Key Technology Research and Industrial Application of SART Process in the Treatment of Cyanide Gold Leaching Circulating Liquid
Received date: 2022-12-19
Revised date: 2023-06-16
Online published: 2023-09-20
In order to realize the comprehensive recovery of valuable metals in the cyanide circulating liquid,the comparative test and analysis of acidification and SART processes(Vulcanization-Acidification-Recycling-Concentration Process) was conducted,and the application of SART process was finally determined.Then the circulating liquid generated in the cyanide gold extraction process of the domestic gold industry was purified for the first time,and the step-by-step recovery and separation and precipitation of zinc and copper in the liquid phase of the cyanidation cycle were realized.47.45% zinc mud and 54.38% copper sludge were produced respectively,and recovered with high-grade precipitate products.And the weakly complexed cyanide is converted into free sodium cyanide and then returned to the production system for recycling,thereby reducing the cost of the cyanidation process.The application of SART process not only realizes the recovery of valuable metals,reduces the cost,but also solves the employment problem,reduces the pressure of subsequent smelting and environmental protection,and achieves good economic,environmental and social benefits.
Key words: SART process; cyanide circulating fluid; copper mud; zinc sludge; sodium cyanide
Hu QIAN , Jing SUI , Yanling ZHAO , Zhongmin XU . Key Technology Research and Industrial Application of SART Process in the Treatment of Cyanide Gold Leaching Circulating Liquid[J]. Gold Science and Technology, 2023 , 31(4) : 698 -706 . DOI: 10.11872/j.issn.1005-2518.2023.04.183
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