| 氨水-草酸共沉淀法中试制备微米CeO2工艺的初步研究 |
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| 引用本文： | 周国永,韦岸宏.氨水-草酸共沉淀法中试制备微米CeO2工艺的初步研究[J].化工技术与开发,2011,40(11):1-4. |
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| 作者姓名： | 周国永 韦岸宏 |
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| 作者单位： | 贺州学院化学与生物工程系,广西 贺州,542800 |
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| 基金项目： | 广西科学研究与技术开发计划项目[桂科攻(1140001-8)]; 广西壮族自治区教育厅科研项目(200911LX443); 桂东特色资源开发及利用研究实验室(广西贺州)开放研究基金资助项目(2009SYS[2]11); 贺州学院科研项目(2009KYYB02),贺州学院教育教学改革工程项目立项——重点项目(hzxyjg2010001) |
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| 摘 要： | 以氨水-草酸为共沉淀剂对氯化铈进行了沉淀实验,研究了反应温度、物料浓度、搅拌强度、陈化时间等因素对草酸盐粒度的影响,确定了较佳反应条件:草酸共沉淀法,陈化时间60min,CeCl3浓度1mol· L-1,搅拌速度400r·min-1,反应时间3h,焙烧温度800℃,氨水-草酸pH为1～6,制备了微米级的氧化铈并进行了中...
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| 关 键 词： | 草酸 氨水 粒度 氧化铈 |
Preliminary Study on Pilot Plant Test Preparation of Micrometer Ceria by Ammonium hydroxide-Oxalic acid Co-precipitation Method |
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| ZHOU Guo-yong,WEI An-hong.Preliminary Study on Pilot Plant Test Preparation of Micrometer Ceria by Ammonium hydroxide-Oxalic acid Co-precipitation Method[J].Technology & Development of Chemical Industry,2011,40(11):1-4. |
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| Authors: | ZHOU Guo-yong WEI An-hong |
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| Affiliation: | ZHOU Guo-yong,WEI An-hong(Department of Chemical and Biological Engineering,Hezhou University,Hezhou 542800,China) |
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| Abstract: | The preparation of micrometer ceria by co-precipitation method was discussed,and the roast temperature was 800℃,the pH of ammonium bicarbonate-oxalic acid was 1～6.Several micrometer ceria was synthesized and the optimum conditions were investigated as followed: ammonium hydroxide-oxalic acid coprecipitation method,aging time 1h,the concentration of CeCl3 was 1mol/L,agitation speed was 400r/min.Oxalic acid and ammonia were as precipitation agents to precipitate cerium chloride,the effect of reaction temperature,material density,stirring intensity and aging time on the size of oxalate was observed and then different particle size of oxalate was prepared according to the result. |
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| Keywords: | oxalic acid ammonium hydroxide size ceria |
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