Non-Chemical dry chlorine extraction

[arthur kierski]

what it is and how dry chlorine extraction works ---for gold and pgm ?

 

[Barren Realms 007]

You can use dry chlorine in place of clorox with HCL.

 

[Platdigger]

I think Arthur may be refering to using chorine gas without added water or acid...right Arthur?

 

[Harold_V]

I think Arthur may be refering to using chorine gas without added water or acid...right Arthur?

Most likely correct. I recall reading of that type of operation. Chlorine gas is introduced to a chamber filled with gold ore, where it dissolves gold. It is then rinsed out with water to recover the values. It does not recover silver, however.

Harold

 

[arthur kierski]

Harold and Platdigger are correct---it is about the cl2 gas passing thru the ore (in this case , over electronics components in powdered form)

 

[lazersteve]

One of my books states that chlorine gas reacts with gold at 200-250C. As a side note bromine reacts with gold at room temperature. :!:

I was researching a more direct route to extrating the gold from escrap when I found this out.

I'm sure Lou would know more details.

Steve

 

[Barren Realms 007]

One of my books states that chlorine gas reacts with gold at 200-250C. As a side note bromine reacts with gold at room temperature. :!:

I was researching a more direct route to extrating the gold from escrap when I found this out.

I'm sure Lou would know more details.

Steve

Bromine gas is some very serious stuff, we wore full resperators around it.

 

[Anonymous]

This is the plattners process. I use it now for black sand and ground up electronic scrap.
Base metals removed first with dilute hcl soak, then large glass gar (2gallon) pickle gar fill 1/3 with material then pipe in chlorine, I was adding hcl to the material then bleach and sealing with a waxed wood plug and turning on
a roller.

Works good, silver is dissolved out after rinsing out gold with hypo.

there are several google books that you can download for free that cover this process extensively.

jim