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linear screen sulfide gold processing high quality

alluvial gold dressing plant in liberian

alluvial gold dressing plant in liberian

The gold ore dressing production line adopts gravity dressing method. Because gold is relatively heavy. The proportion of gold is between 17.50 and 18.0. There is a large specific gravity difference between useful minerals and waste rocks. This is one of the necessary conditions for gravity dressing. Using this property of gold and the specific needs of customers, Forui Machinery Factory designed the following gravity beneficiation scheme.

The gold ore is fed into the feeder through the hopper. Then the feeder will feed the raw ore evenly into the linear vibrating screen. A linear vibrating screen divides the gold ore into two grain sizes.

Then, the placer gold that meets the granularity conditions is sent to AM30 Mineral Jig and 2LTC-6109/8t Mineral Jig, respectively. Coarse concentrate and tailings are obtained by gravity separation of gold ore.

After field installation and debugging by engineers of Forui Machinery Factory. The grade, recovery rate and yield of gold concentrate obtained by this production line can meet the requirements of customers. The project has brought considerable economic benefits to the client. It has been highly appraised by customers.

recovery of gold from sulfide refractory gold ore

recovery of gold from sulfide refractory gold ore

Recovering gold from sulfide refractory gold ore has been an important guarantee for the sustainable development of gold industry, while there are many challenges in the treatment of sulfide refractory gold ore, such as environmental pollution and low gold recovery. In this study, A novel method for gold recovery from refractory gold ore was proposed with the purpose of improving recovery efficiency of gold and reducing environmental pollution. The method consisted of two stages roasting for arsenic and sulfur removal, gold recovery by thiourea leaching, followed by an enhanced chlorination roasting for gold recovery in the presence of pyrite. In the two-stage roasting process, the phase transition of FeAsS and FeS2 during the roasting process was analyzed. In the first stage roasting process, the removal efficiency of arsenic reached 96.98% with only 43.07% sulfur was removed. We achieved removal efficiency of 97.19% for sulfur and 84.11% of gold was exposed during the second stage roasting process. The thiourea leaching combined with pyrite enhanced chlorination roasting was first proposed to effectively extract gold from the second stage roasting slag, and the pyrite shown a great role in promoting gold extraction during chlorination roasting. In this process, gold could be effectively recovered from the sulfide refractory gold ore with a recovery efficiency of 98.06%.

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