Hi
My English is not good. And I apologize for that.
I'm dealing with a rock mine and I came across something strange in my experiments.
Samples taken contain about 1 gram per kilogram of gold up to 40 ppm.
The ore contains Galena, pyrite, chalcopyrite and so on.
It can be said that it is a sulfide rock and it has many problems in this regard ...
We usually use sodium cyanide for initial testing. NaOH and lime are used to increase the pH. The initial pH is in the range of 6. Unlike other places, to increase the pH, more than normal NaOH should be consumed.
If used less, the pH remains in the same range of 6.
As NaOH increases, the volume of the soil suddenly increases and the solution suddenly turns into a paste.
I have not had this problem before.
What substances have I encountered?
My English is not good. And I apologize for that.
I'm dealing with a rock mine and I came across something strange in my experiments.
Samples taken contain about 1 gram per kilogram of gold up to 40 ppm.
The ore contains Galena, pyrite, chalcopyrite and so on.
It can be said that it is a sulfide rock and it has many problems in this regard ...
We usually use sodium cyanide for initial testing. NaOH and lime are used to increase the pH. The initial pH is in the range of 6. Unlike other places, to increase the pH, more than normal NaOH should be consumed.
If used less, the pH remains in the same range of 6.
As NaOH increases, the volume of the soil suddenly increases and the solution suddenly turns into a paste.
I have not had this problem before.
What substances have I encountered?