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요약정보
含锰废水中锰的回收和制备电池级硫酸锰 / Recovery and Preparation of Manganese from Manganese Containing Wastewater
Resource Type
Academic Journal
Authors
马文培
;
徐海峰
;
尚浩东
;
莫红兵
;
MA Wenpei
;
XU Haifeng
;
SHANG Haodong
;
MO Hongbing
Source
中国锰业 / China's Manganese Industry
. 41(2):13-24
Subject
含锰废水
锰回收
钙镁分离
电池级硫酸锰
Language
Chinese
ISSN
1002-4336
Online Access
Find it @ DONGA
초록
为处理高钙镁含锰废水中锰的回收问题,采用合成沉淀剂回收其中的锰并制备电池级硫酸锰.通过控制变量法分别考察了反应时间、温度、滴加速率、沉淀剂的用量对锰、镁、钙分离效果的影响.结果表明分离的最佳条件为:合成沉淀剂的加入量n(Mn2+)∶n(C)=1∶1,滴加速率为9 mL/min,温度为50℃,滴加完成后保持反应30 min,锰的回收率达到 99.65%,镁离子、钙离子的保留率分别为99.99%,98.88%.滤饼用1 mol/L的硫酸进行酸解,过滤、重结晶得到产品一水硫酸锰,经分析产品中锰的质量分数为31.97%,钙镁分别为 0.018%和 0.001%,符合《电池用硫酸锰》(HG/T 4823-2015)的质量标准,实现了含锰废水中锰资源的高效利用,对于处理高镁钙含锰废水具有较大工业应用价值.
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