Results 251 to 260 of about 101,690 (303)

Recovery Nickel-Ferrous Compound from Nickel-Bearing Secondary Resources

2020
The stainless steel pickling sludge contained valuable metals such as Fe, Cr, and Ni and was a second Ni-bearing resource. It was essential to explore an economical technology for recovery metals from the low grade pickling sludge. The method of carbon thermal reduction–magnetic separation process was proposed to not only recover Fe, Cr, and Ni from ...
Qiuju Li, Songyan Liu, Caixiang Yu, Fanxi Yang, Ziyang Wang   +4 more
openaire   +1 more source

Mössbauer Study of Magnetic Properties in Ferrous Compounds

Journal of the Physical Society of Japan, 1964
Using the Mossbauer effect of Fe 57 , ferrous compounds have been investigated systematically in order to elucidate their magnetic properties from an atomic point of view. Parameters of isomer shifts, quadrupole interactions and internal magnetic fields at the iron nuclei at various temperatures are listed in Table I.
Kazuo Ôno, Atsuko Ito
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A Novel Multistep Mechanism for Oxygen Binding to Ferrous Hemoproteins:  Rapid Kinetic Analysis of Ferrous-Dioxy Myeloperoxidase (Compound III) Formation

Biochemistry, 2004
Myeloperoxidase (MPO), a hemoprotein that uses H(2)O(2) as the electron acceptor in the catalysis of oxidative reactions, is implicated as a participant in inflammatory injury and cardiovascular diseases. Mechanisms for turning off this enzyme once released, preventing unwanted tissue injury, are poorly understood.
Husam M, Abu-Soud, Frank M, Raushel, Stanley L, Hazen   +2 more
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Removal of cyanide compounds from coking wastewater by ferrous sulfate: Improvement of biodegradability

Journal of Hazardous Materials, 2016
The effect of ferrous sulfate (FeSO4) treatment on the removal of cyanide compounds and the improvement of biodegradability of coking wastewater were investigated by varying Fe:TCN molar ratios. Results suggested that the reaction between FeSO4 and coking wastewater was a two-step process.
Xubiao, Yu, Ronghua, Xu, Chaohai, Wei, Haizhen, Wu   +3 more
openaire   +2 more sources

On the quadrupole splitting in ferrous compounds

Chemical Physics Letters, 1969
It is shown that the major contribution to the low temperature “saturation” value of the quadrupole splitting in ferrous compounds is independent (with a few well-defined exceptions) on the site symmetry of the Fe2+ ion. This explains the experimental fact that the measured values of this quantity in most compounds fall within ≈ 20% of each other.
openaire   +1 more source

Corrosion of Ferrous Alloys by Organic Compounds in Simulated Bio-Oils

CORROSION 2019, 2019
Absrract Bio-oils derived from biomass contain organic species and acids that can be corrosive to steel-based structural materials used for pipelines and storage tanks. It is, therefore, important to assess corrosivity of organic constituents in bio-oils and identify ferrous alloys with sufficient corrosion resistance.
Jiheon Jun, Matthew G Frith, Raynella M Connatser, James R Keiser, Michael P Brady, Samuel Lewis   +5 more
openaire   +1 more source

Electric-Field Gradient Tensor in Ferrous Compounds

Physical Review, 1964
The electric-field gradient tensor at the iron nucleus in ferrous (${\mathrm{Fe}}^{2+}$) compounds is investigated. One sees that under the combined action of axial and rhombic crystalline fields and the spin-orbit interaction, the ferrous-ion $(^{5}D,3{d}^{6}){d}_{\ensuremath{\epsilon}}$ states produce a large, temperature-dependent, contribution to ...
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XPS study of surface-active organic compounds on fine ferrous powder

Surface and Interface Analysis, 2000
Controlled adsorption of organic probe molecules in liquid solutions provides information on the interaction between powder and surface-active additives used in metal injection moulding (MIM). The adsorption of such compounds onto stainless-steel powder and carbonyl iron powder is evaluated by means of XPS.
Elisabeth Johansson, Lars Nyborg
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Wet oxidation of inhibitory compounds of distillery spent wash over ferrous sulfate catalyst

Chemical Engineering Communications, 2020
In a distillery, controlled wet oxidation of biomethanated spent wash improves biogas recovery and subsequent biodegradation of wash water.
Ganesh M. Bhoite, Prakash D. Vaidya
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Redox reactions between organic halo-compounds and ferrous cations in isopropanol

Transition Metal Chemistry, 1978
Halo-compounds of which the half-wave reduction potential is equal to or less negative than that of carbon tetrachloride, are reduced by tetrachloroferrate(II) anions. The bimolecular rate constants measured at 250 in isopropanol are 2 × 10−5 M−1 s−1 and 1 × 10−4 M−1 s−1 respectively for CCl4 and CCl3CO2Me.
openaire   +1 more source