Gold Refining Tutorial Part 1 - Inquarting Scrap 14K Gold Jewelry with Silver

http://www.goldnscrap.com/index.php?option=com_content&view=category&... Part 1 of 4, the full tutorial: "Inquarting Scrap14K Gold Jewelry with Silver and Refining" , this video is vital part of the article attached (see link).

Learn more about scrap gold recovery and refining at my new website:
http://www.goldnscrap.com

Category:

Science & Technology

Tags:

• 14K
• 24K
• Silver
• karat
• gold
• platinum
• refining
• recovery
• inquarting
• purification
• process
• chemicals
• nitric
• acid
• HCL
• hydrochloric
• sulfuric
• sodium
• Metabisolfate
• guide
• tutorial
• how
• to

[SuperJay101010]

Good video and good job.what are you nine???? When you have advanced aqua regia and electro refining method why did you turn out to that method??because that doesn't dissolve carbon group metals and platinum group metals so I'm sorry if you scrap of gold-copper-palladium than you won't be able to get 999 pure gold.And second even if you have gold-copper-silver alloy scrap you'll get it like 998 or 9985 purity.Never 999 or 9999.No offense i know you don't like my comment.But that's best i can do.

[indeedItdoes]

@SuperJay101010

I haver no problam with you comments, i welcome it and thank you for it.

Inquatring method if done right will easily produce 9995 gold or higher.

Check out the full instructions in the link (in description) and you will see how and why.

Direct AR is also a good way to go, if you know what you are doing. The end results are similar.

Again, i thanks you for your comments.

[jcrockett870]

I teach HS Chemistry and my students have a lab that results in me having lots of AgCl. I simply react the AgCl using NaOH and then reduce it to Silver using dextrose. The first time I did it I was surprised at how easy it was.... Most people say "avoid AgCl like the plague".

[indeedItdoes]

@jcrockett870

AgCl is a great way to refine silver, but only if it is alreay of high purity.

Main problem with it, is that it tends to trap some of the solution of which it was precipitate.

That not good when you precipitate AgCl from dirty solution.

You can try for your self, add some Cu(NO3)2(aq) to AgNO3(aq) and add HCl.

Then try to wash clean the blue solution until the wash tuens clear... When you finish you will see why refiners don't like it... :)

[jcrockett870]

Do you use inquarting because you do not want the silver chloride from the direct AR method?

[indeedItdoes]

@jcrockett870

With too much base metals and silver, a direct AR may become a bit messy.

A great deal of heat and agitation is needed to achive full dissolution due to the passivation caused by AgCl.

[SuperJay101010]

I used to do it with 2kg gold which you've done which 11 grams.The flaws in this method is investment in silver then again you recover silver.Not totally pure gold.simple is put your 14k;22k;18k jewelery in aqua regia let it dissolve then put feso4 or hydrazine hydrate in solution and after 2 hours you'll 999 gold precipitates

[jcrockett870]

@indeedItdoes Thanks. I had good results with reagent grade chemicals. However, I never started with scrap.

[indeedItdoes]

@Bluestreak2040

Something is wrong with your math.

Your end goal is that the gold will occupy 25% of the alloy's mass, the rest of the alloy can be any other metal that will dissolve easily in nitric acid.

Silver is the least demanding in terms of nitric acid consumption, therefore recommended.

Sterling could be used as well.

Check out the full article (see link in description) and the "inquarting caclculator" on my website for more info.

[Bluestreak2040]

I have been buying 14k below spot for several months now. If I had 58 grams of 14k then is would stand to reason by the ratio that you have provided, that 174 grams of .999 correct? Can sterling be substituted in the same ratio or must is be a different ratio for inquarting with sterling? The end result being refining to 24k and sterling to .999 by electrolysis.

Would you recommend melting smaller quantities?

The music is fine, don't change it or listen to any whiners with poor taste.