Magnetic sorbents based on hypercrosslinked copolymers of styrene and divinylbenzene with immobilized iron oxides

2021 ◽  
Vol 160 ◽  
pp. 104823
Author(s):  
Alexander V. Pastukhov
Keyword(s):  
Iron Oxides ◽  
Magnetic Sorbents

scholarly journals Composite Magnetic Sorbents Based on Iron Oxides in Different Polymer Matrices: Comparison and Application for Removal of Strontium

Biomimetics ◽  
2020 ◽  
Vol 5 (2) ◽  
pp. 22 ◽  
Author(s):  
Andrei Egorin ◽  
Eduard Tokar ◽  
Anna Matskevich ◽  
Nikita Ivanov ◽  
Ivan Tkachenko ◽  
...  
Keyword(s):  
Composite Material ◽  
Iron Oxides ◽  
Cation Exchange Resin ◽  
Oxide Phase ◽  
Polymer Matrices ◽  
Magnetic Characteristics ◽  
X Ray Diffraction ◽  
Magnetic Sorbents ◽  
Host Materials ◽  
Oxide Phases

Introduction of magnetic nanoparticles into composite sorbents based on polymer matrices has received great attention due to the possibility of using cheap iron oxides and removing spent sorbents by means of magnetic separation. In the present paper, we discuss the problem of creating magnetic sorbents using two types of matrices as host materials: synthetic cation exchange resin and natural aminopolysaccharide chitosan. The possibilities of applying matrices for the in situ formation of oxide phases of a specified composition with the required content of an inorganic component in a composite material were estimated. The composition of the oxide phase formed in the composite material was studied, and particle sizes were evaluated by the method of X-ray diffraction analysis. Magnetic characteristics were investigated. Sorption characteristics with respect to strontium for the composites containing iron oxides were determined.

Ferri-Magnetic Sorbents of Heavy Metals and Radionuclides on Base of Humates, Isolated from Oxidized Coals

2014 ◽  
Vol 1079-1080 ◽  
pp. 88-94
Author(s):  
Zh.K. Kairbekov ◽  
V.S. Yemelyanova ◽  
T.V. Shakiyeva ◽  
B.T. Dossumova ◽  
U.N. Dzhatkambayeva ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Magnetic Separation ◽  
Iron Oxides ◽  
Humic Acids ◽  
Active Components ◽  
Magnetic Composites ◽  
Magnetic Sorbents ◽  
Natural Objects ◽  
Optimal Mode ◽  
Heavy Metals Ions

The results of synthesis and researches of hybrid gumic-magnetic composites are presented in the article. The possibility of regulation of quantitative speciation of composites (containing of Fe) is established at the variation of proportions Fe (II), Fe (III)/HA and the way of reagents injection in a reaction mixture. The possibility of designing of sorbents on the basis of humic acids and chemically connected particles of iron oxides as magnetic-active components for fixation and extraction of heavy metals ions and radionuclides from natural objects by means of magnetic separation is shown. The adsorption degree stands at 95% in an optimal mode.

scholarly journals Sol-gel synthesis of magnetic sorbents based on porous iron oxides for the removal of U(VI) from aqueous solution

2017 ◽  
Author(s):  
E. K. Papynov ◽  
A. S. Portnyagin ◽  
A. I. Cherednichenko ◽  
I. A. Tkachenko ◽  
E. B. Modin ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Iron Oxides ◽  
Sol Gel ◽  
Porous Iron ◽  
Magnetic Sorbents ◽  
Sol Gel Synthesis

Selective oxidation of aniline into azoxybenzene catalyzed by Nb-peroxo@iron oxides at room temperature

2020 ◽  
Vol 44 (21) ◽  
pp. 8710-8717
Author(s):  
André L. D. Lima ◽  
Humberto V. Fajardo ◽  
André E. Nogueira ◽  
Márcio C. Pereira ◽  
Luiz C. A. Oliveira ◽  
...  
Keyword(s):  
Iron Oxides ◽  
Selective Oxidation ◽  
Room Temperature ◽  
High Selectivity

Nb-peroxo@iron oxides show high selectivity and activity in aniline conversion to azoxybenzene.

Pilot Plant Data for Synthetic Iron Oxides

1952 ◽  
Vol 44 (3) ◽  
pp. 449-449
Author(s):  
C DeWitt ◽  
M Livingood ◽  
K Miller
Keyword(s):  
Iron Oxides ◽  
Pilot Plant ◽  
Plant Data

Effects of carbon and manganese impurities on cerium incorporation in iron oxides scales

1996 ◽  
Vol 93 ◽  
pp. 1509-1524 ◽  
Author(s):  
C Courty ◽  
H Buscail ◽  
JP Larpin
Keyword(s):  
Iron Oxides

Changes of Magnetic Characteristics of iron Oxides and Hydroxides in Aqueous Medium

2017 ◽  
Vol 39 (1) ◽  
pp. 46-52
Author(s):  
T. SAVCHENKO ◽  
◽  
A. GRECHANOVSKY ◽  
A. BRIK ◽  
N. DUDCHENKO
Keyword(s):  
Aqueous Medium ◽  
Iron Oxides ◽  
Magnetic Characteristics

IRON OXIDES FROM ELECTROFILTER ASH FOR WATER TREATMENT (ARSENIC REMOVAL)

2009 ◽  
Vol 8 (4) ◽  
pp. 895-900 ◽  
Author(s):  
Ionel Balcu ◽  
Adina Segneanu ◽  
Marius Mirica ◽  
Mirela Iorga ◽  
Catalin Badea ◽  
...  
Keyword(s):  
Water Treatment ◽  
Iron Oxides ◽  
Arsenic Removal
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