U.S. Department of EnergyOffice of Scientific and Technical Information
Use of precalciners to remove alkali from raw material in the cement industry. Quarterly technical progress report, August-October 1978
Abstract
A literature survey assisted in defining the role of CaCl/sub 2/ and limitations on its applicability to alkali reduction experimentation. Additional insight into the mechanism and parameters of heat exchange in the precalciner-type kiln systems has been gained from the literature search, which culminated in the preparation of the bibliography covering thermal treatment of raw materials. Experiments investigating the efficiency of alkali volatization from pure argillaceous minerals are underway. Initial results have been encouraging, as significant fractions of total alkali were volatilized even under the static conditions employed. Clay minerals were, rather surprisingly, more resistant to alkali removal than feldspars when CaCl/sub 2/ was used. This may indicate that their structure collapsed upon removal of some alkali, and that CaCO/sub 3/ should be added to the clay burns.
- Authors:
- Publication Date:
- Research Org.:
- Portland Cement Association, Skokie, IL (USA)
- OSTI Identifier:
- 6063823
- Report Number(s):
- COO-4929-1
- DOE Contract Number:
- EM-78-C-02-4929
- Resource Type:
- Technical Report
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ALKALI METALS; REMOVAL; CEMENTS; PRODUCTION; HYDROXIDES; CALCIUM CHLORIDES; ENERGY CONSERVATION; EVAPORATION; KILNS; ALKALINE EARTH METAL COMPOUNDS; BUILDING MATERIALS; CALCIUM COMPOUNDS; CALCIUM HALIDES; CHLORIDES; CHLORINE COMPOUNDS; ELEMENTS; HALIDES; HALOGEN COMPOUNDS; HYDROGEN COMPOUNDS; MATERIALS; METALS; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; 320301* - Energy Conservation, Consumption, & Utilization- Industrial & Agricultural Processes- Energy Sources; 400201 - Chemical & Physicochemical Properties
Citation Formats
Miller, F. M. Use of precalciners to remove alkali from raw material in the cement industry. Quarterly technical progress report, August-October 1978. United States: N. p., 1978.
Web. doi:10.2172/6063823.
Miller, F. M. Use of precalciners to remove alkali from raw material in the cement industry. Quarterly technical progress report, August-October 1978. United States. https://doi.org/10.2172/6063823
Miller, F. M. 1978.
"Use of precalciners to remove alkali from raw material in the cement industry. Quarterly technical progress report, August-October 1978". United States. https://doi.org/10.2172/6063823. https://www.osti.gov/servlets/purl/6063823.
@article{osti_6063823,
title = {Use of precalciners to remove alkali from raw material in the cement industry. Quarterly technical progress report, August-October 1978},
author = {Miller, F. M.},
abstractNote = {A literature survey assisted in defining the role of CaCl/sub 2/ and limitations on its applicability to alkali reduction experimentation. Additional insight into the mechanism and parameters of heat exchange in the precalciner-type kiln systems has been gained from the literature search, which culminated in the preparation of the bibliography covering thermal treatment of raw materials. Experiments investigating the efficiency of alkali volatization from pure argillaceous minerals are underway. Initial results have been encouraging, as significant fractions of total alkali were volatilized even under the static conditions employed. Clay minerals were, rather surprisingly, more resistant to alkali removal than feldspars when CaCl/sub 2/ was used. This may indicate that their structure collapsed upon removal of some alkali, and that CaCO/sub 3/ should be added to the clay burns.},
doi = {10.2172/6063823},
url = {https://www.osti.gov/biblio/6063823},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Nov 01 00:00:00 EST 1978},
month = {Wed Nov 01 00:00:00 EST 1978}
}