Results 11 to 20 of about 13,870 (267)

Biofibrous nanomaterials for extracting strategic metal ions from water

open access: yesExploration, 2022
AbstractStrategic metals play an indispensable role in the related industries. Their extraction and recovery from water are of great significance due to both their rapid consumption and environmental concern. Biofibrous nanomaterials have shown great advantages in capturing metal ions from water. Recent progress in extraction of typical strategic metal
Weihua Zhang   +6 more
openaire   +3 more sources

Mineralization of the Liwu large-scale stratiform copper deposits in Sichuan Province, China: Constraints from fluid inclusions

open access: yesChina Geology, 2023
: The Liwu stratiform copper deposit is located in the northwestern Jianglang dome, western China. Current studies mainly focus on the genetic type and mineralization of this deposit. Detailed fluid inclusion characteristics of metallogenic period quartz
Hua-yun Yuan   +8 more
doaj   +1 more source

Rare Metal as a National Strategic Material [PDF]

open access: yesJournal of Korean Powder Metallurgy Institute, 2009
희유금속(稀有金屬, rare metal)은 1 지각 내에 존 재량이 적거나 추출이 어려운 금속자원중 현재 산업 적 수요가 있고 향후 수요 신장이 예상되는 금속원 소, 2 극소수의 국가에 매장과 생산이 편재되어 있 거나 특정국에서 전량을 수입해 공급에 위험성이 있 는 금속원소로 정의하며 국내에서는 56개 원소를 희 유금속으로 분류하고 있다. 이는 학술적 기준이 아닌 산업적 기준이어서 희유 금속으로 분류되는 원소는 국가 혹은 시대에 따라 대 상이 변화될 수 있는데, Rare Metal Hand Book은 48개 원소, 미국은 41개 원소, 그리고 일본은 55개 원소로 정의하고 있다.
Soo-Young Lee   +5 more
openaire   +1 more source

An Innovative Method of Leaching of Battery Masses Produced in the Processing of Li-Ion Battery Scrap

open access: yesApplied Sciences, 2023
This paper presents comparative experimental results for the single-stage and two-stage counter-current acid leaching of battery masses, with the addition of a booster, from different types of LIB waste.
Katarzyna Leszczyńska-Sejda   +10 more
doaj   +1 more source

The development of numerical forecasting systems of primary sources of gold on the results of placer sampling in the example Vagran placer cluster (North Urals)

open access: yesGeoresursy, 2020
Based on the results of field research, as well as data from stock reports, two types of placer gold were identified within the Vagran placer cluster, which are indicators of primary mineralization.
Alexander V. Lalomov   +2 more
doaj   +1 more source

Experimental Study on Recovery of Super Pure Iron Concentrate from an Iron Concentrate in Sichuan

open access: yesKuangchan zonghe liyong, 2022
The iron grade of a iron concentrate in Sichuan is 64.56%, and the content of SiO2 and Al2O3 is 5.50% and 2.01% respectively. Material composition research shows that iron minerals are mainly in the form of magnetic iron.
Ting He   +4 more
doaj   +1 more source

CR3 Update: Recycling of Strategic Metals [PDF]

open access: yesJOM, 2012
3 ), focuses on the recycling of strategic metals. The Center for Resource Recovery & Recycling is a research center established by Worcester Polytechnic Institute, Colorado School of Mines, and K.U. Leuven.
openaire   +1 more source

Approach to recover strategic metals from brines [PDF]

open access: yes, 1981
The objective of the proposed research is to evaluate hypersaline brines from geothermal sources and salt domes as possible sources for some strategic metals. This research is suggested because several previous analyses of brine from geothermal wells in the Imperial Valley, California, and from Gulf Coast salt domes, indicate near commercial values for
Raber, E., Harrar, J., Gregg, D.
openaire   +2 more sources

Effect of Alkyl Substituents on the Hydrogen Bonding and Molecular Structure of Benzophenylhydroxamic Acids Crystal structure of UO2 Complex of p-Isopropylbenzophenylhydroxamic Acid [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 1995
The effect of alkyl substituents on the C-phenyl and/or the N-Phenyl ring of benzophenylhydroxamic acid on their molecular structure and hydrogen bonding has been investigated. The predominant configuration in CHCl3 is determined by steric and electronic
Masoud Hojjatie   +4 more
doaj  

Durability of alkali-activated materials with different C–S–H and N-A-S-H gels in acid and alkaline environment

open access: yesJournal of Materials Research and Technology, 2022
This work explores the durability of alkali-activated materials exposed to acidic and alkaline environments to analyze and evaluate their applications. The alkali-activated materials of metakaolin and metakaolin-mine tailings were immersed in solutions ...
Min Yang   +5 more
doaj   +1 more source

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