We adopt the "three-effect countercurrent falling film evaporation" process. The 32% NaOH solution sent from outside the boundary area is added to the III-effect falling film evaporator, where its concentration is increased from 32% to 36%. After being concent...
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We adopt the "pre-concentration + final concentration" process. After the flow of the 50% raw caustic soda solution is stabilized through the control valve and flowmeter, it is transported to the pre-concentrator, where the concentration is increased to 61%. T...
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We adopt the "two-effect evaporation + pre-concentration + final concentration" process. The 32% raw caustic soda is transported to the II-effect falling-film evaporator through the raw caustic soda pump, where the concentration is increased to 47%. It then pa...
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