Results 1 to 10 of about 118,822 (346)

Effect of Particle Size Distribution and Type of Mineral on the Blaine Number [PDF]

open access: yesInternational Journal of Mining and Geo-Engineering, 2020
This study investigates factors affecting the Blaine number, including type, shape, and size distribution of the grains, d80 effect, and retention time of materials in the mill.
Marzieh Hosseini-Nasab   +1 more
doaj   +1 more source

Investigations on the Reverse Flotation of Quartz/Hematite Using Pullulan as a Novel Depressant

open access: yesMetals, 2023
The traditional hematite depressant starch has the disadvantages of poor solubility and high viscosity. In this study, a novel hematite depressant, pullulan, with better performance and flotation effect than starch was found.
Wenjie Han   +4 more
doaj   +1 more source

Thermally-induced color transformation of hematite: insight into the prehistoric natural pigment preparation

open access: yesHeliyon, 2022
Since the prehistoric era, hematite has been known as a reddish color pigment on rock art, body paint, and decorating substances for objects discovered almost worldwide.
Nadya Nurdini   +5 more
doaj   +1 more source

Optimal Water Recovery with Emphasis on Flocculant Consumption Rate in the Thickener [PDF]

open access: yesآب و فاضلاب, 2017
Water plays a vital role in mineral processing as evidenced by the approximately 2 to 3 tons of water used for the treatment of one ton of ore. A major portion of this water may be recovered in thickeners.
Marzieh Hosseininasab   +1 more
doaj   +1 more source

Adsorption of sodium oleate at the microfine hematite/aqueous solution interface and its consequences for flotation

open access: yesInternational Journal of Mining Science and Technology, 2023
The adsorption of sodium oleate (NaOL) at the microfine hematite/aqueous solution interface was investigated in this paper. Experimental research indicated that negative effects stemmed from the dissolution of the microfine hematite (D50=19.21 μm) could ...
Shaojun Bai   +5 more
doaj   +1 more source

Characterization of Oil Spots on Black-Glazed Teabowl Made in Song Dynasty by Time-of-Flight Secondary Ion Mass Spectrometry [PDF]

open access: yesZhipu Xuebao, 2023
The ancient porcelain is the treasure of Chinese civilization. In this paper, multiple surface analysis tools were applied to characterize the attractive silvery bright spots on the glaze of black-glazed tea bowl fragment.
XU Zi-qi1,2   +4 more
doaj   +1 more source

Evaluating the Compatibility of Hematite (U‐Th)/He Data and Hematite‐Carried Secondary Magnetizations: An Example From the Colorado Front Range

open access: yesGeochemistry, Geophysics, Geosystems, 2023
Ancient magnetization(s), often recorded by hematite (Fe2O3), provide key paleomagnetic constraints on plate interactions through time. Primary remanent magnetizations may be modified or overprinted by secondary processes that complicate interpretations ...
Jordan L. Jensen   +2 more
doaj   +1 more source

Ultrasonic treatment improves the performance of starch as depressant for hematite flotation

open access: yesUltrasonics Sonochemistry, 2022
In this study, ultrasonic treatment was introduced to enhance the depressive performance of starch in the reverse flotation separation of fine hematite from quartz. It was found that after ultrasonic treatment, starch was not only able to impart a higher
Ming Zhang, Zeping Xu, Lei Wang
doaj   +1 more source

Low-Frequency Resonant Magnetoelectric Effects in Layered Heterostructures Antiferromagnet-Piezoelectric

open access: yesSensors, 2023
Magnetic field sensors using magnetoelectric (ME) effects in planar ferromagnetic-piezoelectric heterostructures convert a magnetic field into an output voltage.
Dmitri A. Burdin   +5 more
doaj   +1 more source

Possible Formation Mechanism of Lunar Hematite

open access: yesMagnetochemistry, 2023
Hematite, a ferric mineral with diagnostic features in the visible and infrared spectral range, has recently been discovered in the polar regions of the Moon by the Chandrayaan-1 Moon Mineralogy Mapper (M3).
Yue Fu   +10 more
doaj   +1 more source

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