Forums
New posts
Search forums
What's new
New posts
Latest activity
Members
Registered members
Current visitors
Charts
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Gold Prospecting
Do It Yourself (DIY) Projects
My Furnace Project
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Help Support Prospecting Australia:
This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Message
<blockquote data-quote="thedigger" data-source="post: 106850" data-attributes="member: 2037"><p>Hi Lee</p><p> This youtube video will help you in building your furnace,go to 27 minute mark,has some imfo</p><p><a href="http://www.youtube.com/watch?v=WWVVSZP3Au4" target="_blank">http://www.youtube.com/watch?v=WWVVSZP3Au4</a></p><p>In your post you stated " some methods recommend adding a few bits of quartz or glass to the flux to get right fluid mixture"</p><p></p><p>What they did in the old days was to used glass and borax,the glass was to get the soda ash,which helped clean the gold.If you look around some off the old mines you will come across what looks like melted glass,some will different colours,this the remains of the flux used in the gold melting .</p><p>I use a salamanderclay/graphite crucible,will take high temp and will not crumble as graphite will.</p><p>In regards to refining,this can be tricky,need a vacum pump to filter the silver,and also all the chemicals need to be analytical grade,along with killing all the nitric acid before you add the sodium bisulfite.</p><p>The oven I use is electric and I have to get to 1300c to make sure that I can pour the pure gold</p><p>I hope this helps,so any questions feel free.</p><p></p><p>Regards </p><p>The Digger</p></blockquote><p></p>
[QUOTE="thedigger, post: 106850, member: 2037"] Hi Lee This youtube video will help you in building your furnace,go to 27 minute mark,has some imfo [url]http://www.youtube.com/watch?v=WWVVSZP3Au4[/url] In your post you stated " some methods recommend adding a few bits of quartz or glass to the flux to get right fluid mixture" What they did in the old days was to used glass and borax,the glass was to get the soda ash,which helped clean the gold.If you look around some off the old mines you will come across what looks like melted glass,some will different colours,this the remains of the flux used in the gold melting . I use a salamanderclay/graphite crucible,will take high temp and will not crumble as graphite will. In regards to refining,this can be tricky,need a vacum pump to filter the silver,and also all the chemicals need to be analytical grade,along with killing all the nitric acid before you add the sodium bisulfite. The oven I use is electric and I have to get to 1300c to make sure that I can pour the pure gold I hope this helps,so any questions feel free. Regards The Digger [/QUOTE]
Verification
Post reply
Gold Prospecting
Do It Yourself (DIY) Projects
My Furnace Project
Top