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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Yakubailik E. K., Kilin V. I., Chizhik M. V., Ganzhenko I. M.
Заглавие : Magnetic characteristics of primary concentrates supplied as a feedstock to Abagur enrichment-agglomeration plant
Место публикации : J. Min. Sci.: MAIK Nauka-Interperiodica / Springer, 2013. - Vol. 49, № 1. - P.153-159. - ISSN 1062-7391, DOI 10.1134/S1062739149010188
Примечания : Cited References: 7
Ключевые слова (''Своб.индексиров.''): primary concentrate--magnetite ore--lightly-oxidized ore--magnetic properties
Аннотация: The article presents basic magnetic characteristics of nine primary concentrates produced from Siberian magnetite ore and a lightly oxidized iron ore and supplied as a feedstock to Abagur enrichment-agglomeration plant. The best magnetic properties belong to the primary concentrate produced from the magnetite ore mined at Abaza, Irba and Kaz deposits; the weakest properties characterize the lightly oxidized ore from Izykh-Gol and Krasnokamensk; the magnetic characteristics are proportional to magnetite content in a primary test specimen. Considering this, the integrated processing of lightly oxidized and magnetite ore is recommended to lower magnetite loss in tailings of Abagur plant.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Якубайлик, Эдуард Константинович, Килин В. И., Килин С. В., Ганженко И. М.
Заглавие : Магнитные свойства и процессы мокрой магнитной сепарации первичных концентратов железосодержащих руд Сибири
Место публикации : Горный информационно-аналитический бюллетень. - 2013. - № 2. - С. 114-124. - ISSN 0236-1493
Ключевые слова (''Своб.индексиров.''): magnetic characteristics--primary concentrate--magnetite--oxidic ores--wet separation--separation parameters obtained--магнитные параметры--первичный концентрат--магнетитокисленные руды--мокрая сепарация--показатели обогащения
Аннотация: Изложены результаты изучения основных магнитных характеристик и показателей лабораторной мокрой сепарации девяти первичных концентратов магнетитовых и слабоокисленных руд сибирских месторождений — сырья Абагурской обогатительной фабрики. Рекомендовано слабоокисленные руды обогащать в обшей шихте с магнетитовыми для уменьшения потерь железа с хвостами.The results of investigation of the main magnetic properties and the separation parameters obtained laboratory wet separation nine primary concentrate magnetite and sub-acidulute siberian ores deposits - raw materials of Abagursk preparation plant are present. Recommend sub-acidulate ores to concentrate at common charge with the magnetite ores for decreasing the losses of the iron with tailing.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Kilin V. I., Yakubailik E. K., Kostenenko L. P., Ganzhenko I. M.
Заглавие : Dressability of abagas hematite-magnetite ores
Место публикации : J. Min. Sci. - 2012. - Vol. 48, Is. 2. - P.363-368. - ISSN 1062-7391, DOI 10.1134/S1062739148020189
Примечания : Cited References: 3
Ключевые слова (''Своб.индексиров.''): magnetite--hematite--ilvaite--dry--wet--high-gradient magnetic separation--jigging
Аннотация: A number of magnetic separation processes are used to study preparability of two main hematite-magnetite and magnetite-muscovite ore types extacted it the Abagas iron ore deposit. The dry magnetic separation results were judged as acceptable for the rough processing stage, while the products of the wet magnetic separation were the high-grade iron ore concentrates. The two-stage beneficiation tests on complex hematite-magnetite ores demonstrated much higher cumulative iron recovery from the test ore.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Kirillov V. L., Balaev D. A., Semenov S. V., Shaikhutdinov K. A., Martyanov O. N.
Заглавие : Size control in the formation of magnetite nanoparticles in the presence of citrate ions
Коллективы : Siberian Branch of the Russian Academy of Sciences
Место публикации : Mater. Chem. Phys.: Elsevier Science, 2014. - Vol. 145, Is. 1-2. - P.75-81. - ISSN 0254-0584, DOI 10.1016/j.matchemphys.2014.01.036. - ISSN 1879-3312
Примечания : Cited References: 46. - This work was supported by the Interdisciplinary Integration Project no. 45 of the Siberian Branch of the Russian Academy of Sciences for 2012-2014.
Предметные рубрики: OLEIC-ACID
CATALYST
HYPERTHERMIA
PARTICLES
OXIDATION
REMOVAL
CO
Ключевые слова (''Своб.индексиров.''): magnetic materials--magnetic properties--precipitation--electron paramagnetic resonance
Аннотация: A one-pot synthesis method for the controllable growth of magnetite nanoparticles directly during the process of co-precipitation using citrate ions was developed. The effects of the concentration of citrate ions and the solution pH on the characteristics of magnetite particles with sizes in the range of 4-10 nm synthesized by the method of co-precipitation were studied. The results showed that the specified concentration of citrate ions allowed the preparation of magnetite particles with a definite size that exhibited superparamagnetic behaviour in a particular temperature range. As the concentration ratio of citrate to iron ions was increased from 0 to 0.11, the average size of the prepared magnetite particles decreased from 10.5 to 4.4 nm. As a result, the superparamagnetic blocking temperature decreased from 300 to 20 K, the saturation magnetisation decreased from 50 to 20 emu g(-1), and the average magnetic moment decreased from 8000 mu(B) to 340 mu(B) (at T = 300 K). The obtained experimental data proved that the size effects of the magnetite nanoparticles can be attributed to the capping of the magnetite surface by adsorbed citrate ions. Thus, the suggested approach allows magnetite nanoparticles to be prepared with an optimum particle size around superparamagnetic threshold that prevents their irreversible agglomeration and simultaneously allows them to be removed from a solution at an acceptable rate. (C) 2014 Elsevier B.V. All rights reserved.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bykova L. E., Myagkov V. G., Tambasov I. A., Bayukov O. A., Zhigalov V. S., Mikhlin Y. L., Nemtsev I. V., Bondarenko G. N.
Заглавие : Magnetic and structural properties of nanocomposite ZnO-Fe3O4 films prepared by solid-state synthesis
Коллективы : Euro-Asian Symposium "Trends in MAGnetism": Nanomagnetism
Место публикации : Solid State Phenom.: Selected, peer reviewed papers/ ed.: S. G. Ovchinnikov, A. Samardak: Trans Tech Publications, 2014. - Vol. 215: Trends in Magnetism: Nanomagnetism (EASTMAG-2013). - P.158-162. - ISSN 978-303835054-5, DOI 10.4028/www.scientific.net/SSP.215.158. - ISSN 1662-9779
Примечания : Cited References: 18
Ключевые слова (''Своб.индексиров.''): ferromagnetic nanocomposite films--magnetite--solid-state synthesis--zinc oxide
Аннотация: A simple method for obtaining ZnO-FeO3O4 nanocomposites using solid-state reaction Zn + 3Fe2O3 ZnO + 2FeO3O4 is suggested. An analysis of the characteristics and properties of ZnOFeO3O4 nanocomposites was carried out by a combination of structural and physical methods (X-ray diffraction, scanning electron microscopy, photoelectron spectroscopy, Mossbauer measurements, X-ray fluorescent analysis, and magnetic measurements). The magnetization of the hybrid ZnOFeO3O4 films is equal to 440 emu/cm3. The resulting FeO3O4 nanoparticles are surrounded by a ZnO shell and have sizes ranging between 20 and 40 nm. © (2014) Trans Tech Publications, Switzerland.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ganzhenko I. M., Yakubaylik E. K.
Заглавие : Magnetite losses decrease at the Abagurskaya concentrating plant
Место публикации : Obogashch. Rud. - 2015. - Is. 1. - P.22-25. - ISSN 0202-3776
Примечания : Cited References: 7
Ключевые слова (''Своб.индексиров.''): magnetite--magnetic separator--neodymium-iron-boron--magnetic-field intensity--saturation magnetization, residual and in different fields--coercive force--specific magnetic susceptibility
Аннотация: Presently, owing to the wet magnetic concentration technology and equipment improvement, losses of magnetite iron in tailings were reduced close to 1 % at all iron ore processing facilities. This raises the question of magnetite losses limit value that may be reached on the basis of the available engineering and technical provision. The results of the investigations, performed with a view to estimate achievable level of magnetite losses at the Abagurskaya concentrating plant, are presented. As a result of the composition and magnetic properties investigations, carried out on samples of concentrate and classifiers overflow products, as well as final tailings in all processing operations, it was established, that losses of magnetite iron in tailings could be reduced to 0.5 %. With that, decrease by 0.15 % may be achieved by means of replacement of all barium-ferrite systems with the ones made of neodymium-iron-boron alloy, and by 0.30 %-through application of separators of the type PBR-P-90/250A in magnetite heavy-medium regeneration, as well as application of neodymium-iron-boron alloy magnets.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ding Y., Haskel D., Ovchinnikov S. G., Tseng Y. C., Orlov Y. S., Lang J. C., Mao H. K.
Заглавие : Novel pressure-induced magnetic transition in magnetite (Fe(3)O(4))
Разночтения заглавия :авие SCOPUS: Novel pressure-induced magnetic transition in magnetite (Fe3O4)
Место публикации : Phys. Rev. Lett.: AMER PHYSICAL SOC, 2008. - Vol. 100, Is. 4. - Ст.45508. - ISSN 0031-9007, DOI 10.1103/PhysRevLett.100.045508
Примечания : Cited References: 39
Предметные рубрики: MULTIPLE-SCATTERING THEORY
X-RAY DICHROISM
LOWER MANTLE
VERWEY TRANSITION
K-EDGE
CIRCULAR-DICHROISM
SPIN TRANSITION
BAND-STRUCTURE
IRON
FE
Ключевые слова (''Своб.индексиров.''): emission spectroscopy--magnetoelectronics--pressure effects--synchrotron radiation--diamond anvil cell--magnetic transition--x-ray magnetic circular dichroism--magnetite
Аннотация: Fe K-edge x-ray magnetic circular dichroism of magnetite (Fe(3)O(4)) powders was measured with synchrotron radiation under variable pressure and temperature conditions in diamond anvil cell. The magnetic dichroism was observed to decrease discontinuously by similar to 50% between 12 and 16 GPa, independent of temperature. The magnetic transition is attributed to a high-spin to intermediate-spin transition of Fe(2+) ions in the octahedral sites and could account for previously observed structural and electrical anomalies in magnetite at this pressure range. The interpretation of x-ray magnetic circular dichroism data is supported by x-ray emission spectroscopy and theoretical cluster calculations.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Petrakovskaya E. A., Isakova V. G., Bayukov O. A., Velikanov D. A.
Заглавие : Superparamagnetism of magnetite particles in C-60 fullerite powder
Разночтения заглавия :авие SCOPUS: Superparamagnetism of magnetite particles in C60 fullerite powder
Место публикации : Tech. Phys.: AMER INST PHYSICS, 2005. - Vol. 50, Is. 6. - P790-793. - ISSN 1063-7842, DOI 10.1134/1.1947359
Примечания : Cited References: 9
Предметные рубрики: RESONANCE
Аннотация: A new magnetic material, C-60 fullerite powder doped by magnetite (Fe3O4) nanoparticles, is obtained by heating a mixture of fullerite and iron(III) acetylacetonate. It is shown that the material offers superparamagnetic properties. Surface bonding between the nanoparticles and the fullerite is established. (c) 2005 Pleiades Publishing, Inc.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : BABKIN E. V., CHERKUNOVA N. G., OVCHINNIKOV S. G.
Заглавие : INVESTIGATION OF QUANTUM SIZE EFFECT IN MAGNETITE FILMS
Место публикации : Solid State Commun.: PERGAMON-ELSEVIER SCIENCE LTD, 1984. - Vol. 52, Is. 8. - P735-738. - ISSN 0038-1098, DOI 10.1016/0038-1098(84)90400-9
Примечания : Cited References: 8
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Babkin E. V., Kiselev N. I., Pyn'ko V. G.
Заглавие : Characteristics of magnetite magnetoresistance
Место публикации : Fiz. Tverd. Tela: MEZHDUNARODNAYA KNIGA, 1995. - Vol. 37, Is. 11. - P.3547-3549. - ISSN 0367-3294
Примечания : Cited References: 5
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