- Preparing method of sodium bicarbonate via carbonation reaction of alkali metal hydroxide dissolved alcohol-water aqueous solution

摘要

The present invention relates to a method for preparing sodium bicarbonate through carbonation of an alcohol-water mixed aqueous solution in which sodium hydroxide is dissolved. More specifically, a mixed aqueous solution in which sodium hydroxide is dissolved by dissolving sodium hydroxide in a mixed aqueous solution of alcohol (ROH) and water. Preparing a; Injecting and reacting a mixed gas of carbon dioxide and nitrogen into the mixed aqueous solution in which sodium hydroxide is dissolved; And it provides a method for producing sodium bicarbonate (NaHCO ₃ ) powder, comprising the step of filtering, separating and drying the product obtained by the reaction (wherein R is a C ₁ to C ₄ linear or branched alkyl group) .