Results 21 to 30 of about 11,676 (255)

Quantitative Research for Global Iron Ore Breakeven Operating Cost Based on BIF-type Enriched Mineralization Characteristics

open access: yesYankuang ceshi, 2017
The benchmark comparative price between global seaborne iron ore and Chinese domestic iron ore is based on free on board (FOB) or cost, insurance and freight (CIF), resulting in imprecise market pressure price estimation for Chinese domestic iron ore ...
WANG Wei-ping, CHEN Yu-chuan
doaj   +1 more source

Tuning the optoelectronic properties of hematite with rhodium doping for photoelectrochemical water splitting using density functional theory approach

open access: yesScientific Reports, 2021
Hematite (Fe2O3) is one of the best candidates for photoelectrochemical water splitting due to its abundance and suitable bandgap. However, its efficiency is mostly impeded due to the intrinsically low conductivity and poor light absorption.
Abdur Rauf   +6 more
doaj   +1 more source

Magnetite‐Free Sn‐Doped Hematite Nanoflake Layers for Enhanced Photoelectrochemical Water Splitting

open access: yesChemElectroChem, 2022
In the present work, we report a preparation strategy for hematite phase‐pure photoanodes consisting of Sn‐doped hematite nanoflakes/hematite thin film bilayer nanostructure (Sn‐HB).
Dr. Hyo‐Jin Ahn   +6 more
doaj   +1 more source

Effect of particle size on flotation separation of hematite and quartz

open access: yes工程科学学报, 2020
Generally, the flotation performance of mineral particles in a wide size range is usually poor, which can be attributed to the high reagent consumptions and low floatability differences between valuable and gangue minerals. Classification flotation is an
Dong LI   +6 more
doaj   +1 more source

HEMATITE-CARBONATE ROCKS OF THE YUBILEYNOE MASSIVE SULFIDE DEPOSIT (SOUTH URALS): EVIDENCE OF REPLACEMENT OF SULFIDE CLASTS AND HYALOCLASTS [PDF]

open access: yesМинералогия
The article considers textural and structural features of hematite-carbonate rocks associated with carbonate-sulfide clastic ores of the Yubileynoe massive sulfide deposit, South Urals.
A.S. Tseluyko   +4 more
doaj   +1 more source

Revealing the synergy of Sn insertion in hematite for next‐generation solar water splitting nanoceramics

open access: yesInternational Journal of Ceramic Engineering & Science, 2020
Hematite nanoceramics is considered as one of the most promised materials for photoelectrochemical (PEC) water splitting due to its remarkable characteristics such as low band gap, earth abundant composition and stability. In general, the hematite design
Karen C. Bedin   +4 more
doaj   +1 more source

Facile Adjustment of Exposed Crystal Facet of Hematite Derived-From Goethite to Enhance Cr (VI) Sorption

open access: yesCrystals, 2023
The (110) facets of hematite have excellent adsorption performance for chromium. We aim to obtain hematite with a large specific surface area and exposed (110) facets by using natural needle-like goethite as the precursor.
Yuxin Li   +4 more
doaj   +1 more source

Mechanism of Carbothermic Reduction of Hematite in Hematite–Carbon Composite Pellets

open access: yesISIJ International, 2007
Isothermal reduction experiments are carried out to study carbothermic reduction of hematite in hematite–graphite composite pellets. The carbothermic reduction is dominated by the direct reduction at the initial stage of reduction, and it is determined by the indirect reduction together with the carbon solution loss reaction when the CO partial ...
Yang, Jian   +2 more
openaire   +2 more sources

Green hematite depression for reverse selective flotation separation from quartz by locust bean gum

open access: yesScientific Reports, 2023
Reverse cationic flotation is currently the main processing technique for upgrading fine hematite from silicates. Flotation is known as an efficient method of mineral enrichment that deals with possibly hazardous chemicals.
Mehrdad Kordloo   +5 more
doaj   +1 more source

Synthesis and Characterization of Hematite Nanoparticles using Ultrasonic Sonochemistry Method

open access: yesInternational Journal of Technology, 2017
This paper presents an investigation on the method for synthesizing hematite nanoparticle using ultrasonic sonochemistry. The effect of various bases with different basicity strengths, i.e.
Munawar Khalil   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy