Comprehensive utilization method of iron ions in pressure leaching solutions of arsenic-bearing gold mine

The invention relates to a comprehensive utilization method of iron ions in pressure leaching solutions of arsenic-bearing gold mine. The comprehensive utilization method is carried out according to the following steps and conditions that three-stage stirring acidification is conducted, gold concent...

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Bibliographische Detailangaben
Hauptverfasser:	XU XIAOYANG, HUANG HUAIGUO, CHEN QINGGEN, WANG CHUN, DING WENTAO, XIONG MING, CHEN JINGHE, GUO JINYI, CAI CHUANGKAI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS FERROUS OR NON-FERROUS ALLOYS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	The invention relates to a comprehensive utilization method of iron ions in pressure leaching solutions of arsenic-bearing gold mine. The comprehensive utilization method is carried out according to the following steps and conditions that three-stage stirring acidification is conducted, gold concentrates (middlings) and oxidation leaching solutions which are first started with sulfuric acid and then obtained through a step D are stirred into pulp and subjected to an acidification reaction, carbonate is decomposed, the reaction is carried out in first to third stirring tanks which are connectedin series, and the oxidation leaching solutions are added according to the calculated value of the formula V=980*Omega/CH2SO4+2.625CFe3+; thickening is conducted, acidized mine pulp is added into a thickener for sedimentation, then alkali is first added to acidizing fluid, and residual oxidation leaching solutions are used for neutralization impurity removal after start; pressurization oxidationis carried out, and acidiz