C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
53/259
C22B 26/20 (2006.01) C22B 5/04 (2006.01)
Patent
CA 1240155
Abstract Calcium is produced by a thermal reduction process in a reaction-condensation system having a reaction zone and a condensation zone. According to the process, a reducing agent is contacted or reacted in the reaction zone with at least a partially molten slag to produce calcium vapor. The calcium vapor is transported from the reaction zone to the condensation zone and condensed therein.
494446
Ballain Marlyn D.
Christini Roy A.
Aluminum Company Of America
Smart & Biggar
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