Research on optimization of chlorine removal rate of zinc suboxide based on RSM
Received:April 12, 2024   Revised:June 18, 2024   Accepted:July 02, 2024      Published Online:August 05, 2025
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KeyWord:response surface method; Zinc suboxide; Removal rate; chlorine;sodium carbonate
                 
AuthorInstitution
Shen Jialing Western Mining Group Technology Development Co,LTD
LI Yaoshan Western Mining Group Technology Development Co,LTD
Sun Fubin Western Mining Group Technology Development Co,LTD
ZHAO Fang Western Mining Group Technology Development Co,LTD
Wen Kan Western Mining Group Technology Development Co,LTD
Liu Yuan Western Mining Group Technology Development Co,LTD
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Abstract:
      Based on the response surface method (RSM), the effect of zinc oxide alkaline washing parameters on chlorine removal rate was optimized. The relationship model between chlorine removal rate (η) and temperature (A, ℃), reaction time (B, min) and the amount of Na2CO3 (C, %) in zinc secondary oxide was established through experimental design and regression analysis. The experimental results show that the parameters of the response surface quadratic regression model are significant, and the order of influence of temperature, time and the amount of Na2CO3 on the removal rate of chlorine is A > B=C. The F value of AB is 0.62, the F value of AC is 0.039, and the F value of BC is 3.88. In the process of interaction, the order of influence on chlorine removal rate is BC > AB > AC. When the temperature is 70℃, the time is 60min, and the dosage of Na2CO3 is 9.85%, the predicted chlorine removal rate is 93.82%. Through three experiments, the average chlorine removal rate is 92.23%, which is 1.59 deviation from the predicted value, and the agreement is high, indicating that this condition is the best process condition for chlorine removal.
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