Results 11 to 20 of about 148,639 (308)

Technospheric Mining of Critical and Strategic Metals from Non-Ferrous Slags

open access: yesMetals
The technosphere consists of material stocks accumulated by human activities, which can include processing residue, such as slag. Various smelting processes generate slag, and some valuable elements are concentrated in this by-product.
Bona Lim   +2 more
doaj   +3 more sources

The Role of Governmental Credit in Hemispheric Trade [PDF]

open access: yes, 1941
Ion channels in the plasma membrane are important for the apoptotic process. Different types of voltage-gated ion channels are up-regulated early in the apoptotic process and block of these channels prevents or delays apoptosis.
Fredrik Elinder   +3 more
core   +4 more sources

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

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

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

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

Non-ferrous Metals Manufacturing: Vision for 2050 and Actions Needed [PDF]

open access: yes, 2017
The European non-ferrous metals manufacturing industry is a strategic sector directly employing 500,000 people and supplying products for numerous crucial downstream industrial sectors.
BONTOUX LAURENT   +1 more
core   +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

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

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

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