title: Obtaining of magnetite for the magnetic fluids using iron-chromium galvanic sludge
metadata.name: dc.contributor.author
metadata.value: Makarov, Vladimir M.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Kalaeva, Sakhiba Z.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Volina, Olga V.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Andriyanova, Alyona V.
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2017-03-20T15:46:32Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2017-03-20T15:46:32Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2016-12
metadata.lang: -
metadata.name: dc.identifier.other
metadata.value: 10.21638/11701/spbu04.2016.412
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/6113
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: Magnetic fluid is a promising material for wide application, which is constrained by the extremely
  high cost, as the magnetite — its basis is synthesized from the reactive raw materials. Search of
  cheaper sources for magnetite will extend its use for cleaning water and soil from oil petroleum
  product, separation of materials by density, reduction of vibratory activity of machines and a
  number of other areas. Studies have shown that the basis for the production of magnetite can be
  galvanostat resulting from electrocoagulation cleaning of wash wastewater after common operations
  of chrome plating. The simultaneous presence of ions of chromium and iron provides the
  flow of redox processes at temperature influence leading to the emergency of ions of three — and
  bivalent iron, necessary for the synthesis of magnetite (Fe2O3 · FeO). The results of X-ray and
  magnetometry studies of galvanic sludge decrepitation up to the 1000°C is shown in this article.
  It is shown that decrepitation of galvanic at the temperature 400°C and more leads to rise of
  iron containing in galvanic sludge and as a result grain formation of magnetic oxide of iron. The
  process is accompanied by the growth of magnetirability saturation of samples. The received
  material can be used for synthesis of magnetic fluid. Refs 6. Figs 4. Tables 1.
metadata.lang: en_GB
metadata.name: dc.language.iso
metadata.value: ru
metadata.lang: en_GB
metadata.name: dc.publisher
metadata.value: St Petersburg State University
metadata.lang: en_GB
metadata.name: dc.relation.ispartofseries
metadata.value: Vestnik of St Petersburg University. Series 4. Physics. Chemistry;Vol. 3 (61); Issue 4
metadata.lang: -
metadata.name: dc.subject
metadata.value: magnetite
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: the temperature of annealing
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: powder XRD
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: magnetization
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: Obtaining of magnetite for the magnetic fluids using iron-chromium galvanic sludge
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: 12-Makarov.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/6113/1/12-Makarov.pdf
resources.format: Adobe PDF
resources.size: 402,35 kB