%0 Journal Article
%T EDTA浸取法从冶锌铁渣中回收锌<br>Retrieving Zinc from Iron-Zinc Slag by EDTA Leaching Method
%A 余迈新
%A 罗晖
%A 易浪波
%J Advances in Environmental Protection
%P 355-361
%@ 2164-5493
%D 2020
%I Hans Publishing
%R 10.12677/AEP.2020.103041
%X <p align=\"justify\">
	为了对冶锌铁渣中锌回收利用，以EDTA为浸取剂，对冶锌铁渣进行浸取实验，考察了EDTA浓度、温度、固液比及反应时间对锌浸出效果及选择性的影响。结果表明：EDTA浸取时对锌有较好的浸出率和选择性，能优先浸取锌。EDTA的浓度和液固比对浸取影响高度显著，浸取时间对结果有一定的影响，浸取温度对结果影响较小。在EDTA浓度为0.4 mol/L，浸出温度为20℃，固液比为6 L/kg的条件下反应浸取2 h，锌的浸出率达99.77%。<br />
In order to investigate the leaching efficiency of zinc from iron-zinc slag via EDTA method, the ef-fects of initial concentration of ethylenediaminetetraacetic acid (EDTA), temperature , liquid-solid ratio and reaction time on the leaching rate and selectivity in process of leaching zinc from iron-zinc slag were studied. The results showed that EDTA method exhibited good leaching efficiency and selectivity of zinc, zinc was leached from iron-zinc slag preferentially. When the total EDTA concentration was 0.4 mol/L, the leaching temperature was 20？C, the ratio of leaching agent volume to zinc dust mass was 6 L/kg and the leaching time was 2 h, the extraction rate of zinc was 99.77%.
</p>
%K 冶锌铁渣，EDTA，浸取，锌的回收<br>Iron-Zinc Slag
%K Ethylenediaminetetraacetic Acid
%K Leaching
%K Recovery of Zinc
%U http://www.hanspub.org/journal/PaperInformation.aspx?PaperID=35880