Use of precalciners to remove alkali from raw materials in the cement industry. Quarterly technical progress report, November 1979-January 1980
Description:
Experiments using the sulfate fusion technique have continued. High degrees of alkali removal have been achieved using CaSO/sub 4/ admixtures with added CaCl/sub 2/ and Mg(NO/sub 3/)/sub 2/. The presence of Mg/sup 2 +/ or Cl/sup -/ in the mixtures did not affect the phase separation significantly. There was considerable evidence for preferential migration of K/sup +/ into the sulfate phase, relative to Na/sup +/. A new technique, the powder drop method, was used to attempt to more closely simul…
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Date:
March 1, 1980
Creator:
Gartner, Ellis M.
Item Type:
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Partner:
UNT Libraries Government Documents Department