What Valuable Items Are Inside the Exhaust Pipe of a Scrapped Car?

[HZoe]

In the exhaust pipe of a scrapped car, the three-way catalytic converter can be recycled to extract precious metals such as platinum, rhodium, and palladium. Introduction to the Three-Way Catalytic Converter: The core component of the three-way catalytic converter is a porous ceramic material installed in a specially designed exhaust pipe. It is called a 'carrier' because it does not participate in the catalytic reaction itself; instead, it is coated with a layer of precious metals like platinum, rhodium, and palladium. The Extraction Process of the Three-Way Catalytic Converter: The metal casing must first be removed, typically using large hydraulic alligator shears or other tools. The material is then processed on a production line for sorting (many impurities need to be removed). This is followed by crushing, adding various chemical agents, and undergoing high-temperature steps to extract the precious metals. Due to the technical expertise required for extraction, beginners are advised to start with recycling and refurbishing.