Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Fluidized-bed chlorination rates of Kenya rutile ore
KTH, Skolan för industriell teknik och management (ITM), Materialvetenskap, Tillämpad processmetallurgi.
Visa övriga samt affilieringar
2014 (Engelska)Ingår i: Xiyou jinshu cailiao yu gongcheng, ISSN 1002-185X, Vol. 43, nr 6, s. 1377-1380Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

The thermodynamics and kinetics of natural rutile carbochlorination have been investigated in a fluidized-bed. Thermodynamic analysis of this system reveals that when C is excess in the solid phase, TiCl4 and CO are the only two stable products in the chemical equilibrium compositions system, and the increase of the ratio of C to TiO2 has little effect on the product composition. At high temperature, the reaction with CO as the product is the dominant reaction. This paper proposed a reaction rate model, and got a rutile chlorination rate formula, which is more consistent with experimental data. For the TiO2-C-Cl2 system, the reaction rate is dependent on both size and density of natural rutile. From 900 to 1000°C, the apparent activation energy is 10.569 kJ/mol. In this temperature range, mass diffusion is the main reaction controlling step. The expression of the chlorine reaction rate in the C-Cl2 system was obtained, and it depends on the degree of reaction, Cl2 concentration and the size of coke.

Ort, förlag, år, upplaga, sidor
2014. Vol. 43, nr 6, s. 1377-1380
Nyckelord [en]
Carbochlorination, Fluidized bed, Gas-solid reaction, Natural rutile, Particle
Nationell ämneskategori
Metallurgi och metalliska material
Identifikatorer
URN: urn:nbn:se:kth:diva-148581ISI: 000338483700021Scopus ID: 2-s2.0-84904195841OAI: oai:DiVA.org:kth-148581DiVA, id: diva2:736723
Anmärkning

QC 20140808

Tillgänglig från: 2014-08-08 Skapad: 2014-08-08 Senast uppdaterad: 2017-12-05Bibliografiskt granskad

Open Access i DiVA

Fulltext saknas i DiVA

Scopus

Sök vidare i DiVA

Av författaren/redaktören
Ni, Peiyuan
Av organisationen
Tillämpad processmetallurgi
I samma tidskrift
Xiyou jinshu cailiao yu gongcheng
Metallurgi och metalliska material

Sök vidare utanför DiVA

GoogleGoogle Scholar

urn-nbn

Altmetricpoäng

urn-nbn
Totalt: 172 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf