Results 51 to 60 of about 224,796 (336)

MINERALOGY OF THE OVERBURDEN ROCKS OF THE KOKLAN W-MO DEPOSIT (SOUTH URALS) [PDF]

open access: yesМинералогия, 2015
The Koklan W-Mo deposit is overlapped by Mesozoic-Cenozoic rocks 120–140 m thick, which may be subdivided in four members on the basis of variable proportions of the rock-forming minerals (quartz, hydromica (with glauconite), smectites and X-ray ...
E.V. Belogub   +3 more
doaj  

Polyethylene Terephthalate Monomerization via Glycolysis and Methanolysis Using Metal‐Free Basic Carbocatalyst

open access: yesChemCatChem, EarlyView.
The image represents a sustainable solution via chemical recycling of waste PET bottle‐to‐rPET bottle via monomerization process (glycolysis and methanolysis) in the presence of metal‐free basic carbocatalyst. Abstract The giant amount of disposed Polyethylene Terephthalate (PET) has become a big environmental challenge.
Jose Pablo Chacon Castro   +3 more
wiley   +1 more source

MICROTOPOCHEMISTRY OF MARCASITE-PYRITE NODULE IN ILLITE-HEMATITE GOSSANITES OF THE LAHANOS MASSIVE SULFIDE DEPOSIT (PONTIDES, TURKEY): LA-IСP-MS DATA [PDF]

open access: yesМинералогия, 2017
In addition to black shales, the sulfide nodules can occur in red-colored aposulfide deposits, e.g., illite-hematite gossanites of the Lahanos massive sulfide deposit (Pontides, Turkey), where the marcasite-pyrite nodules are located at the base of the ...
V.V. Maslennikov   +3 more
doaj  

Mineralogy and Surface Composition of Asteroids

open access: yes, 2015
Methods to constrain the surface mineralogy of asteroids have seen considerable development during the last decade with advancement in laboratory spectral calibrations and validation of our interpretive methodologies by spacecraft rendezvous missions ...
Burbine, Thomas H.   +4 more
core   +1 more source

Dynamic accelerated solvent extraction for faster oil sands oil, water, and solids determination and solids cleaning

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
25 g of oil sands extracted by dynamic accelerated solvent extraction, yielding 177 mL of bitumen–toluene extract and clean dried solids in approximately 12 min. Abstract Determining the oil, water, and solids (OWS) contents of oil sand is essential to many aspects of the oil sands industry including mine planning, optimization of extraction processes,
Ceanna Ting‐Yan Cheung   +1 more
wiley   +1 more source

SULFUR ISOTOPIC COMPOSITION OF SULFIDES FROM THE DESTRUCTION PRODUCTS OF PALEOSMOKER FROM THE YUBILEYNOE VHMS DEPOSIT (SOUTHERN URALS) [PDF]

open access: yesМинералогия, 2015
Variations in sulfur composition of sulfides from fragments of the paleosmoker chimneys, sulfide turbidites, and products of their seafloor alteration are determined.
A.S. Tseluyko   +3 more
doaj  

Purification of Li2CO3 Obtained through Pyrometallurgical Treatment of NMC Black Mass from Electric Vehicle Batteries

open access: yesChemSusChem, Volume 18, Issue 6, March 15, 2025.
Lithium carbonate (Li2CO3) obtained from the black mass of recycled lithium batteries is dissolved in water under controlled conditions to remove lithium fluoride (LiF), which is present at a concentration of 3.08 % by weight. The dissolution is carried out at temperatures below 10 °C, and it has been demonstrated that lower temperatures result in ...
Laura Rosso   +3 more
wiley   +1 more source

ZIRCONOLITE OF ALKALINE PEGMATITES OF THE VISHNEVYE MOUNTAINS: THE FIRST FINDINGS IN THE SOUTH URALS [PDF]

open access: yesМинералогия, 2018
Zirconolite, a complex oxide with an idealized formula (Ca,REE)Zr(Ti,Fe,Nb)2O7 , is an accessory mineral of Nb ores from alkali pegmatites and carbonatites of the Vishnevogorsk alkaline complex (South Urals, Russia).
V.A. Popov   +3 more
doaj  

Tertiary-Quaternary subduction processes and related magmatism in the Alpine-Mediterranean region [PDF]

open access: yes, 2006
During Tertiary to Quaternary times, convergence between Eurasia and Africa resulted in a variety of collisional orogens and different styles of subduction in the Alpine-Mediterranean region.
Downes, Hilary   +2 more
core   +1 more source

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