Explanipedia

Migration behavior of Pb and Bi impurities during industrial silicon smelting Open

Chuang LIU, Pengfei Xing, Xinyang Zhang, Xinhe Yang, Shuxia Yao , et al. · 2025

Organosilicon are widely used in strategic emerging industries such as national defense, high-end equipment, and biomedicine due to their superior properties. Industrial silicon serves as the primary raw material for organosilicon producti…

Oxidative volatilization mechanism and kinetics of stibnite at low temperature Open

Jiang Liu, Chaobo Tang, Qiang Zhu, Jianguang Yang, Tianxiang Nan , et al. · 2025

Electrochemical mechanism and kinetics of electrodissolution-coupled hafnium alkoxide synthesis in tetraethylammonium-chloride-based anhydrous system Open

Shuai Li, Shenghai Yang, Yong-ming CHEN, Chaobo Tang, Yanqing Lai , et al. · 2024

Electrodissolution-coupled hafnium alkoxide synthesis (EHS) is a promising pathway for efficient electro- synthesis. It employs simultaneous heterogeneous reactions of Hf dissolution and ethanol dehydrogenation, and spontaneous solution-ba…

One-step electrolytic reduction desulfurization of Sb2S3 in different molten salts Open

Qiang Zhu, Jianguang Yang, Chaobo Tang, Ruize Ding, Tianxiang Nan , et al. · 2023

A comparative analysis of different molten salt systems was conducted, including NaCl−KCl, NaCl−CaCl2, NaCl−Na2CO3, NaCl−KCl−CaCl2, and NaCl−KCl−Na2CO3. The phase diagrams, thermal stability, and solubility of Sb2S3 in molten salt systems …

Interfacial Adsorption Mechanism of Diethyldithiocarbamate in High-Sulfur Residue Flotation Open

Hong Liu, Jing He, Tao Luo, Jie Dai, Shuqiong Cao , et al. · 2023

Diethyldithiocarbamate (DDTC) is employed in the sulfide ore flotation process due to its excellent collection performance. Herein, we investigated the interfacial adsorption behavior of DDTC on the four main mineral phases of high-sulfur …

Interfacial Adsorption Mechanism of Diethyldithiocarbamate in High-Sulfur Residue Flotation Open

Hong Liu, Jing He, T. Luo, Jie Dai, Shuqiong Cao , et al. · 2023

Diethyldithiocarbamate (DDTC) has been employed in the sulfide ore flotation process, due to its excellent collection performance. Herein, we investigated the interfacial adsorption behavior of DDTC on four mineral phases of high-sulfur re…

Anodic Behavior of Hafnium in Anhydrous Electrodissolution-Coupled Hafnium Alkoxide Synthesis Open

Shuai Li, Shenghai Yang, Pengfei Zhao, Yongming Chen, Chaobo Tang , et al. · 2023

The electrodissolution-coupled hafnium alkoxide (Hf(OR)4, R is alkyl) synthesis (EHS) system, which has significant environmental and economic advantages over conventional thermal methods, serves as a promising system for green and efficie…

Leaching kinetics of de-lithium residue from spent ternary lithium-ion battery cathodic materials with starch as reductant Open

Wei-lun LI, Yong-ming CHEN, Shuai LI, Chang-hong WANG, Yun Li , et al. · 2023

Starch was employed as a reductant for the recovery of Ni, Co, and Mn from ternary lithium-ion batteries (LIBs) cathodic materials de-lithium residue, and the leaching kinetics and mechanism were studied. The effects of stirring speed, lea…

Mechanism and Application of Seed-Induced Goethite Crystal Growth for Iron Removal from Rich-Zinc Solution Open

Qiang Zhu, Yang Jian guang, Tianxiang Nan, Weizhi Zeng, Shi‐Yang Tang , et al. · 2023

Hydrometallurgical process for extracting bismuth from by-product of lead smelting based on methanesulfonic acid system Open

Tianxiang Nan, Jianguang Yang, Chaobo Tang, Wenchao Wang, Wei Long , et al. · 2022

A new hydrometallurgical process based on the methanesulfonic acid system was proposed to extract the bismuth efficiently from by-products of lead smelting. The bismuth extraction process includedelectrorefining, oxidation leaching, and el…

Clean antimony production from stibnite concentrate with goethite residue co-treatment for zinc, iron, sulfur conservation Open

Yun Li, Haotian Xue, Pekka Taskinen, Ari Jokilaakso, Chaobo Tang , et al. · 2021

PbSO4 Reduction Mechanism and Gas Composition at 600–1000°C Open

Yun Li, Pekka Taskinen, Yuejun Wang, Shenghai Yang, Chaobo Tang , et al. · 2021

High-temperature thermodynamics of ZnO–NH4Cl–H2O system Open

Duoqiang Zhao, Shenghai Yang, Yongming Chen, Yafei Jie, Jing He , et al. · 2020

On the basis of the principles of simultaneous equilibrium, conservation of mass, and aqueous electronic charge neutrality and the correspondence principle of ion entropy, the high-temperature thermodynamics of the ZnO–NH4Cl–H2O system was…

Effects of Polyoxyethylene Ether Addition on the Nucleation and Microtopography of Zinc Electrodeposited in a Neutral Electrolyte Open

Duoqiang Zhao, Yafei Jie, Yongming Chen, Chaobo Tang, Jing He , et al. · 2020

Sustainable phase-conversion method for antimony extraction and sulfur conservation and waste treatment at low temperature Open

Yun Li, Haotian Xue, Pekka Taskinen, Shenghai Yang, Chaobo Tang , et al. · 2020

Leaching of hemimorphite in neutral solution at high temperature Open

Duoqiang Zhao, Shenghai Yang, Yunmin Chen, Chaobo Tang, Jianbiao He , et al. · 2020

The leaching behavior of hemimorphite in neutral solution (NH4 +-Cl--H2O) was investigated at high temperature (T > 100?C) under a range of experimental conditions. Thermodynamic calculations indicate that the tendency of dehydration of si…

Reaction Behaviors of Associated Minerals in Molten Salt Smelting of Stibnite and Kilogram-Class Trials Open

Zhen Ouyang, Longgang Ye, Chaobo Tang, Yuntao Xin · 2019

The molten salt metallurgy of Sb, which involves the smelting of stibnite in a binary NaCl-Na2CO3 salt with sulfur-fixing and the addition of a reductant, has been proposed as a clean method for Sb extraction. However, the reacting behavio…

Recycling of Spent Lead-Acid Battery for Lead Extraction with Sulfur Conservation Open

Yun Li, Shenghai Yang, Pekka Taskinen, Jing He, Yongming Chen , et al. · 2019

Cleaner Recycling of Spent Lead-Acid Battery Paste and Co-Treatment of Pyrite Cinder via a Reductive Sulfur-Fixing Method for Valuable Metal Recovery and Sulfur Conservation Open

Yun Li, Shenghai Yang, Pekka Taskinen, Yongming Chen, Chaobo Tang , et al. · 2019

This study proposes a cleaner lead-acid battery (LAB) paste and pyrite cinder (PyC) recycling method without excessive generation of SO2. PyCs were employed as sulfur-fixing reagents to conserve sulfur as condensed sulfides, which prevente…

Spent Lead-Acid Battery Recycling via Reductive Sulfur-Fixing Smelting and Its Reaction Mechanism in the PbSO4-Fe3O4-Na2CO3-C System Open

Yun Li, Shenghai Yang, Pekka Taskinen, Jing He, Yongming Chen , et al. · 2019

Cleaner Extraction of Lead from Complex Lead-Containing Wastes by Reductive Sulfur-Fixing Smelting with Low SO2 Emission Open

Yun Li, Shenghai Yang, Wenrong Lin, Pekka Taskinen, Jing He , et al. · 2019

A novel and cleaner process for lead and silver recycling from multiple lead-containing wastes, e.g., lead ash, lead sludge, lead slag, and ferric sludge, by reductive sulfur-fixing smelting was proposed. In this process, coke and iron-con…

Novel recycling process for lead-acid battery paste without SO2 generation - Reaction mechanism and industrial pilot campaign Open

Yun Li, Shenghai Yang, Pekka Taskinen, Jing He, Fangwen Liao , et al. · 2019

Phase and Morphology Transformations in Sulfur-Fixing and Reduction Roasting of Antimony Sulfide Open

Zhen Ouyang, Longgang Ye, Chaobo Tang, Yifeng Chen · 2019

Metallurgical extraction of antimony (Sb) currently has the limitations of high energy consumption and adverse environmental impact. In this study, we proposed a cleaning process to extract Sb by metallurgy and beneficiation based on S-fix…

Hydrometallurgical Process for Zinc Recovery from C.Z.O. Generated by the Steelmaking Industry with Ammonia–Ammonium Chloride Solution Open

Shenghai Yang, Duoqiang Zhao, Yafei Jie, Chaobo Tang, Jing He , et al. · 2019

In this research, some experimental steps were investigated to recover zinc contained in crude zinc oxide (C.Z.O.). In the first stage, the C.Z.O. was treated in NH3–NH4Cl–H2O solution to dissolve the metals. The optimized leaching conditi…

Thermodynamic and kinetics analysis of the sulfur-fixed roasting of antimony sulfide using ZnO as sulfur-fixing agent Open

Zhengbiao Ouyang, Y F Chen, Shubo Tian, Xiao Li, Chaobo Tang , et al. · 2018

Currently, the commercial antimony metallurgy is mainly based on pyrometallurgical processes and oxidative volatilization of Sb2S3 is an essential step. This step includes the problems of high energy consumption and low concentration of SO…

A New Pyrometallurgical Recycling Technique for Lead Battery Paste Without SO2 Generation—A Thermodynamic and Experimental Investigation Open

Yun Li, Yongming Chen, Chaobo Tang, Shenghai Yang, Lassi Klemettinen , et al. · 2018

Reductive-sulfurizing smelting treatment of smelter slag for copper and cobalt recovery Open

Yonggang Li, Shenghai Yang, Chaobo Tang, Y.M. Chen, Jianbiao He , et al. · 2017

Recovery of copper and cobalt from smelter slag using reductive-sulfurizing smelting method was performed in this study. The effects of reductive agent (coke), sulfurizing agent (pyrite), slag modifier (CaO) and smelting temperature and du…

Leaching Kinetics of Hemimorphite in Ammonium Chloride Solution Open

Duoqiang Zhao, Shenghai Yang, Yongming Chen, Chaobo Tang, Jing He , et al. · 2017

The leaching kinetics of hemimorphite (Zn4Si2O7(OH)2·H2O) in ammonium chloride solution was presented in detail. Effects of stirring speed (150–350 rpm), leaching temperature (75–108 °C), particle size of hemimorphite (45–150 μm), and the …

Electrochemical Behaviour of Hafnium in Anhydrous n-butanol Containing Tetraethylammonium Bromide Open

Changhong Wang, Shenghai Yang, Yongming Chen, Xiyun Yang, Biao Wang , et al. · 2016

One-Step Extraction of Antimony in Low Temperature from Stibnite Concentrate Using Iron Oxide as Sulfur-Fixing Agent Open

Yun Li, Yongming Chen, Haotian Xue, Chaobo Tang, Shenghai Yang , et al. · 2016

A new process for one-step extraction of antimony in low temperature from stibnite concentrate by reductive sulfur-fixation smelting in sodium molten salt, using iron oxide as sulfur-fixing agent, was presented. The influences of molten sa…

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