Method for processing high-sulfur high-arsenic carbonaceous gold ores

The invention discloses a method for processing high-sulfur high-arsenic carbonaceous gold ores. The method includes the following steps: 1, carrying out inorganic carbon preprocessing on the high-sulfur high-arsenic carbonaceous gold ores, and carrying out thick washing to obtain a bottom flow slur...

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Bibliographische Detailangaben
Hauptverfasser: LI LITING, HUANG HUAIGUO, XU XIAOYANG, JIANG LI, XIONG MING, XIE HONGZHEN, GUO JINYI, CAI CHUANGKAI
Format: Patent
Sprache:eng
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Zusammenfassung:The invention discloses a method for processing high-sulfur high-arsenic carbonaceous gold ores. The method includes the following steps: 1, carrying out inorganic carbon preprocessing on the high-sulfur high-arsenic carbonaceous gold ores, and carrying out thick washing to obtain a bottom flow slurry and an overflow liquid; 2, neutralizing and purifying the overflow liquid to remove impurity metal ions in order to obtain a purified liquid, and returning the purified liquid the thick washing in step 5 in order to realize water balance; 3, adjust the liquid-solid ratio of the bottom flow slurry, and carrying out hot press pre-oxidation to obtain an oxidized ore pulp; 4) to convert the oxidation pulp residue type; (5) to convert the above , carrying out slag type conversion on the oxidized ore slurry; 5, adding water to the slag type converted oxidized ore slurry to carry out thick washing in order to obtain bottle flow oxidized slag and an overflow acid solution, and returning the overflow acid solution to step 1 in order to preprocess the high-sulfur high-arsenic carbonaceous gold ores; and 6, carrying out routine carbon slurry cyaniding leaching on the bottom flow oxidized slag to obtain gold. The method can be used to process various high-sulfur high-arsenic carbonaceous gold ores, and has the advantages of wide sources of raw materials, and good ore adaptability.