Thiosulfate gold extraction method taking alkyl trimethyl quaternary ammonium salt as additive
A technology of alkyl trimethyl quaternary ammonium salt and thiosulfate, applied in the field of hydrometallurgy
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Embodiment 1
[0020] In this embodiment, a gold mine is used as the treatment object, and the gold mine contains 38.51% iron, 0.57% copper, and 2.17g / t gold.
[0021] The thiosulfate gold extraction method using alkyl trimethyl quaternary ammonium salt as additive described in this embodiment specifically includes the following steps, such as figure 1 Shown:
[0022] (1) After the ore is crushed, it is wet-milled until the ore fineness -200 mesh accounts for more than 90%, and the concentration of the ore pulp is controlled to 40% by adding an appropriate amount of water, and the pH is adjusted to 9 by sodium hydroxide strips;
[0023] (2) According to the water content, solid octadecyltrimethylammonium chloride is added to the pulp to make the concentration 0.1mol / L;
[0024] (3) According to the water content, add ethylenediamine and copper ions in sequence to the pulp obtained in step (2) to make the concentrations 0.003 mol / L and 0.0015 mol / L;
[0025] (4) In terms of water content, ...
Embodiment 2
[0028] Present embodiment is processing object with certain gold ore, and gold-containing 1.8g / t, copper 0.15%, iron 26.41% are contained in this gold ore.
[0029] The thiosulfate gold extraction method using alkyl trimethyl quaternary ammonium salt as additive described in this embodiment specifically includes the following steps, such as figure 1 Shown:
[0030] (1) After the ore is crushed, it is wet-milled until the ore fineness -200 mesh accounts for more than 90%, and the concentration of the ore slurry is controlled to 30% by adding an appropriate amount of water, and the pH is adjusted to 8 by sodium hydroxide strips;
[0031] (2) In terms of water content, add octaalkyltrimethylammonium bromide solution to the pulp to make it at a concentration of 0.01 mol / dm 3 ;
[0032] (3) According to the water content, add ethylenediamine and copper ions in sequence to the pulp obtained in step (2) to make the concentration 0.09 mol / dm 3 , 0.03 mol / dm 3 ;
[0033] (4) Add ...
Embodiment 3
[0036] In this embodiment, a gold mine is used as the treatment object, and the gold mine contains 2.20 g / t of gold, 13.07% of iron, 1.4% of copper, and 2.2% of manganese.
[0037] The thiosulfate gold extraction method using alkyl trimethyl quaternary ammonium salt as additive described in this embodiment specifically includes the following steps, such as figure 1 Shown:
[0038] (1) In terms of water content, the ore is crushed and wet-milled until the ore fineness -200 mesh accounts for more than 90%, and the concentration of the ore slurry is controlled to 40% by adding an appropriate amount of water, and the pH is adjusted to 10 by sodium hydroxide strips;
[0039] (2) According to the water content, solid tetradecyltrimethylammonium fluoride is added to the pulp to make the concentration 0.05 mol / dm 3 ;
[0040] (3) According to the water content, add ethylenediamine and copper ions in sequence to the slurry obtained in step (2) to make the concentration 0.03 mol / dm ...
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