The core–shell sorbent material is highly stable and therefore, reusable over several successive extraction cycles without degradation. The extraction performance is determined at different water temperatures, different water sources, and different magnetic core materials and evaluated compared to heptadecanoic acid functionalized magnetite.
Thus, magnetic molecularly imprinted nanoparticles had high adsorption capacity (0.11 mg mg(-1)), controlled selectivity and direct magnetic separation (22.1 emicro g(-1)) in crude samples. After preconcentration and purification with magnetic MIPs nanoparticles, a sensitive chemiluminescence method was developed for determination of lysozyme ...
Magnetically Recoverable Magnetite-Reduced Graphene Oxide as a Demulsifier for Surfactant Stabilized Crude Oil-In-Water Emulsion PLoS One. 2020 Apr 30;15(4):e0232490. doi: 10.1371/journal.pone.0232490. eCollection 2020. Authors Xin Hui Yau 1 ...
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crude oil: total detectable hydrocarbons: ... One such example is the magnetic modification of A. borkumensis with cationic polyelectrolyte modified magnetite nanoparticles. The 70–100 nm thick shell of magnetic nanoparticles that was loosely bound to the cell surface induced magneto-responsiveness (Figure 10C).
Iron ores are rocks and minerals from which metallic iron can be extracted. There are four main types of iron ore deposit: massive hematite, which is the most commonly mined, magnetite, titanomagnetite, and pisolitic ironstone. These ores vary in colour from dark grey, bright yellow, or deep purple to rusty red.
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Therefore, it was not clear whether the finding of magnetite formed in a single carboxylic acid can be extended to the real crude oil with complex components. In the present study, three representative crude fractions were employed to corrode carbon steel and low-chromium steel specimens at high temperatures.
Single-layer oleic acid-coated magnetite (Fe 3 O 4 @OA) nanoparticles show potential for magnetically demulsifying diluted crude oil-in-water nanoemulsions from oilfields. The demulsification efficiency was influenced by the dosage and wettability of the nanoparticles, the pH and the demulsification operation process.
The magnetic properties revealed that the nanoparticles having magnetite structure possess super paramagnetic behavior and exhibit relatively high saturation magnetization. The experimental results of oil spills concluded that the nanoparticles of magnetite structure were effective for oil spill removal where 95wt.% of crude oil was removed ...
To shed light on the probable role of the iron compds. in the formation of such deposits, magnetite (Fe3O4), one of the intrinsic components of the iron oxide multilayer scale of any carbon steel surface, was contacted with crude oil at 170 °C, a temp. similar to that of the bottom well, and subsequently aged at room temp.
In this work, an efficient way of converting the water hyacinth to biocrude oil using magnetite nanoparticles (MNPs) as potential catalysts was demonstrated for the first time. MNPs were synthesised by co-precipitation and used in the hydrothermal liquefaction (HTL) of water hyacinth at different reaction conditions (temperature, reaction time, MNPs to biomass ratio and …
IFT between crude oil and nanofluids (NF250, NF500, NF1000, NF1500 and NF2000) with different concentrations of Magnetite@SiO 2 @Xanthan NCs was measured. Scheme 2 Schematic presentation of high-pressure (HP) and high-temperature (HT) IFT measuring test: a pendant drop IFT400 apparatus, and b crude oil droplet [ 20 ]
SSR Mining Inc. (NASDAQ: SSRM) (TSX: SSRM) (ASX: SSR) (''SSR Mining'' or the "Company") is pleased to announce positive results from an additional 27 diamond drill holes at Copper Hill for the period from June to September 2021. Copper Hill is located in the Black Sea region of northeast Turkey (Figure 1), and these results follow the initial 8 drill holes reported …
This work aims to apply modified asphaltene for capping of magnetite to form dispersed hydrophobic magnetic nanomaterials for environmental applications. In this respect, asphaltene was separated from heavy crude oil and functionalized by sulfonation in order to apply as a capping agent for magnetic materials to co
The main objective of this work is to synthesize and evaluate magnetite (Fe 3 O 4) nanoparticle-based ferrofluids for reducing the viscosity of an extra heavy crude oil. The carrier fluid of the nanoparticles was synthesized using an engine lubricant recycled from the automotive industry and hexadecyltrimethylammonium bromide as a surfactant.
Iron ore is a mineral substance which, when heated in the presence of a reductant, will yield metallic iron (Fe). It almost always consists of iron oxides, the primary forms of which are magnetite (Fe 3 O 4) and hematite (Fe 2 O 3 ). Iron ore is the source of primary iron for the world's iron and steel industries.
PROBLEM TO BE SOLVED: To provide a multifunctional and low-cost higher alkali metal-transition metal oxide.SOLUTION: The inside of a stainless steel- or iron-made reaction cell 1 is filled with an oxygen-free atmosphere, an alkali metal-containing compound such as NaOH or KTiOis placed therein as a reactant, fine particles of the reactant are scattered therein by …
Magnetic demulsification of diluted crude oil-in-water nanoemulsions using oleic acid-coated magnetite nanoparticles Colloids Surf A Physicochem Eng Asp, 466 ( 2015 ), pp. 197 - 202 Article Download PDF View Record in Scopus Google Scholar
Iron ores, usually rich in iron oxide, are rocks and minerals from which metallic iron can be extracted. Iron ore mining methods vary by the type of ore being mined. There are four main types of iron ore deposits worked currently: magnetite, hematite, pisolitic ironstone, and titanomagnetite deposits. Pure iron metal is silvery white in colour ...
According to the present invention, the dry crude ore composed of both coarse grained and fine grained material is first comminuted to between about three …
The magnetic properties and antimicrobial activities of the prepared magnetite nanoparticles confirmed the application of nanoparticles for environmental application as crude oil collector for oil ...
In the present study, a new magnetic powder based on magnetite can be used as a petroleum crude oil collector. Amidoximes based on rosin as a natural product can be prepared from a reaction between hydroxylamine and rosin/acrylonitrile adducts. The produced rosin amidoximes were used as capping agents for magnetite nanoparticles to prepare hydrophobic …
In this study, a magnetic demulsifier, magnetite-reduced graphene oxide (M-rGO) nanocomposites were proposed as a recyclable demulsifier to break up the surfactant stabilized crude oil-in-water (O/W) emulsion.
The global nanomaterials market size is expected to reach USD 23.1 billion by 2028, according to a new report by Grand View Research, Inc. The market is expected to expand at a CAGR of 14.1% from 2021 to 2028. Factors such as increasing applications of nanomaterials in electronics and biomedical domains, financial support from the government, ongoing R&D, …
Crude ores in which most of the recoverable iron is magnetite (or, in rare cases, maghemite) are normally concentrated by magnetic separation. The crude ore may contain 30 to 35 percent total iron by assay, but theoretically only about 75 percent of this is recoverable magnetite. The remaining iron is discarded with the gangue.
Well-defined, magnetic shell cross-linked knedel-like nanoparticles (MSCKs) with hydrodynamic diameters ca. 70 nm were constructed through the co-assembly of amphiphilic block copolymers of PAA20-b-PS280 and oleic acid-stabilized magnetic iron oxide nanoparticles using tetrahydrofuran, N,N-dimethylf …
Oil-in-water (O/W) emulsion has been a major concern for the petroleum industry. A cost-effective magnetite-reduced graphene oxide (MRGO) nanocomposite was synthesized to study the demulsification process of emulsion using said nanocomposite under solar illumination. Characterization data show that the magnetite was successfully deposited on reduced …
Toronto, Ontario--(Newsfile Corp. - December 14, 2021) - Canuc Resources Corporation (TSXV: CDA) (OTCQB: CNUCF) ("Canuc" or the "Company") is pleased to provide a December 2021 update on the exploration program currently in progress at the Company's San Javier Ag-Au Project in Sonora State, Mexico.In 2020 Canuc carried out a very successful …
Magnetite outperformed a soluble Fe 2+ catalyst at removing between 80 and 90% of crude oil residues from soil in one week, compared to just 10-15% for the regular iron catalyst(13). The use of magnetite fertilizer as a soil contamination reliever is particularly welcomed owing to magnetite's relatively low toxic nature.
Optimization and characterization of magnetite–reduced graphene oxide nanocomposites for demulsification of crude oil in water emulsion Mun Mun Wai, a Cheng Seong Khe, * bc Xin Hui Yau, bc Wei Wen Liu, d Rajalingam Sokkalingam, b Khairulazhar Jumbri b and Nilar Lwin e
Vanadium – a transition metal – is found in the ferrous-ferric mineral, magnetite. Vanadium has many industrial applications, such as in the production of high-strength low-alloy steels, and its increasing global industrial consumption requires new primary sources. Bioleaching is a biotechnological process for microbially catalyzed dissolution of minerals and wastes for metal …
Warner settled on using magnetite dust of about two to six microns in diameter, and tested it in over 100 oils. Crude oils turned out to have enough inherent viscosity – …