How to recycle metals from scrap circuit boards?

With the continuous development of science and the increasing demand for circuit boards in various fields, the amount of waste circuit boards and scraps generated has increased dramatically. The metals contained in waste circuit boards are mainly copper, aluminum, iron, etc. These metals are very precious and have extremely high recycling value. Reasonable treatment of waste circuit boards can not only effectively reduce the environmental pollution of waste circuit boards, but also achieve efficient recycling of valuable metal resources.

At present, there are three methods for recovering metals from waste circuit boards at home and abroad, namely, pyrolysis, wet treatment and mechanical treatment.

Metal content of 1 ton PCB circuit board

1. Fire Method: Fire Method is to burn waste circuit boards in a high-temperature furnace to remove inorganic components such as resin, and then use electrolysis to recover precious metals. This method will produce a large amount of toxic smoke during the incineration process, polluting the environment and endangering human health.

2. Wet treatment: Wet technology requires the use of a large amount of chemical reagents for metal leaching, which will not produce a large amount of toxic gases, but will produce wastewater pollution, resulting in a large amount of water resources waste.

3.Mechanical treatment: Mechanical treatment technology refers to the use of PCB circuit board recycling machine to treat waste circuit boards. Through dry crushing and physical sorting, metals such as copper, aluminum, and iron are sorted out from waste circuit boards. The circuit board recycling equipment designed by DOING is not only equipped with shredders, crushers, rotary vibrating screens, airflow separators, electrostatic separators and other professional equipment for processing waste circuit boards, but also designed a pulse dust removal system for dust removal. DOING PCB circuit board recycling machine is not only pollution-free to the environment, but also has a metal recovery rate of more than 99%.

PCB circuit board recycling machine

The final products obtained after processing by the PCB circuit board recycling machine are precious metals (90% copper) and resin fiber powder. The separated metals are of high purity and good quality and can be directly sold to the metal trading market, bringing huge economic benefits.

Circuit board products

In general, the most environmentally friendly way to recover metals from waste circuit boards is to use DOING circuit board recycling equipment for processing. Using DOING PCB circuit board recycling machine to process waste circuit boards is not only environmentally friendly, but also has a large processing volume and a high metal recovery rate. It is currently the best way to recover metals from waste circuit boards!