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| Roasting and Cyaniding Test to Arsenic-bearing Gold Concentrate and Mineralogrical Study on Calcine and Residue |
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| DOI：doi：10.3969/j.issn.1007-7545.年份.期号.顺序号 |
| KeyWord:Arsenic-bearing gold concentrate,Refractory gold,Roasting,Process mineralogy |
| YUAN Chao-xin,TANG Ji-gang |
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| Abstract: |
| The gold recovery can reach to 92.2% from an arsenic-bearing refactory gold concentrate as by means of the two stage roasting-quenching(in the dilute acid solution)-cyaniding process,otherwise,only will be 84.5% under the routine roasting-cyaniding condition.The mineralogical study on the calcine and cyaniding residue indicates that the most gold remained in residue is enclosed by Fe_2O_3 with the ultrafine and invisible par- ticle form,thus the promise to recover fully the gold from this species concentrate is to destroy the Fe_2O_3 phase as full as possible. |
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