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Gipscalcination in überhitzter Dampfatmosphäre. Ein neues Verfahren mit verringertem Energiaufwand and verbesserter Produktqualität

Stenström, Stig LU and Hermansson, M (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.
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author
organization
publishing date
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
2013-07-01 10:56:45
date last changed
2016-04-16 03:42:28
@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},
}