CAJ | 학술논문

研究了废铅膏泥煅烧和煅烧产物在 HCl-MgCl2 溶液中的脱硫转化.通过 TG-DTA分析 ,确定了废铅膏泥煅烧适宜温度 ;通过XRD分析 ,确定了脱硫转化产物的物相组成.重点研究了煅烧产物在 HCl-M gCl2溶液中的脱硫转化过程 ,考察了各参数对转化过程中硫脱除率的影响.试验结果表明 ,在废铅膏泥粒度-0 .075 mm占71% 、反应时间2 h、反应温度90 ℃ 、液固体积质量比5:1、氯化镁浓度5 mol/L、盐酸浓度0 .62 mol/L条件下 ,废铅膏泥脱硫率达96 .89 % .
연구료폐연고니단소화단소산물재 HCl-MgCl2 용액중적탈류전화.통과 TG-DTA분석 ,학정료폐연고니단소괄의온도 ;통과XRD분석 ,학정료탈류전화산물적물상조성.중점연구료단소산물재 HCl-M gCl2용액중적탈류전화과정 ,고찰료각삼수대전화과정중류탈제솔적영향.시험결과표명 ,재폐연고니립도-0 .075 mm점71% 、반응시간2 h、반응온도90 ℃ 、액고체적질량비5:1、록화미농도5 mol/L、염산농도0 .62 mol/L조건하 ,폐연고니탈류솔체96 .89 % .
Calcining of spent lead paste and desulfurization transformation of calcined product in HCl-MgCl2 solution were investigated .Appropriate calcining temperature was determined by TG-DTA for spent lead paste .Phase components of transformation product were determined by XRD .The desulfurization transformation process of calcined product in hydrochloric acid-magnesium chloride solution was focused research .Effects of various parameters on the removal of sulfur in the transformation process were examined .Experimental results indicate that the removal rate of sulfur in spent lead paste can reach 96 .89% under the conditions of spent lead paste size -0 .075mm accounting for 71% ,reaction time of 2 h ,reaction temperature of 90 ℃ ,ratio of liquid-to-solid of 5:1 ,magnesium chloride concentration of 5 mol/L and hydrochloric acid concentration of 0 .62 mol/L .