High-efficiency dechlorination processes are crucial for the clean utilization of CuCl waste residue from zinc hydrometallurgical processes. A new method oxygen-enriched microwave roasting has been proposed to improve process. The cavity perturbation was used in this paper measure permittivity a at various temperatures and apparent densities. results show that temperature had more significant e...

Impurity removal is a momentous part of zinc hydrometallurgy process. In this paper, hybrid modeling method mechanism and parameter estimation was proposed on the basis not changing actual production process lead-zinc smeltery. Firstly, overall nonlinear dynamic model established, then deviation between theoretical value detected outlet ion concentration taken as objective function to establish...

Due to the fast material reaction in zinc hydrometallurgy, traditional national standard photometric method cannot capture characteristic information of target substances real time. Herein, a nitrogen protection device is built based on ultraviolet spectrophotometry, supplemented by programmable logic controller (PLC), form an automatic control system for direct detection (SO42−, Pb2+ and S2−) ...

It is estimated that electronic and electrical equipment discarded in 2021 weigh more than 57 million tonnes, less one-fifth of this waste (e-waste) recycled. The Printed Circuit Boards (PCBs) are the integral component any equipment, a useful type due to their nearly 30% metal content. This research aims explore hydrometallurgy technique recover precious metals from e-waste, transform material...

The growing number of decarbonization standards in the transportation sector has resulted an increase demand for electric cars. Renewable energy sources have ability to bring fossil fuel age end. Electrochemical storage devices, particularly lithium-ion batteries, are critical this transition’s success. This is owing a combination favorable characteristics such as high density and minimal self-...