umu.sePublications
Change search
ReferencesLink to record
Permanent link

Direct link
Borate autocausticizing equilibria in recovery boiler smelt
Umeå University, Faculty of Science and Technology, Department of Applied Physics and Electronics, Energy Technology and Thermal Process Chemistry.
Show others and affiliations
2005 (English)In: Nordic Pulp & Paper Research Journal, ISSN 0283-2631, E-ISSN 2000-0669, Vol. 20, no 2, 232-236 p.Article in journal (Refereed) PublishedText
Abstract [en]

The effect of the potassium and boron concentration in an alkali carbonate/borate mixture and the effect of CO, concentration in the gas were studied with thermogravimetry and thermal analysis up to 900 degrees C. Results show that the auto-causticizing reaction is readily reversible with 1 % CO2 or higher in the gas if the mixtures contain only sodium compounds. Both a higher CO, concentration and a higher potassium concentration lead to lower autocausticizing. In systems that contain only potassium compounds, the autocausticizing is low and no recarbonation is observed. In potassium-rich systems, volatilization of alkali- and/or boron-components becomes more prominent than in sodium systems.

Place, publisher, year, edition, pages
Stockholm: AB Svensk papperstidning , 2005. Vol. 20, no 2, 232-236 p.
Keyword [en]
alkali berates, boron, chemical equilibria, chemical recovery, decarbonation, partial borate autocausticizing, recovery boiler, smelt
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:umu:diva-120455ISI: 000230271800016OAI: oai:DiVA.org:umu-120455DiVA: diva2:928981
Available from: 2016-05-17 Created: 2016-05-16 Last updated: 2016-05-17Bibliographically approved

Open Access in DiVA

No full text

Search in DiVA

By author/editor
Backman, Rainer
By organisation
Energy Technology and Thermal Process Chemistry
In the same journal
Nordic Pulp & Paper Research Journal
Materials Engineering

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 7 hits
ReferencesLink to record
Permanent link

Direct link