Results 81 to 90 of about 16,833 (252)
Thermal Decomposition of Synthetic Argentojarosite - Implications for Silver Production in Medieval Times [PDF]
, 2005 The thermal decomposition of argentojarosite has been studied by thermogravimetric, spectroscopic and infrared emission techniques. Dehydroxylation occurs in three stages at 228, 383, 463 degrees Celsius with the loss of 2, 3 and 1 hydroxyl units.
Frost, Raymond +3 more
core +2 more sources
Thiosulphate leaching for gold hydrometallurgy
Hydrometallurgy, 1995 Thiosulphate leaching of precious metals has been developed as an alternative and non-toxic technique to the conventional cyanidation. This process has advantages over cyanide in a decreased interference from foreign cations and a lower environmental impact.
Abbruzzese C +4 more
openaire +3 more sources
ChemElectroChem, EarlyView.This article explores the dynamics of replacing three silver atoms by one gold atom (galvanic replacement reaction [GRR]) within silver nanoparticles. The reaction is tracked experimentally using open circuit potential and then mathematically fitted to a sigmoidal kinetic function inspired by autocatalytic and enzymatic cascade reaction functions to ...
Bonito Aristide Karamoko, Yaovi Holade
wiley +1 more source
Determination of optimal conditions for pressure oxidative leaching of Sarcheshmeh Molybdenite concentrate using Taguchi method [PDF]
, 2009 The present research work is based on finding the optimum conditions for pressure oxidative leaching of the molybdenite concentrate to produce technical-grade molybdic oxide (MoO3) with high recovery through further treatment of the filtrate solution.
Cherrie, John W. +5 more
core +6 more sources
Crystallization of Cathode Active Material Precursors from Tartaric Acid Solution
ChemSusChem, Volume 18, Issue 6, March 15, 2025.This work investigates a novel approach for closing the gap between recycling and production of lithium‐ion battery cathode material. The new concept is based on antisolvent crystallization of metal carboxylates, which can be directly used as precursors in production of cathode material.
Chunyan Ma +5 more
wiley +1 more source
Lanthanum biosorption by different Saccharomyces cerevisiae strains [PDF]
, 2016 Biosorption can be a promising technology in rare earth metal separation and recovery due to the low costs of waste biomasses (used as biosorbents) and the high selectivity exploiting specific interaction between metals and biological active sites.
Altimari, Pietro +5 more
core +1 more source
ChemSusChem, EarlyView.This study investigated thermal decomposition and surface changes of lithium nickel manganese cobalt oxide (NMC) cathode, graphite anode, and polymeric separator from 100 to 800 °C, focusing on the 400–650 °C industrial range. A 500 °C treatment was optimal, removing all organic carbon within 1 h while preserving the NMC spinel structure and preventing
Anna Pražanová +5 more
wiley +1 more source
Feature Papers in Extractive Metallurgy
MetalsUnit metallurgical operation processes are usually separated into three categories: (1) hydrometallurgy (leaching, mixing, neutralization, precipitation, cementation, and crystallization) [...]
Srecko Stopic
doaj +1 more source
Research Progress on the Influence Law of Microstructure of Lead Alloys on Their Corrosion Resistance and Electrocatalytic Performance [PDF]
Cailiao BaohuLead alloys have been widely used in the hydrometallurgy domain owing to their excellent corrosion resistance and electrocatalytic performance.In the field of hydrometallurgy, the corrosion resistance of lead alloys with different microstructures plays ...
ZHOU Xinxin, CHEN Buming, GUO Jun, JIANG Cheng, GUO Zhongcheng
doaj +1 more source
Hydrometallurgy of the delta sulfide ores, second stage report [PDF]
, 1987 This report contains results of the Fluidized-Bed Leaching (FBL) initially adapted to improve Leaching-Flotation processing of Delta ores in sulfate solution. The research carried out in the continuous laboratory installation show, however, that the new,
Letowski, F., Rao, P.D.
core