| 中和结晶过程对Ta2O5粉末粒度特性的影响 |
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| 引用本文： | 周洁英,邓曹锋,赖兰萍,陈冬英.中和结晶过程对Ta2O5粉末粒度特性的影响[J].稀有金属与硬质合金,2011,39(2). |
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| 作者姓名： | 周洁英 邓曹锋 赖兰萍 陈冬英 |
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| 作者单位： | 1. 赣州有色冶金研究所,江西赣州,341000
2. 赣州江钨新型合金材料有限公司,江西赣州,341000 |
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| 摘 要： | 采用中和结晶-煅烧法制备Ta2O5粉末,分别考察了中和结晶过程中钽液浓度、钽液起始pH值、结晶温度、氨水浓度、氨水流速和搅拌速度等六个因素对Ta2o5粉末粒度的影响.试验结果表明,在钽液浓度c(Ta2O5)为95g/L,钽液起始pH=1.80,水浴温度60℃,氨水浓度8.0 mol/L,氨水流速1.0 mL/min,搅拌速度40 r/min的条件下,制得的Ta2o5粉末最大平均粒径可达180μm,完全满足生产需求.
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| 关 键 词： | Ta2O5粉末 中和结晶 粒度特性 结晶温度 |
Influences of Neutralization Crystallization on the Particle Size of Ta2O5 Powder |
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| ZHOU Jie-ying,DENG Cao-feng,LAI Lan-ping,CHEN Dong-ying.Influences of Neutralization Crystallization on the Particle Size of Ta2O5 Powder[J].Rare Metals and Cemented Carbides,2011,39(2). |
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| Authors: | ZHOU Jie-ying DENG Cao-feng LAI Lan-ping CHEN Dong-ying |
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| Affiliation: | ZHOU Jie-ying1,DENG Cao-feng2,LAI Lan-ping1,CHEN Dong-ying1(1.Ganzhou Nonferrous Metallurgy Research Institute,Ganzhou 341000,China,2.Ganzhou Jiangwu New Alloy Material Co.,LTD,China) |
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| Abstract: | Ta2O5 powder was prepared by neutralization crystallization and calcination.The influences of the six factors in the process of neutralization crystallization on the Ta2O5 particle size were studied including the concentration of tantalum solution,the initial pH of tantalum solution,crystallization temperature,ammonia concentration,ammonia flow rate and stirring speed.The optimal experimental conditions are as follows:the concentration of tantalum solution is 95 g/L,the initial pH of tantalum solution 1.80,... |
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| Keywords: | Ta2O5 powder neutralization crystallization size characteristic crystallization temperature |
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