While steel and iron are easy to separate from scrap piles using magnets, other metals such as titanium, copper and aluminum are harder to sort. But scientists and researchers have come to the rescue, developing new techniques for sorting solids and liquids and cutting the time and cost involved in separating scrap materials.
University makes machine to accurately sort light metals.
To help keep unsorted metals out of landfills, researchers at the University of Utah have developed a mechanical metals separator that’s accurate and cost-effective.
Every metal has a reaction to a strong magnetic force, generating a magnetic current unique to the metal. These frequencies have the energy to move metal pieces. By tweaking a magnet, researchers can get different metals to move in graduated amounts, causing each metal to fall into its correct bin.
The setup requires only a large magnet and a frequency controller, meaning it’s cheap enough that most scrap yards will recoup the cost of the unit within a year. So far, however, the technology only works with small pellets. But it’s a great breakthrough in sorting lighter metals.
Scientists use two-step process to extract rare-earth metals.
There are numerous rare-earth metals that can be recycled from old computers, phones and other electronic equipment. The problem is, there’s no simple, cheap way to remove and sort these materials from electronic waste.
Scientists at the Critical Materials Institute, part of the US Department of Energy’s Ames Laboratory, have created a two-step process for extracting the valuable metals.
The first step involves melting the scrap with magnesium. Lighter rare-earth metals are drawn to the magnesium and are later recovered from it.
The second step involves melting the material with another substance to extract the heavier metals. The process should lead to faster, more economical recovery and recycling of rare-earth metals.
Scrap metal compactor helps machine shops separate fluids.
Machine shops generate a lot of metal waste, from turnings to chips. Some of these trimmed metal pieces or worn components may be coated with oils, coolants or cutting fluids.
Cleaning the fluids from metal waste makes recycling it easier, but there’s also a cost savings in recycling the fluids.
One new machine separates these fluids from the metal while also compacting metals for transport. Machine shops can fill them up and have the waste transported to the scrap yard, knowing they’re being environmentally friendly by recycling the fluids as well.
It’s good to know that scientists and researchers are constantly learning and discovering new ways to help us sort metals and keep them out of our landfills and waterways. The future holds a lot of promise for green, sustainable metal scrapping.
For more information, contact Get Green Recycling Co. or a similar company.Read More