Prominent Methods for Scrap Metal Recycling

For a business to be profitable, it is essential to know the precise chemical composition of scrap, including impurities and dangerous substances.

FREMONT, CA: Recyclers of scrap metal rely on cutting-edge technologies for precise sorting. The precise chemical composition of scrap, including the presence of impurities or dangerous substances, must be identified to assure the quality of scrap delivered to purchasers, the business's integrity, personnel safety, regulatory compliance, and profitability. Examine each layer separately, as there may be embedded lead or copper-containing electronic components. It is essential for obtaining reliable readings while sorting and analyzing metals.

Grind it clean: Keeping an eye out for coatings, platings, and paint residue is necessary. The handheld X-ray fluorescence (XRF) analyzer may identify this pure Ni if the coating is not removed from the Ni-coated Fe. Paint can also interfere with chemistry and lead to the misidentification of an alloy. Corrosion, oxide coatings (rust), and scale can interfere with accurate readings of metals, especially those exposed to the elements; be cautious about removing them.

Make it into a powder: In the United States, the amount of recoverable Platinum (Pt), Palladium (Pd), and Rhodium (Rh) in each catalytic converter can range from 1-2 grams in small cars to 12-15 grams in large trucks. There is a distinct advantage to rapidly and correctly determining the Pt, Pd, and Rh content of used catalytic converters at the collector's site or in the refineries to avoid significant financial losses.

Take more extensive measurements to distinguish close alloys: Both alloys with remarkably similar specs can be displayed as a close match. In rare instances, a lengthier reading (5 to 10 seconds) may give the requisite precision for separation.

Be careful of the fragile XRF window: Using Caution with The Fragile XRF Window Small turnings have been one of the most annoying components for many portable analyzer users, as their sharp edges have shattered numerous fragile XRF windows, necessitating expensive repairs. Powders may adhere to the measuring window and contribute to subsequent measurements. Even welding fumes can land on the window and skew measurements of metal content.

Take a course on radiation safety: When the tube is activated (tube-based instrument), or the shutter is open, the analyzer releases a directed radiation beam (isotope-based instrument). Radiation exposures should maintain as far below dosage limits as possible. While the radiation emitted by a handheld XRF analyzer is comparable to that emitted by a standard medical or dental X-ray, care must be taken to direct the device only at the sample and never at a person or body part. (See XRF Safety instruction.)