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投稿时间:2014-12-10 修订日期:2014-12-12 录用日期:2014-12-15 网络发布日期:2015-04-21
投稿时间:2014-12-10 修订日期:2014-12-12 录用日期:2014-12-15 网络发布日期:2015-04-21
中文摘要: 采用中和沉淀法对红土镍矿硝酸浸出液中杂质铝的净化及过滤分离性能进行了研究。考察了反应温度、陈化前pH和陈化时间对除铝的影响。结果表明,在下述最佳条件下,沉淀矿浆加入5%硫酸钙,真空抽滤速度可以达到0.109 m3/(h?m2),是常规沉淀法的6.4倍,镍、钴损失率均低于2%:反应温度40 ℃、陈化前pH=3.9~4.1、陈化时间30 min、负压0.04 MPa。
Abstract:Purification and separation of aluminum from nitric acid leached lixivium of laterite-nickel ore by neutralization precipitation were investigated. The effects of reaction temperature, pH value before ageing, and ageing time on aluminum removal were studied. The results show that vaccum filtration rate of aluminum precipitate slurry after adding 5% CaSO4 is 0.109 m3/(h?m2), which is 5.4 times higher than that of traditional method, loss rate of nickel and cobalt in obtained aluminum precipitate slag is 2% below under the optimum conditions including reaction temperature of 40 ℃, pH value before aging of 3.9~4.1, aging time of 30 min, and filtration negative pressure of -0.04 MPa.
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基金项目:国家自然科学基金面上项目(51274044);国家自然科学基金青年基金项目(51304023);国家自然科学基金云南省联合基金项目(U1302274)
| 作者 | 单位 | |
| 马保中 | 北京矿冶研究总院 | bzhma@126.com |
| 杨玮娇 | 北京矿冶研究总院 | |
| 杨 卜 | 北京矿冶研究总院 | |
| 陈永强 | 北京矿冶研究总院 | |
| 王成彦* | 北京矿冶研究总院 | chywang@yeah.net |
| Author Name | Affiliation | |
| MA Bao-zhong | Beijing General Research Institute of Mining Metallurgy | bzhma@126.com |
| YANG Wei-jiao | ||
| YANG-Bo | ||
| CHEN Yong-qiang | ||
| WANG Cheng-yan | chywang@yeah.net |
引用文本:
马保中,杨玮娇,杨 卜,陈永强,王成彦.红土镍矿硝酸浸出液中铝的净化与分离[J].有色金属(冶炼部分),2015(5):14-17.
MA Bao-zhong,YANG Wei-jiao,YANG-Bo,CHEN Yong-qiang,WANG Cheng-yan.Purification and Separation of Aluminum from Nitric Acid Leached Lixivium of Laterite-nickel Ore[J].Nonferrous Metals (Extractive Metallurgy),2015(5):14-17.
马保中,杨玮娇,杨 卜,陈永强,王成彦.红土镍矿硝酸浸出液中铝的净化与分离[J].有色金属(冶炼部分),2015(5):14-17.
MA Bao-zhong,YANG Wei-jiao,YANG-Bo,CHEN Yong-qiang,WANG Cheng-yan.Purification and Separation of Aluminum from Nitric Acid Leached Lixivium of Laterite-nickel Ore[J].Nonferrous Metals (Extractive Metallurgy),2015(5):14-17.

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