Gold recovery from mixed pins vith Acid-Peroxide metod, process and yield of wirewrap pins, and how much gold is in 100 Grams
There are many ways to recover gold from pins.All methods will be shared with you.This method is very easy.Medium size pins can be applied.You won't need to remove plastic from gold plated pins.I like this method.Different gold plated pins have different amounts of gold.The result was satisfying even though I did not use high-grade pins.If you don't understand any step, I will try to explain the complete procedure.You can ask me anything.Let's see which items you need.
If you are new to this, you should learn about gold recovery chemicals and recovery equipment first.
The pins have to be weighed first.The pot should be bigger.The pins need a pot of 20 liters.The pins are in five litters of hydrochloric acid or muriatic acid.Add a liter of water.nitric acid can be used for gold plated pins.It's a good idea to add 200 liters of nitric acid every time.When the reaction is over, add more nitric acid.The solution should be green.Leave it for cool when all metals are dissolved.
The solution should be Filtered after it cools down.You can use both fabric and paper.Adding a little bit of sulfuric acid to the solution will extract any silver or lead.Leave for an hour.
It is time to gold precipitation after one hour.First, oxidize nitric acid for gold precipitation.Put urea in until reaction.When the urea reaction ends.Correctly mix solution.
It is a good option for gold precipitation.It will take 2 to 5 gram of gold precipitation.Add SMB to the solution by mixing it with water.Add water to the solution.On the next day, gold dust will settle.There is gold dust on the solution.You don't need to worry about the gold dust.Water should be used to wash gold dust.The purity of gold will be affected if you don't.Store solution for copper recovery after the filter.
I use a very simple method for the second option.The gold dust can be dried by burning the filter paper.Gold dust can be dissolved in aqua regia.Leave it for two hours and then use a gold solution.Use it for gold precipitation.It's best to leave it for gold and then melt it.
Thank you for the article and video, hopefully you can make a video of refining gold from old coin as well.
How can I recover copper from this A/R solution?How to remove lead and tin from gold plated pins?
If you have a video for recovery copper, please send it to me, I don't know about this.
If you had a pound of gold pins and no plastic, how much gold would you be able to recover?
You can't find a learning video on this website, but you can learn to people free and easy.
Is there a way to safely dispose of waste acid after refining gold?This would be useful.Thank you.