title: The investigation of natural mineral of mordenite and chemical modification in the Ca(OH)2 environment
metadata.name: dc.contributor.author
metadata.value: Mamedova, Gunel A.
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2017-03-20T15:33:42Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2017-03-20T15:33:42Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2016-12
metadata.lang: -
metadata.name: dc.identifier.other
metadata.value: 10.21638/11701/spbu04.2016.408
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/6109
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: Phase transformation of natural zeolite under hydrothermal treatment is examined in this paper.
  Based on the data of IR-spectroscopy, X-ray diffraction, elements analysis methods and electron
  microscope studies, we have shown that the hydrothermal treatment of the natural zeolite is
  substantially converted into other important minerals of the zeolite group. One of the most important
  objectives of the study of zeolite crystallization processes is the creation of materials with
  predetermined structure and composition. Crystallization of zeolites with the specified composition
  and structure directly depends on the nature and state of the starting materials. In the construction of a hypothetical zeolite framework with a view to their subsequent synthesis, you
  must take into account the size of the cations hydration shell, the amount and the possibility of
  their location in skeletal cavities. Flow conversion processes according to the processing conditions
  (temperature, time, concentration) and the mineralizer were traced. Chemical modification
  of natural mordenite is accompanied by the formation of not only individual zeolites but also
  aluminosilicate minerals, and processing in the presence of the mineralizer is not accompanied
  by the formation of intermediate phases. The regions of stability of minerals under differing hydrothermal
  processing regimes was determined, allowing the synthesization of minerals with the
  desired characteristics. Refs 11. Figs 4. Tables 3.
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: mordenite
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: zeolite
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: a natural mineral
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: hydrothermal processing
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: mineralizer
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: the directional synthesis
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: the phase transformation
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: The investigation of natural mineral of mordenite and chemical modification in the Ca(OH)2 environment
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: 08-Mamedova.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/6109/1/08-Mamedova.pdf
resources.format: Adobe PDF
resources.size: 1,5 MB