| 铝渣灰中氨氮的回收 |
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| 引用本文： | 周长祥,王卿,张文娟,赵伟.铝渣灰中氨氮的回收[J].矿产保护与利用,2012(3):38-41. |
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| 作者姓名： | 周长祥 王卿 张文娟 赵伟 |
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| 作者单位： | 1. 山东省地质科学实验研究院
2. 金属矿成矿地质过程与资源利用重点实验室,山东济南,250013 |
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| 摘 要： | 铝渣灰中的氮以AIN形式存在并与其它成分紧密混杂.进行了AIN水解、回收液氨及硫酸铵的试验研究.A1N水解产生的氨经精馏、压缩、冷凝可获得成品液氨,或者经工业硫酸吸收、结晶、离心烘干得到铵盐,氨氮回收率达95％.
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| 关 键 词： | 铝渣灰 AIN 氨氮回收 液氨 氨水 硫酸铵 |
The Recovery of Ammonia Nitrogen From Aluminum Slag Ashes |
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| ZHOU Chang-xiang
,
Wang Qing
,
ZHANG Wen-juan
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ZHAO Wei.The Recovery of Ammonia Nitrogen From Aluminum Slag Ashes[J].Conservation and Utilization of Mineral Resources,2012(3):38-41. |
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| Authors: | ZHOU Chang-xiang Wang Qing ZHANG Wen-juan ZHAO Wei |
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| Affiliation: | 1.Shandong Institute and Laboratory of Geological Sciences;2.The central Laboratory about the process of metal mine generatedand and resources utilized,Jinan,Shandong 250013,China) |
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| Abstract: | Ammonia exists in form of nitrogen in aluminum slag ash and is closely mixed with other components.The tests of AIN hydrolysis and the recovery of liquid nitrogen and ammonia sulfate were conducted.From the ammonia produced in the hydrolysis of AIN,Liquid ammonia could be obtained by distillation,compression and condensation,while ammonia salt could be obtained by industrial sulphuric acid absorption,crystallization and centrifugal drying,the recovery of ammonia nitrogen could reach to 95%. |
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| Keywords: | aluminum slag ash AIN ammonia-nitrogen recovery aqueous ammonia ammonia water ammonium sulfate |
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