In the first part of this series, we discussed the steps of precious metal refining for industrial-materials and the varying amounts of time it can take to return value to you, the customer. Every month, our team transports precious metal bearing hazardous waste materials from all 50 states. Those materials arrive at our main facility and are then weighed, assigned a lot number and secured. This entire process is recorded via video surveillance for added security.
These materials are then processed into a homogenous form through one of several methods. Once a homogenous form is achieved, samples are taken and assayed to determine the amount and quality of the precious metals contained within the material. With these types of materials, the entire process can take up to 60 days. This might seem like a long time, but it allows us the opportunity to ensure the most value for our customers.
Less Complexity, Quicker Turnaround
For some of our customers, however, the intricate processes that go along with hazardous materials such as electroplating solutions, filters, rugs, and tons of circuit boards really aren’t necessary. We often deal with karat jewelry, dental crowns, and various types of metals including gold, silver, platinum, and palladium. In these cases, melting can still be an option and a small amount can settle in as little as three working days. But there are many types of precious metal-bearing materials that do not lend themselves to melting. For these materials, the various processes we offer can take 20, 30 or up to forty-five working days.
In instances where material is electroplated with gold, the cyanide stripping process is a fast, efficient, cost-effective way of refining.
By immersing the scrap we receive into a stripping solution, we can remove the gold and then assay the solution to determine the ultimate value. This process is so efficient, we can strip up to 10,000 pounds of plated material in a single day.
For material plated with multiple layers, for instance – gold over nickel over a second layer of gold – the cyanide strip method will not get through the layer of nickel. These materials can be placed into our acid digestion kettles where we can reveal all of the layers of precious metals. This method is perfect for removing genuine stones in old scrap jewelry.
Show Me the Money!
Once the refining process is complete, the resulting material has been weighed and the value of the precious metal is determined, there are several methods which we use to return that value to the customer:
- Wire transfer
- Metal transfer to a customer’s supplier
- Products provided by Advanced Chemical such as gold grain or Potassium gold cyanide
- Plating baths
Regardless of which refining method you choose, we guarantee the highest level of security, the quickest turnaround time possible and the most value for your precious metals. Give us a call today to find out which process will best suit your needs.