how to get the rid of nitric acid and hcl in the finnal solution before preciptation

[shko]

hi
i need to get the rid of
nitric acid
hcl
in the yellow solution
how to do that ?!
does sulphuric acid can do that ?!

 

[g_axelsson]

Search for denoxing.

http://goldrefiningwiki.com/mediawiki/index.php/Denoxing

Göran