Results 61 to 70 of about 10,570,902 (260)

Synergistic extraction of critical metals from the oxalic leachate of spent FCC catalyst

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study introduces an improved hydrometallurgy process utilizing a synergistic approach to improve metal recovery from secondary sources of critical metals. It provides a more efficient alternative to traditional single‐extractant methods for separating critical metals from spent refinery catalysts.
Silindile Gumede, Amir H. Mohammadi, Mbuyu G. Ntunka   +2 more
wiley   +1 more source

Beneficiation and extraction of niobium resources in the Bayan Obo deposit: A review

矿业科学学报
The Bayan Obo deposit is the world's largest iron-rare earth-niobium polymetallic deposit, characterized by "low grade, fine grain size, complex composition, and disseminated distribution", and is intimately intergrown with rare earth and iron minerals ...
LI Na, DUAN Chenlong, CUI Jianguo
doaj   +1 more source

Purification of Li2CO3 Obtained through Pyrometallurgical Treatment of NMC Black Mass from Electric Vehicle Batteries

ChemSusChem, Volume 18, Issue 6, March 15, 2025.
Lithium carbonate (Li2CO3) obtained from the black mass of recycled lithium batteries is dissolved in water under controlled conditions to remove lithium fluoride (LiF), which is present at a concentration of 3.08 % by weight. The dissolution is carried out at temperatures below 10 °C, and it has been demonstrated that lower temperatures result in ...
Laura Rosso, Lorena Alcaraz, Olga Rodríguez‐Largo, Félix A. López   +3 more
wiley   +1 more source

Process Mineralogy of a Lithium Ore in Africa

Kuangchan zonghe liyong
This is an article in the field of process mineralogy. The research degree of lithium ores abroad is low, and the ore not only has high lithium but also is associated with niobium, tantalum, rubidium, cesium and other beneficial elements.
Feiyan LIU, Baowei SUN, Xiong ZHOU, Youwei LIANG   +3 more
doaj   +1 more source

Failure characteristics analysis of the inclined interlayer during water‐soluble cavity construction of underground salt caverns for large‐scale energy storage

Deep Underground Science and Engineering, EarlyView.
In the process of water‐soluble cavern construction of salt cavern energy storage, since the interlayer does not dissolve in water easily, sudden collapse will cause engineering accidents such as bending and damage of the inner tube of the cavern.
Zenghui Zhao, Tianyu Li, Qing Ma, Junlong Shang, Jiaze Du, Ruizhe He   +5 more
wiley   +1 more source

Study on the Process Mineralogy for the Flotation Tailings of a Gold Mine in Shandong Province

Kuangchan zonghe liyong
This is anarticle in the field of process mineralogy. The grade of gold and sulfur in a gold mine from Shandong Province was 2.0 g/t and 1.56% respectively, which was a typical gold bearing ore with low sulfur.
Kai WU, Yingqiang MA, Hailong WANG, Hongliang DONG, Ruihui REN, Shuxin WANG   +5 more
doaj   +1 more source

Real‐time lithology identification while drilling based on drill cuttings image analysis with ensemble learning

Deep Underground Science and Engineering, EarlyView.
A lithology identification while drilling method was developed, integrating an automated cuttings sampling system, a smart drilling rig, and an ensemble learning model. Underground trials achieved 97.42% accuracy in real‐time identification of cuttings lithology and composition, enhancing hazard management and supporting unmanned drilling technology in
Kun Li, Ting Ren, Ningping Yao, Jon Roberts, Haitao Song, Zhongbei Li, Xueqiu He, Liang Zhao   +7 more
wiley   +1 more source

Enhanced Gold Ore Classification: A Comparative Analysis of Machine Learning Techniques with Textural and Chemical Data

Geosciences
Specific computational methods, such as machine learning algorithms, can assist mining professionals in quickly and consistently identifying and addressing classification issues related to mineralized horizons, as well as uncovering key variables that ...
Fabrizzio Rodrigues Costa, Cleyton de Carvalho Carneiro, Carina Ulsen   +2 more
doaj   +1 more source

Uranium: mineralogy, geochemistry, and the environment Reviews in mineralogy ;, v. 38./ editors, Peter C. Burns & Robert J. Finch.

, 2018
In English.Includes bibliographical references.Volume 38 of Reviews in Mineralogy provides detailed reviews of various aspects of the mineralogy and geochemistry of uranium.
Finch (Robert James),, Burns Peter C.,
core  

Critical expansion points: Mechanical signs of surrounding rock instability

Deep Underground Science and Engineering, EarlyView.
This study proposes the Rock Bearing‐Expansion Model (RockBEM) with critical expansion points (CEPs) to quantify post‐peak damage stages in deep‐buried rock masses via plane strain compression test (PSCT). CEP hysteresis&interval ratios reveal bearing performance dynamics and failure severity, advancing mechanistic insights into deep underground rock ...
Jiaqi Wen, Chang Deng, Haijun Wang, Lei Tang, Jihong Yu   +4 more
wiley   +1 more source