Modified lime sulphur and application thereof in gold leaching technology
A lime-sulfur mixture and modification technology, applied in the direction of improving the process efficiency, can solve the problems of the adaptability of easily oxidized and decomposed ore, the process flow is not perfect, the consumption of chemicals is large, etc. The effect of low damage and high recovery rate
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Embodiment 1
[0025] At room temperature, take 1 part of the original lime sulfur mixture, grind it into powder, make its particle size less than or equal to 2mm, add 0.05 part of sodium hexametaphosphate, 0.375 part of calcium peroxide, 0.05 part of potassium ferricyanate, 0.01 part of lead nitrate and 0.25 part of sodium bromide are mixed uniformly to obtain a modified lime sulfur mixture (the above parts are calculated by mass ratio). Water is added to the obtained modified lime-sulfur agent to prepare a modified lime-sulfur agent leaching solution. Make the massfraction of the original stone sulfur in the modified lime sulfur leachate in the modified lime sulfur be 0.4%, the mass percentage of sodium hexametaphosphate in the modified lime sulfur leach is 0.02%, calcium peroxide is in the modified lime sulfur leachate The mass percentage in the modified lime sulfur leach solution is 0.15%, the mass percentage of potassium ferricyanate in the modified lime sulfur leach solution is 0.02%, ...
Embodiment 2
[0027] At room temperature, take 1 part of the original lime sulfur mixture, grind it into powder, make its particle size less than or equal to 2mm, add 0.0438 part of sodium hexametaphosphate, 0.4375 part of calcium peroxide, 0.1 part of potassium ferricyanate, Mix 0.0375 parts of lead nitrate and 0.3125 parts of potassium bromide evenly to obtain a modified lime-sulfur mixture (the above-mentioned parts are calculated by mass ratio); add water to the obtained modified lime-sulfur mixture to prepare a modified lime-sulfur mixture leaching solution. In the modified lime sulfur leach solution, the mass fraction of the original stone sulfur in the modified lime sulfur leach is 0.8%, the mass fraction of sodium hexametaphosphate in the modified lime sulfur leach is 0.035%, and the calcium peroxide in the modified lime sulfur leach is 0.035%. The mass fraction in the lime sulfur leach solution is 0.35%, the mass fraction of potassium ferricyanate in the modified lime sulfur leach s...
Embodiment 3
[0029]At room temperature, take 1 part of the original lime sulfur mixture, grind it into powder, make its particle size less than or equal to 2mm, add 0.25 part of sodium hexametaphosphate, 0.4 part of calcium peroxide, 0.3 part of potassium ferricyanate, Mix 0.1 part of lead nitrate and 0.4 part of calcium bromide evenly to obtain a modified lime-sulfur mixture (the above-mentioned parts are calculated by mass ratio); add water to the obtained modified lime-sulfur mixture to prepare a modified lime-sulfur mixture leaching solution. Make the mass fraction of the original stone sulfur in the modified lime sulfur leachate in the modified lime sulfur 10%, the mass fraction of sodium hexametaphosphate in the modified lime sulfur leach is 2.5%, calcium peroxide in the modified lime The mass fraction in the leach solution of the sulfur compound is 4%, the mass fraction of potassium ferricyanate in the leach solution of the modified lime sulfur compound is 3%, the mass fraction of le...
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