Chemistry of inorganic compounds – Carbon or compound thereof – Oxygen containing
Patent
1985-07-16
1987-03-31
Straub, Gary P.
Chemistry of inorganic compounds
Carbon or compound thereof
Oxygen containing
423206T, 423186, 423189, C01D 740
Patent
active
046542043
ABSTRACT:
Sodium bicarbonate is produced by introducing solid sodium carbonate, sodium sesquicarbonate, and/or Wegscheider's salt into a reversion slurry, saturated with respect to bicarbonate and containing at least 10 wt. % solids, to effect rapid and complete conversion of the feed solids to crystalline sodium bicarbonate which is recovered from the slurry. Carbon dioxide is introduced into the reversion liquor to maintain its composition at a relatively constant value, preferably in a region of the Na.sub.2 CO.sub.3 --NaHCO.sub.3 --H.sub.2 O phase diagram that minimizes the equilibrium partial pressure of CO.sub.2 vapor above such liquor.
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Copenhafer William C.
Pfeffer, III Henry A.
Rauh Francis
Egolf Christopher
Intermountain Research & Development Corporation
Straub Gary P.
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