Gipscalcination in überhitzter Dampfatmosphäre. Ein neues Verfahren mit verringertem Energiaufwand and verbesserter Produktqualität
(1992) In Zement-Kalk-Gips 45(9). p.467-467- Abstract
- Gypsum calcination in superheated steam is investigated. It is shown that superheated steam positively influences the formation of hemihydrate and avoids formation of anhydrite. By measuring the specific surface area the products are shown mainly to consist of alpha-hemihydrate. By recovering the heat of vaporization a specific energy use of 379 kJ/kg dihydrate can be obtained. This is substantially lower than the energy used both in existing alpha-hemihydrate and beta-hemihydrate processes. A process flow-sheet is proposed based on the presented results.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3914119
- author
- Stenström, Stig LU and Hermansson, M
- organization
- publishing date
- 1992
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Zement-Kalk-Gips
- volume
- 45
- issue
- 9
- pages
- 467 - 467
- publisher
- Bauverlag GmbH
- external identifiers
-
- wos:A1992JU38200007
- ISSN
- 0722-4400
- language
- German
- LU publication?
- yes
- id
- 163d5c41-d0a9-420b-bfad-cb5e8bce832a (old id 3914119)
- date added to LUP
- 2016-04-01 16:01:09
- date last changed
- 2018-11-21 20:38:08
@article{163d5c41-d0a9-420b-bfad-cb5e8bce832a, abstract = {{Gypsum calcination in superheated steam is investigated. It is shown that superheated steam positively influences the formation of hemihydrate and avoids formation of anhydrite. By measuring the specific surface area the products are shown mainly to consist of alpha-hemihydrate. By recovering the heat of vaporization a specific energy use of 379 kJ/kg dihydrate can be obtained. This is substantially lower than the energy used both in existing alpha-hemihydrate and beta-hemihydrate processes. A process flow-sheet is proposed based on the presented results.}}, author = {{Stenström, Stig and Hermansson, M}}, issn = {{0722-4400}}, language = {{ger}}, number = {{9}}, pages = {{467--467}}, publisher = {{Bauverlag GmbH}}, series = {{Zement-Kalk-Gips}}, title = {{Gipscalcination in überhitzter Dampfatmosphäre. Ein neues Verfahren mit verringertem Energiaufwand and verbesserter Produktqualität}}, volume = {{45}}, year = {{1992}}, }