Hi,
There was many other reactions on the web describing how to make WPG from minerals,dirt crust or salts-example Dead Sea salt boiling with NaOH ect. Imagine boiling salt or mineral with strong NaOH solution for several hours in Pyrex,surely you will have NaOH reacted with glass, the same goes with stainless steel pot.Plus,You don't know what else stays in your final product since there are so many other elements in the powder You start with.
Generally people assumed that obtaining white colloid gives WPG-that is incorrect, many compounds could give colloid when changing pH of the solution.
And there was to many chemicals and chemical reactions with such salts or minerals would give that-for me those methods I don't trust.You could have unspecified and contaminated result.
Simple is the best!
That is why I focused only on Sodium Burn.
There was an individual who was trying to do this method,if I remember good it was Essene.But he was doing this in so bad and twisted way that process was contaminated from the wery beginning.
If You have Gold metal and Sodium metal and find the way to fuse and water wet them after together in a way preventing any other reactions contaminating your process surely you will have a good result.
This method is very difficult and dangerous and the main trick is as I described before.
As I remember David Hudson in one of the interwiews asked about this method said thai it is very interesting and could give a good result,I don't remenber now but if I will have time I will find and post it here (I must dig deep in my old computer memory,it was so long time ago). If You check David patented methods they are very sophisticated because he reacts dirt crust and must get rid off many unwanted compounds.
Persnally I don't know burning sat method You described.It could be something on it,there are so many paths...
But I am simple man and I like simple solutions, that is why I do prefer stay on the ground I know.And that is Sodium Burn method.
Regards,
pix

And another, interesting article:
http://www.zptech.net/alchemy.html
As You see they  mention Sodium metal plays important role in gold processing into monoatomic.They also mention difficulty with that method so they implemented their own,less energetic.I don't know for sure what is this method but I have my guess.
I think they are up to something.Seems like they know where the problem lies and how to get a juice
Regards,
pix