Hi All,
I collected 30kg of dore from mining (composition is 30% Au, 30% Ag, 3% Ir, 17% Cu, 15 % Pb, and 5% other base metal such as Fe, Zn, Ni)
I melted the dore with borax and a lot of slag is produced as you can see from image attached.
Then i proceed to skim the slag, but after many skimming, the slag did not seem to disappear..
It keep re-appearing over and over again...
So i wonder if there's a more efficient method ?
Currently i melt the dore using only borax.
I'm also wondering if i need to use any other flux? and if so, what flux do i need to use?
I collected 30kg of dore from mining (composition is 30% Au, 30% Ag, 3% Ir, 17% Cu, 15 % Pb, and 5% other base metal such as Fe, Zn, Ni)
I melted the dore with borax and a lot of slag is produced as you can see from image attached.
Then i proceed to skim the slag, but after many skimming, the slag did not seem to disappear..
It keep re-appearing over and over again...
So i wonder if there's a more efficient method ?
Currently i melt the dore using only borax.
I'm also wondering if i need to use any other flux? and if so, what flux do i need to use?