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  1. No Access

    Chapter and Conference Paper

    The Effect of Anodic Potential on Surface Layers of Chalcopyrite during Ammonia–Ammonium Chloride Leaching

    The effect of the anodic on the composition and of the surface layer formed on during –ammonium was investigated. The anodic on the electrode was used for and dissolution of , and the resulting...

    **aoming Huaa, Yongfei Zheng, Qian Xu, **onggang Lu, Hongwei Cheng in Extraction 2018 (2018)

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    Chapter and Conference Paper

    Experimental Study on Dechlorination of Cold-Rolling Sludge at High-Temperature Roasting

    Hitherto, the content after dehydration in enterprises has reached up to 60%. However, it contains a lot of chlorine, which is the source of dioxins. And the presence of chlorine makes the possess high...

    Yi Li, Hongwei Cheng, Guangshi Li in 10th International Symposium on High-Tempe… (2019)

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    Chapter and Conference Paper

    Ab Initio Study on the Oxidation Mechanism of Millerite

    Millerite (NiS) as the important source for extraction has been investigated by density functional theory calculations to study the . Atomic oxygen adsorption and molecular oxygen adsorption on the (001) ...

    **aolu **ong, **onggang Lu, Guangshi Li in TMS 2019 148th Annual Meeting & Exhibition… (2019)

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    Chapter and Conference Paper

    Isothermal Sulphation Roasting of Nickel Sulphide Minerals in a Static Air Atmosphere

    offers the potential to simultaneously extract valuable metals from . In this study, the influences of temperature and addition on the sulphation of valuable metals were investigated under isothermal...

    Lizhen Wei, Caixiang Yu, Guangshi Li in 10th International Symposium on High-Tempe… (2019)

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    Chapter and Conference Paper

    Mechanism of the Chlorination Roasting of Nickel Sulphide Concentrate with Ammonium Chloride

    resources are mainly in the form of sulphides in China, and chlorination is one of the most important means of treating ore. This paper reports the results of an investigation of the of of flota...

    **aoyong Mei, Hongwei Cheng, Cong Xu in 10th International Symposium on High-Tempe… (2019)

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    Chapter and Conference Paper

    A Novel Depressant of Sodium Polyacrylate for Magnesite Flotation

    In order to inhibit effectively, a new macromolecule reagent, (SP), is introduced. results indicate that SP can strongly inhibit the of in a wide pH range. When pH = 9, the recovery of is 90%. Af...

    Hongwei Cheng, Changmiao Liu, Dong Dong, Zihu Lv, Fei Yang in Rare Metal Technology 2020 (2020)

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    Chapter and Conference Paper

    Enhanced Stability of B-Site W Doped Pr0.6Sr0.4Fe1-xWxO3-δ Ceramic Membranes for Water Splitting

    A series of perovskite-type (OTM) of Pr0.6Sr0.4Fe1-xWxO3-δ (PSFWx, x = 0, 0.1) were synthesized by method. The effects of W do** on the , , and performance were investigated systematically. With the inc...

    Yanbo Liu, Hongwei Cheng, **aofang Xu in TMS 2020 149th Annual Meeting & Exhibition… (2020)

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    Chapter and Conference Paper

    Synthesis of Na2(Ni, Fe)(SO4)2 Cathode Materials from Nickel Sulfide Concentrate by Combined Pyro- and Hydrometallurgical Processes

    In this study, a compact process was introduced to prepare the sulfate-based polyanionic nano cathode material Na2(Ni, Fe)(SO4)2 from sulfide concentrate. The Na2(Ni, Fe)(SO4)2 was synthesized with a four-step ...

    Guangshi Li, Lizhen Wei, Caixiang Yu in 11th International Symposium on High-Tempe… (2020)

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    Chapter and Conference Paper

    Synchronous Extraction of Valuable Metals from Low-Nickel Matte Using Ammonium Sulfate Roasting-Water Leaching Process

    Owing to suffering the poor recovery of valuable metals and the massive loss of Co metal by the traditional pyrometallurgical technology to process the low-nickel matte. Herein, a sulfate roasting followed by ...

    Qiangchao Sun, Hongwei Cheng, Qiang Zhang in Characterization of Minerals, Metals, and … (2021)