Results 21 to 30 of about 573,166 (314)

Integrated chlorination technology for producing alumina and silica from ash-slag waste of the TPP of Kazakhstan

open access: yesJournal of Materials Research and Technology, 2023
The paper proposes a technology for the disposal of accumulated ash-slag waste in Kazakhstan using chlorinated ash roasting with further leaching of the cinder with hydrochloric acid.
Nurlan Dosmukhamedov   +2 more
doaj   +1 more source

The study of pelletizing of mixed hematite and magnetite ores [PDF]

open access: yesScience of Sintering, 2019
The present study aims to investigate the use of mixed hematite and magnetite ores in iron ore pellet production. Pelletizing tests were carried out on the hematite and magnetite premixed pellet feed.
Kumar P.S.   +3 more
doaj   +1 more source

Desilication Research of Sichuan Phosphogypsum by Flotation

open access: yesKuangchan zonghe liyong, 2023
This is a paper in the field of mineral processing engineering. Phosphogypsum is a by-product produced during the production of wet process phosphoric acid.
Junwang Li, Yunhai Zhang, Zhenfeng Hu
doaj   +1 more source

¿Raúl, te acuerdas…? Neruda y González Tuñón ante la Guerra Civil española [PDF]

open access: yes, 2004
 The mechanism mass change in system «gas–coalhydrargium  a liquid» is considered. The mathematical model mass change off water of mineral oils is developed.
А.Й. Пашинський   +2 more
core   +3 more sources

Technical Transformation and Productive Practice of Mineral Processing Flowsheet about Jinchuan Copper-Nickel Sulfide Ore

open access: yesKuangchan zonghe liyong, 2022
Content of MgO in Jinchuan copper-nickel sulfide ore is high, mainly serpentine. The production quota show that the content of MgO was fluctuates greatly in concentrate and exceeds the standard seriously, and the metal grade is high in tailings and the ...
Liangzhong Ding, Zong Dai, Zhiqing He
doaj   +1 more source

Improving Beneficiation of Copper and Iron from Copper Slag by Modifying the Molten Copper Slag

open access: yesMetals, 2016
In the paper, a new technology was developed to improve the beneficiation of copper and iron components from copper slag, by modifying the molten slag to promote the mineralization of valuable minerals and to induce the growth of mineral grains.
Zhengqi Guo   +4 more
doaj   +1 more source

Mineral Processing by Short Circuits in Protoplanetary Disks

open access: yes, 2013
Meteoritic chondrules were formed in the early solar system by brief heating of silicate dust to melting temperatures. Some highly refractory grains (Type B calcium-aluminum-rich inclusions, CAIs) also show signs of transient heating.
D'Alessio, Paola   +4 more
core   +1 more source

Reaction Mechanism of Siderite Lump in Coal-Based Direct Reduction

open access: yesHigh Temperature Materials and Processes, 2016
Siderite is one of the significant iron ore resources in China and yet is difficult to upgrade by traditional beneficiation processes. A process of coal-based direct reduction–magnetic separation was successfully developed for the beneficiation of ...
Zhu Deqing   +3 more
doaj   +1 more source

Experimental study of the role of physicochemical surface processing on the IN ability of mineral dust particles [PDF]

open access: yes, 2011
During the measurement campaign FROST 2 (FReezing Of duST 2), the Leipzig Aerosol Cloud Interaction Simulator (LACIS) was used to investigate the influence of various surface modifications on the ice nucleating ability of Arizona Test Dust (ATD ...
Buchholz, Angela   +18 more
core   +4 more sources

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

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