1.Biological oxidation 2.Oxidation processing need 4-6 danys 3.The seperated liquid could circulate use after be treated

This equipment used for the bio-oxidation of refractory leachable gold concentrate containing arsenium --thiourea RIP gold extraction processing method

Its features are biological oxidization., i.e.; after gold concentrate remove iron scrape by regrinding and magnetic separation, remove agents by thickening, adding water,sulfuric acid and biological medium according to the proportion to mix slurry  of  solid concentration 16%-25% with biological oxidation tank, then entering the to the biological oxidation tank for biological oxidation pretreatment, 

Inoculated oxidized sulphurous acid bacillus and other autotrophs in biological oxidation tank to oxidize the sulphide materials of pyrite and arsenopyrite.

The oxidation process takes 4-6 days,

Oxidized slurry to process solid- liquid separation by removing of iron scrap,graphite carbon and thickening,washings and filtering .

The separated liquid after treatment return to the concentrate mixing cycling operations 

The separated solid oxide slag adding into the next step for gold extraction

Main technical parameters

Item	Unit	Model
		4550	5560	6570	7075	8085	9095	95100	105110	120125	150160
Diameter of tank	mm	Φ4500	Φ5500	Φ6500	Φ7000	Φ8000	Φ9000	Φ9500	Φ10500	Φ12000	Φ15000
Height of tank	mm	5000	6000	7000	7500	8500	9500	10000	11000	15000	16000
Effective capacity	m3	74.75	135.42	215	269	402	480	572	673	785
Impeller speed	r/min	33.5	30.64	23	21	17~20	17~20	10~17	10~17	10~17	10~17
Slurry density	%	≤45	≤45	≤45	≤45	≤45	≤45	≤45	≤45	≤45	≤45
Slurry specific gravity	t/m3	≤1.4	≤1.4	≤1.4	≤1.4	≤1.4	≤1.4	≤1.4	≤1.4	≤1.4	≤1.4
PH value		About 1	About 1	About 1	About 1	About  1	About  1	About  1	About  1	About  1	About  1
(NH2)2CS Density	g/L	6~18	6~18	6~18	6~18	6~18	6~18	6~18	6~18	6~18	6~18
Motor power	kW	11	15	22~37	22~37	37~110	37~110	37~110	37~110	37~110	37~100

This equipment used for the bio-oxidation of refractory leachable gold concentrate containing arsenium ------thiourea RIP gold extraction processing methodIts features are biological oxidization., i.e.; after gold concentrate remove iron scrape by regrinding and magnetic separation, remove agents by thickening, adding water,sulfuric acid and biological medium according to the proportion to mix slurry  of  solid concentration 16%-25% with biological oxidation tank, then entering the to the biological oxidation tank for biological oxidation pretreatment, Inoculated oxidized sulphurous acid bacillus and other autotrophs in biological oxidation tank to oxidize the sulphide materials of pyrite and arsenopyrite.The oxidation process takes 4-6 days,Oxidized slurry to process solid- liquid separation by removing of iron scrap,graphite carbon and thickening,washings and filtering .The separated liquid after treatment return to the concentrate mixing cycling operations The separated solid oxide slag adding into the next step for gold extraction

Bio-ox Tank (Biological Oxidation Tank) mining equipment