Abstract:

We study the method of gold extraction from HCl-HAuCl4 solution with contenting 20 mg/L gold by DBC.Though investigating the effect of organic phase composition,extraction time,temperature and phase ratio on gold extraction,we obtain the basic regularity of gold extraction,the liquid with contenting 19 mg/L gold from practical production,and the recovery of extraction is 97.01%.The results indicate that DBC can extract gold effectively from low concentration of gold.

Key words: DBC, Extraction, Gold, Tail solution with high comtent