| 一步相转移-沉淀法制备轻质碳酸钙的沉淀工艺条件研究 |
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| 引用本文： | 杨保俊,陈曦,王百年,袁新松,董晓祥. 一步相转移-沉淀法制备轻质碳酸钙的沉淀工艺条件研究[J]. 合肥工业大学学报(自然科学版), 2011, 0(10) |
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| 作者姓名： | 杨保俊 陈曦 王百年 袁新松 董晓祥 |
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| 作者单位： | 合肥工业大学化学工程学院;合肥师范学院化学化工系; |
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| 基金项目： | 安徽省高等学校省级自然科学研究资助项目(KJ2011A227); 可控化学与材料化工安徽省重点实验室开放基金资助项目(OFCC0908) |
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| 摘 要： | 文章以磷石膏为原料,开展一步法制备轻质碳酸钙的沉淀反应工艺条件研究。以碳酸钙样品的产率为主要考察指标,通过单因素条件实验和正交实验,分别考察了沉淀反应温度、反应时间、钙离子与碳酸氢根离子的摩尔比、沉淀反应体系pH值等因素的变化对轻质碳酸钙产率的影响。在常压下,确定较适宜的沉淀反应条件为:沉淀反应温度70℃,反应时间75min,钙离子和碳酸氢根离子的摩尔比1∶1.15,沉淀反应体系pH=10。该条件下的重复实验表明,轻质碳酸钙的平均产率为95.25%。
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| 关 键 词： | 磷石膏 一步法 轻质碳酸钙 |
Study of deposition technological conditions of one-step route for the preparation of light calcium carbonates from phosphogypsum |
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| YANG Bao-jun,CHEN Xi,WANG Bai-nian,YUAN Xin-song,DONG Xiao-xiang. Study of deposition technological conditions of one-step route for the preparation of light calcium carbonates from phosphogypsum[J]. Journal of Hefei University of Technology(Natural Science), 2011, 0(10) |
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| Authors: | YANG Bao-jun CHEN Xi WANG Bai-nian YUAN Xin-song DONG Xiao-xiang |
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| Affiliation: | YANG Bao-jun1,CHEN Xi1,WANG Bai-nian1,YUAN Xin-song2,DONG Xiao-xiang1(1.School of Chemical Engineering,Hefei University of Technology,Hefei 230009,China,2.Dept.of Chemistry and Chemical Engineering,Hefei Normal University,Hefei 230601,China) |
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| Abstract: | Using phosphogypsum as raw materials,the deposition technological conditions of the one-step route for the preparation of light calcium carbonates were studied.Taking the yield of the prepared sample as the main index of the test,the influence of the deposition technological conditions,such as reaction temperature,reaction time,mol ratio of Ca2+ to HCO3-,and the pH value of reaction system,on the yield of the sample was respectively investigated by the single-factor and orthogonal experiments.Under the norm... |
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| Keywords: | phosphogypsum one-step route light calcium carbonate |
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