Publication detail

Reactivity of meta-talc in sodium hydroxide medium

BEDNÁREK, J. PTÁČEK, P. ŠOUKAL, F. HAVLICA, J. NOVOTNÝ, R. MÁSILKO, J. ŠILER, P.

Original Title

Reactivity of meta-talc in sodium hydroxide medium

English Title

Reactivity of meta-talc in sodium hydroxide medium

Type

conference paper

Language

en

Original Abstract

This work deals with the reactivity of XRD amorphous delaminated and dehydroxylated talc phase (meta-talc), in alkali medium. Talc ore Luzenac H70 was treated in a stirred ball mill (attritor) for 30; 60 and 90 min with subsequent thermal treatment at 700°C; 750°C and 800°C. Reactivity of mechanochemically and thermally treated talc ore in NaOH solution was studied using isothermal calorimetry. An influence of material crystallinity and amount of water coordinated in material structure after milling on its reactivity in alkali medium was studied.

English abstract

This work deals with the reactivity of XRD amorphous delaminated and dehydroxylated talc phase (meta-talc), in alkali medium. Talc ore Luzenac H70 was treated in a stirred ball mill (attritor) for 30; 60 and 90 min with subsequent thermal treatment at 700°C; 750°C and 800°C. Reactivity of mechanochemically and thermally treated talc ore in NaOH solution was studied using isothermal calorimetry. An influence of material crystallinity and amount of water coordinated in material structure after milling on its reactivity in alkali medium was studied.

Keywords

meta-talc, sodium hydroxide, isothermal calorimetry, mechanochemical activation

Released

12.07.2018

Publisher

IOP Publishing

Location

Češkovice

Pages from

1

Pages to

6

Pages count

6

URL

Full text in the Digital Library

BibTex


@inproceedings{BUT148918,
  author="Jan {Bednárek} and Petr {Ptáček} and František {Šoukal} and Jaromír {Havlica} and Radoslav {Novotný} and Jiří {Másilko} and Pavel {Šiler}",
  title="Reactivity of meta-talc in sodium hydroxide medium",
  annote="This work deals with the reactivity of XRD amorphous delaminated and dehydroxylated talc phase (meta-talc), in alkali medium. Talc ore Luzenac H70 was treated in a stirred ball mill (attritor) for 30; 60 and 90 min with subsequent thermal treatment at 700°C; 750°C and 800°C. Reactivity of mechanochemically and thermally treated talc ore in NaOH solution was studied using isothermal calorimetry. An influence of material crystallinity and amount of water coordinated in material structure after milling on its reactivity in alkali medium was studied.",
  address="IOP Publishing",
  booktitle="International Conference Building Materials , Products and Technologies",
  chapter="148918",
  doi="10.1088/1757-899X/379/1/012003",
  howpublished="online",
  institution="IOP Publishing",
  year="2018",
  month="july",
  pages="1--6",
  publisher="IOP Publishing",
  type="conference paper"
}