收稿日期: 2015-06-08
修回日期: 2015-07-19
网络出版日期: 2015-11-16
Influence of Chloride Ion on the Biooxidation of Gold-containing Pyrite
Received date: 2015-06-08
Revised date: 2015-07-19
Online published: 2015-11-16
梁长利 , 覃文庆 , 陈景河 , 杨杭渠 , 衷水平 . 氯离子对载金黄铁矿生物氧化的影响[J]. 黄金科学技术, 2015 , 23(4) : 86 -90 . DOI: 10.11872/j.issn.1005-2518.2015.04.086
The influence of chloride ion on the biooxidation of gold-containing pyrite and the formation of products were studied in this work.Biooxidaiton results showed that the addition of 0.01 mol/L chloride ion has significantly promotion action on the oxidation dissolution of gold-containing pyrite,while it has inhibition action on the biooxidation of gold-containing pyrite for it can inhibit the growth of the microorganisms when the concentration of chloride ion is higher than 0.04 mol/L.XRD analysis showed the formation of elemental sulfur on the surface of the ore when the chloride ion is in the absence of the biooxidation,while the presence of chloride ion can effectively eliminate the accumulation of elemental sulfur on the ore surface.The promotion action of chloride ion should mainly for it can eliminate the accumulation of elemental sulfur,which hamper the biooxidation of gold-containing pyrite.
Key words: hloride ion; gold-containing pyrite; biooxidaiton; elemental sulfur
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