What Happens to Metals Extracted from Waste Circuit Boards?

Printed circuit boards (PCBs) are everywhere — in computers, phones, TVs, and countless electronic devices. But when they reach the end of their life, they become e-waste.

The good news? Waste PCBs are rich in valuable metals, including gold, copper, silver, and palladium. These metals can be recovered through specialized recycling equipment.

But what happens next?

Let’s explore what becomes of these metals after they’re extracted — and how they re-enter the economy.

What’s Inside a Waste Circuit Board?

Typical PCBs contain:

After dismantling, crushing, and separating, these metals are extracted in fine form and sent for refining.

Where Do These Metals Go?

Copper

Electrical wiring & cables

New circuit boards

Plumbing systems

Alloy production (e.g., brass)

Copper is 100% recyclable without loss in quality, making it highly valuable in the green economy.

Gold

Electronic connectors & contacts in high-end devices

Medical electronics & aerospace components

Jewelry after refining

Investment-grade bullion

Gold recovered from PCBs is purified through electrorefining or aqua regia leaching.

Silver

Solar panels and battery contacts

Conductive inks & RFID chips

Photography chemicals (in some countries)

Jewelry & tableware

Palladium

Catalytic converters in vehicles

Hard disk drives & multilayer ceramic capacitors

Advanced electronics (military, medical, aerospace)

Why Recycled Metals Matter

Reduces need for mining, which is energy-intensive and polluting

Lowers carbon emissions

Supports circular economy

Generates profit from recovered precious metals

In fact, 1 ton of e-waste yields more gold than 1 ton of gold ore — making PCB recycling not just sustainable, but highly valuable.

At Gomine, we supply high-efficiency PCB Recycling Machines that:

✅ Separate copper, resin powder, and fiberglass

✅ Use electrostatic separation and air flow for high purity

✅ Feature dust collection systems for environmental safety

✅ Can handle computer boards, phone boards, TV PCBs, and more