lixiviacion in situ sulfur cooper

Acid generation by in-situ sulphur biooxidation for copper

Acid generation by in-situ sulphur biooxidation for copper heap leaching. nfluence of the amount of elemental sulfur added on the copper recovery as a function of time during Zaldívar copper
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Enhanced field emission from in situ synthesized 2D

2015-3-31 A facile one-pot solvothermal route using the reaction of sputtered copper film and sulfur powder in ethanol solution at a low temperature of 90 °C for 12 hours has been implemented to in situ synthesize 2D hexagonal copper sulfide (CuS) nanoflakes. Their field electron emission (FE) characteristics were investigated and were found to have a close relationship with the copper film’s
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Converting copper sulfide to copper with surface sulfur

2021-6-23 So, surface sulfur-doped and -adsorbed low-coordinated copper nanowire sponges are designedly synthesized via in situ electroreduction of copper sulfide and
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Sulfur fate during in-situ gasification chemical looping

2021-2-15 Sulfur conversion during in-situ gasification chemical looping combustion (iG-CLC) of coal is consisted by pyrolysis and char gasification.Insight into the fate of sulfur in these two processes is essential for exploring appropriate strategies for sulfur emission control, whereas in most of works the pyrolysis and gasification could not be fully identified.
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Porous Copper Sulfide Microflowers Grown In Situ on

2020-11-22 In this work, a scalable and binder-free 3D porous CuS microflower (CuS-b) electrode was prepared via a simple method with in situ sulfur engraving on commercial copper foil. The as-prepared CuS-b delivers a high reversible capacity of 543 mAh g −1,excellent rate capability of 413 mAh g −1 at 60 A g −1 and remarkable long-term cycling
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In Situ Formation of Copper‐Based Hosts Embedded

2018-8-6 In Situ Formation of Copper-Based Hosts Embedded within 3D N-Doped Hierarchically Porous Carbon Networks for Ultralong Cycle Lithium–Sulfur Batteries Qiuhong Yu,Key Laboratory of Microelectronics and Energy of Henan Province,
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Use of lignosulfonate for elemental sulfur biooxidation

2009-1-1 2.2.3.. Copper LeachingThe effects of lignosulfonate on copper leaching and in-situ sulfur biooxidation were determined. Two slurries of ground sulfur were prepared in water, the first containing no lignosulfonate, the other containing 0.2 wt% lignosulfonate.Each sulfur slurry was mixed thoroughly with a copper ore previously wetted with 5 kg H 2 SO 4 per tonne of ore.
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Copper Coordination Chemistry of Sulfur Pendant Cyclen

Copper Coordination Chemistry of Sulfur Pendant Cyclen Derivatives: An Attempt to Hinder the Reductive-Induced Demetalation in 64/67 Cu Radiopharmaceuticals Inorg Chem . 2021 Aug 2;60(15):11530-11547. doi: 10.1021/acs.inorgchem.1c01550.
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Recovery of Copper by Solution Mining Methods

2015-7-23 copper sulfides, inadequate contact of the leach solutions with soluble copper minerals (i.e. channeling) and poor oxygenation (O’Gorman et. al, 2004). The proposed in-situ project at Florence, Arizona will introduce dilute sulfuric acid solutions (99.7% water and 0.3% H 2 SO 4 by volume) via injection wells to the copper-
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李小虎-上海交通大学海洋学院官网-上海交大海洋学院 SJTU

from in situ sulphur isotopes. Geological Magazine, 2019,156(6): 989-1002. 8. Meng X.W., Li X.H*., Chu F.Y., et al. Trace element and sulfur isotope compositions for pyrite across the mineralization zones of a sulfide chimney from the East 2020
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Converting copper sulfide to copper with surface sulfur

2021-6-23 So, surface sulfur-doped and -adsorbed low-coordinated copper nanowire sponges are designedly synthesized via in situ electroreduction of copper sulfide and
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In Situ Multiple Sulfur Isotope and S/Se Composition of

Whole-rock and in situ S/Se values (~810–3115) of magmatic sulfides and their host rocks are consistent with S loss during postmagmatic hydrothermal alteration, negating their use in interpreting the origin of S. Values of ∆ 33 S ~0 indicate no record of the assimilation of Archaean sulfur.
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Proyecto Lixiviación In Situ Botadero PTMP Dirección de

2018-10-18 Proyecto de lixiviación In Situ Botadero de Ripios PTMP Dirección de Desarrollo Óxidos Sulfuros GRMD División Chuquicamata INTRODUCCIÓN INTRODUCCIÓN El propósito de este proyecto es lixiviar alrededor de 23,8 millones de toneladas de ripios a
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Electrochemical generation of liquid and solid sulfur on

2020-1-27 a, The in situ optical cell used to perform the electrochemical generation of sulfur that enables simultaneous optical detection and electrochemical measurement.Left: schematic; right: a photo of
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Use of lignosulfonate for elemental sulfur biooxidation

2009-1-1 2.2.3.. Copper LeachingThe effects of lignosulfonate on copper leaching and in-situ sulfur biooxidation were determined. Two slurries of ground sulfur were prepared in water, the first containing no lignosulfonate, the other containing 0.2 wt% lignosulfonate.Each sulfur slurry was mixed thoroughly with a copper ore previously wetted with 5 kg H 2 SO 4 per tonne of ore.
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Tri-Functional Copper Sulfide as Sulfur Carrier for High

2017-5-16 Copper sulfide/sulfur composite, containing highly dispersed CuS, Cu 2 S and sulfur, is obtained via a facile one-step reaction of copper chloride and sodium thiosulfate. Based on the total mass of composite, a high initial capacity of 782.4 mAh g −1 with high coulombic efficiency of 97.4% is obtained, and after 50 cycles, the discharge capacity can still be retained at 580.2 mAh g −1.
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Copper‐Catalyzed Decarboxylative Synthesis of α

2021-5-8 An efficient and straightforward synthesis of α-ketothioamides has been accomplished via in situ decarboxylative oxidative thioamidation using α,β-unsaturated arylcarboxylic acids, alicyclic secondary amines and elemental sulfur under solvent-free aerobic conditions.
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Converting copper sulfide to copper with surface sulfur for

2021-6-23 Converting copper sulfide to copper with surface sulfur for electrocatalytic alkyne semi-hydrogenation with Nature Communications ( IF 14.919) Pub Date : 2021-06-23, DOI: 10.1038/s41467-021 Yongmeng Wu, Cuibo Liu, Changhong Wang, Yifu Yu, Yanmei Shi, Bin Zhang
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In Situ Formation of Copper-Based Hosts Embedded

In Situ Formation of Copper-Based Hosts Embedded within 3D N-Doped Hierarchically Porous Carbon Networks for Ultralong Cycle Lithium–Sulfur Batteries . Authors: Yu, Qiuhong Lu, Yang Luo, Rongjie Liu, Xianming Huo, Kaifu Kim, Jang Kyo He, Jun Luo, Yongsong: Issue Date: 2018
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李小虎-上海交通大学海洋学院官网-上海交大海洋学院 SJTU

from in situ sulphur isotopes. Geological Magazine, 2019,156(6): 989-1002. 8. Meng X.W., Li X.H*., Chu F.Y., et al. Trace element and sulfur isotope compositions for pyrite across the mineralization zones of a sulfide chimney from the East 2020
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In Situ Multiple Sulfur Isotope and S/Se Composition of

Whole-rock and in situ S/Se values (~810–3115) of magmatic sulfides and their host rocks are consistent with S loss during postmagmatic hydrothermal alteration, negating their use in interpreting the origin of S. Values of ∆ 33 S ~0 indicate no record of the assimilation of Archaean sulfur.
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Tri-Functional Copper Sulfide as Sulfur Carrier for High

2017-5-16 Copper sulfide/sulfur composite, containing highly dispersed CuS, Cu 2 S and sulfur, is obtained via a facile one-step reaction of copper chloride and sodium thiosulfate. Based on the total mass of composite, a high initial capacity of 782.4 mAh g −1 with high coulombic efficiency of 97.4% is obtained, and after 50 cycles, the discharge capacity can still be retained at 580.2 mAh g −1.
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Chapter 6 Copper Production Technology

1996-11-20 Chapter 6 Copper Production Technology The last boomin technological innovation for the copper industry occurred in the first two dec-ades of this century, whenopen pit mining, flo- tation concentration,and the reverberatory
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Recovery of Copper by Solution Mining Methods

2015-7-23 copper sulfides, inadequate contact of the leach solutions with soluble copper minerals (i.e. channeling) and poor oxygenation (O’Gorman et. al, 2004). The proposed in-situ project at Florence, Arizona will introduce dilute sulfuric acid solutions (99.7% water and 0.3% H 2 SO 4 by volume) via injection wells to the copper-
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(PDF) Novel Copper(II) Thiodibenzoic Acid Coordination

Novel Copper(II) Thiodibenzoic Acid Coordination Polymers by in situ Extrusion of Sulfur from 2,2′-Dithiodibenzoic Acid and the Unique Oxidation of Disulfide to Sulfate 6 Pages Zeitschrift für anorganische und allgemeine Chemie, 2015
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Supergene Oxidation of Copper Deposits: Zoning and

2011-5-30 being oxidized, including the formation of exotic copper deposits, and (2) through in situ oxidation of a copper-bearing sulfide resource. Importantly, the ﬁrst type of copper oxide system requires copper transportation from a source region, but the protore does not need to have high copper content if leaching and precipitation are efﬁcient.
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In Situ -formed Li 2S in Lithiated Graphite Electrodes for

2019-12-12 In Situ-formed Li 2S in Lithiated Graphite Electrodes for Lithium-Sulfur Batteries (PVdF) binder was prepared on a copper foil by a slurry-casting method. For assembling the half cells for lithiation, 20 µL of liquid carbonate electrolyte was added onto the graphite electrode. The cells were galvanostatically discharged to 0.01 V at
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Copper(I)‐Catalyzed Asymmetric Interrupted Kinugasa

2020-11-23 A copper(I)-catalyzed asymmetric, three-component interrupted Kinugasa reaction has been developed. Diverse chiral sulfur-containing chiral β-lactams with two consecutive stereogenic centers were synthesized in one step from readily available starting materials in good yields and with excellent diastereo- and enantioselectivity.
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学术成果何川教师个人主页南方科技大学

Sulfur Stereogenic Centers in Transition-Metal-Catalyzed Asymmetric C–H Functionalization: Generation and Utilization Labile Cu(I)-Catalyst/Spectator Cu(II)-Species in Copper-Catalyzed C–C Coupling Reaction: Operando IR, In situ XANES/EXAFS Evidence
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李小虎-上海交通大学海洋学院官网-上海交大海洋学院 SJTU

from in situ sulphur isotopes. Geological Magazine, 2019,156(6): 989-1002. 8. Meng X.W., Li X.H*., Chu F.Y., et al. Trace element and sulfur isotope compositions for pyrite across the mineralization zones of a sulfide chimney from the East 2020
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