroleum residues and, in particular, from Flexicoke. In the process, Flexicoke is blended with an alkali metal source, such as sodium sulfate or sodium carbonate, and then roasted in an oxygen-containing gas until carbon is removed and a fused mixture is obtained. Thereafter, the vanadium is leached from the mixture with an aqueous solution, and nickel is contained in solids remaining from the leaching.
摘要翻译： 提供了从石油残渣，特别是从Flexicoke回收钒和镍的方法。 在此过程中，将Flexicoke与碱金属源（如硫酸钠或碳酸钠）混合，然后在含氧气体中焙烧，直至除去碳并得到稠合的混合物。 此后，用水溶液从混合物中浸出钒，并且从浸出物中残留的固体中含有镍。
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公开(公告)号：US4399109A
公开(公告)日：1983-08-16
申请号：US352537
申请日：1982-02-26
CPC分类号： C22B23/043 , Y02P10/212
摘要： A method is provided for inhibiting the formation of silica scale on flash-pot surfaces during the multi-stage flashing of sulfuric acid pressure-leach slurry obtained following the continuous autoclave leaching of nickel lateritic ore at elevated temperature and pressure during which silica is dissolved, wherein the leach slurry is subjected to a high-temperature flash stage such that the slurry at the flash temperature is supersaturated in soluble silica, and wherein the slurry is thereafter subjected to at least one additional flash at an intermediate-temperature flash stage at which silica precipitates and tends to form a scale accompanied by a decrease in said supersaturation. The improvement resides in recycling a substantial portion of the slurry to the intermediate-temperature stage following flashing to the intermediate-temperature flash stage, the portion recycled being sufficient to effect a dilution in silica concentration of the slurry being flashed into the intermediate-temperature flash stage from the high-temperature stage, and continuing the recycling of flashed slurry to the intermediate-temperature flash stage, whereby silica scale formation at the intermediate-temperature flash stage is greatly inhibited. The pH of the recycling stream may be adjusted to further minimize silica deposition.
摘要翻译： 提供了一种方法，用于在高温和高压下二氧化硅溶解的镍红土矿石的连续高压釜浸出之后获得的硫酸压力浸出浆液的多级闪蒸期间，抑制闪蒸罐表面上二氧化硅垢的形成， 其中浸出浆料经受高温闪蒸阶段，使得闪蒸温度下的浆料在可溶性二氧化硅中过饱和，然后在中间温度闪蒸阶段将浆料经历至少一次另外的闪蒸，其中二氧化硅 沉淀并趋于形成伴随着所述过饱和度降低的氧化皮。 改进之处在于将大部分浆料循环回到中间温度闪蒸阶段之后的中间温度阶段，再循环的部分足以使浆料的二氧化硅浓度稀释到闪蒸到中间温度闪蒸 从高温阶段开始，持续将闪蒸浆料回收到中温闪蒸阶段，从而大大抑制了中温闪蒸阶段的二氧化硅垢形成。 可以调节再循环流的pH以进一步最小化二氧化硅沉积。
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公开(公告)号：US20220246934A1
公开(公告)日：2022-08-04
申请号：US17584732
申请日：2022-01-26
发明人： Ziqiang SHAO , Shuai JIA , Jie WEI , Zhen HUANG , Baixue GONG
摘要： Disclosed is a hollow sulfide microsphere with enriched sulfur vacancies, which is prepared by a method comprising the steps of: dissolving cobalt nitrate and nickel nitrate in a mixed solution of N, N-dimethylformamide and acetone with an equal volume; then adding a chelating agent thereto, subjecting a resulting mixture to a solvothermal reaction to obtain a coordination polymer microsphere; dissolving the coordination polymer microsphere and a sulfurization agent in an organic solvent, and reacting to obtain a hollow sulfide microsphere; and subjecting the hollow sulfide microsphere to reduction treatment with sodium borohydride, centrifuging, washing and drying to obtain the hollow sulfide microsphere with enriched sulfur vacancies having a particle size of 1-2.5 μm, a shell thickness of 15-30 nm and a specific capacity of the material of 763.4 C g−1 (current density is 1 A g−1).
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公开(公告)号：US20170369779A1
公开(公告)日：2017-12-28
申请号：US15541937
申请日：2016-01-15
发明人： Jonathan S. OWEN , Mark P. HENDRICKS , Michael P. CAMPOS , Gregory T. CLEVELAND , llan Jen-La PLANTE , Leslie Sachiyo HAMACHI
IPC分类号： C09K11/88 , C01B19/04 , C01G3/12 , C01G9/08 , C01G11/02 , C01G19/00 , C01G21/21 , C01G53/11 , C09K11/58 , C09K11/60 , C09K11/66 , C09K11/56 , B82Y40/00 , H01L33/04 , B82Y20/00
CPC分类号： C09K11/883 , B82Y20/00 , B82Y30/00 , B82Y40/00 , C01B19/007 , C01B19/04 , C01G1/12 , C01G3/12 , C01G9/08 , C01G11/02 , C01G19/00 , C01G19/006 , C01G21/21 , C01G53/11 , C01P2002/72 , C01P2002/84 , C01P2004/04 , C01P2004/16 , C01P2004/24 , C01P2004/32 , C01P2004/64 , C01P2004/80 , C09K11/565 , C09K11/582 , C09K11/602 , C09K11/661 , C09K11/881 , H01L33/04 , Y10S977/774 , Y10S977/824 , Y10S977/825 , Y10S977/892 , Y10S977/896 , Y10S977/95
摘要： The present invention is directed to methods of preparing metal sulfide, metal selenide, or metal sulfide/selenide nanoparticles and the products derived therefrom. In various embodiments, the nanoparticles are derived from the reaction between precursor metal salts and certain sulfur- and/or selenium-containing precursors each independently having a structure of Formula (I), (II), or (III), or an isomer, salt, or tautomer thereof, where Q1,Q2,Q3,R1,R2,R3,R5, and X are defined within the specification.
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公开(公告)号：US20140314641A1
公开(公告)日：2014-10-23
申请号：US14256042
申请日：2014-04-18
发明人： Devarayasamudram Ramachandran NAGARAJ , Tarun BHAMBHANI , Mukund VASUDEVAN , Puspendu DEO , Haunn-Lin Tony CHEN
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 and/or precious-metal minerals from an ore containing said minerals and a Mg-silicate, slime forming mineral, and/or clay, and which is subjected to a froth flotation process, by adding to one or more stage of the froth flotation process a froth phase modifier having a polymer containing one or more functional groups, and optionally a monovalent ion modifier enhancing agent, thereby enhancing recovery of a value sulfide mineral and/or a precious metal-bearing mineral.
摘要翻译： 从含有矿物和含硅酸镁，粘泥形成矿物和/或粘土的矿石中提取价值硫化物和/或贵金属矿物的回收率并经受泡沫浮选工艺的方法，通过加入一种或 泡沫浮选方法的更多阶段是具有含有一个或多个官能团的聚合物的泡沫相改性剂，以及任选的一价离子改性剂增强剂，从而增强值硫化物矿物和/或含贵金属矿物的回收。
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9.发明授权Recovery of uranium from material containing iron, arsenic and siliceous matter 失效从含铁，砷和硅质物质的材料中回收铀
公开(公告)号：US4406864A
公开(公告)日：1983-09-27
申请号：US192767
申请日：1980-10-01
CPC分类号： C22B60/0278 , C01G28/008 , C01G53/11 , C22B60/0234 , C22B60/026
摘要： A process for the recovery of uranium values from uranium-containing material which also contains iron, arsenic and siliceous matter, includes leaching the uranium-containing material in aqueous sulphuric acid solution under conditions to provide dissolved iron present in the resultant leach solution as predominantly ferrous iron rather than ferric iron and/or to provide a sulphuric acid concentration in the leach solution sufficiently high to substantially prevent the precipitation of arsenates. Uranium values are recovered from the leach solution by solvent extraction agent which has little affinity for arsenic.
摘要翻译： 还含有铁，砷和硅质物质的含铀材料回收铀值的过程包括在含硫的硫酸溶液中浸出含铀材料，以提供存在于主要为亚铁的所得浸出溶液中的溶解铁 铁而不是三价铁和/或提供浸出溶液中的硫酸浓度足够高以基本上防止砷酸盐的沉淀。 通过对砷具有很小亲和力的溶剂萃取剂从浸出溶液中回收铀值。
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公开(公告)号：US4401630A
公开(公告)日：1983-08-30
申请号：US298208
申请日：1981-08-31
申请人： Victor A. Ettell , Juraj Babjak
发明人： Victor A. Ettell , Juraj Babjak
CPC分类号： C22B23/0415 , C22B23/0492
摘要： The metal content of nickel-cobalt mixed sulfide slurries is recovered by atmospheric oxidation leaching, thereafter removing dissolved copper by metathesis with further mixed sulfide feed, treating the filtrate after liquid-solids separation with ammonia to selectively precipitate cobalt, separating the cobalt precipitate and working up the resulting filtrate to recover nickel.
摘要翻译： 通过大气氧化浸出回收镍钴混合硫化物浆料的金属含量，然后通过复分解进一步混合硫化物进料除去溶解的铜，在用氨固液分离后处理滤液以选择性沉淀钴，分离钴沉淀物和加工 使所得滤液回收镍。
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