In the 90’s it was reported that CUS aggregates were used in hot mix asphalt for construction of pavements in the USA. However, it is reported as a rare use of CUS [7]. It is described that non-ferrous slag was used for construction of highways in Germany such as A1 near Hamburg,...
However, only a tiny fraction of these reserves is economically viable with present-day prices and technologies. Estimates of copper reserves available for mining vary from 25 to 60 years, depending on core assumptions such as the growth rate.[32] Recycling is a major source of copper in the ...
The base metal used in stainless steel and electric-vehicle batteries surged more than 250% in two days, briefly hitting $100,000 a ton, as investors and industrial users who had sold nickel scrambled to buy the contracts back after prices rallied. The largest-ever price move on the LME be...
Maybe people would start recycling their old air conditioners and so forth, due to the high prices for copper scrap. At a price of, say, $50 a pound in today's dollars, how much copper scrap would be available? How much would demand decline due to substitution? In other words, we ...
To promote the reduction of socio-environmental risks considering the chemical composition of mine tailings, it is necessary to implement new approaches focused on sustainability, such as applying the principles of reduce, reuse, and recycling to the management of mine tailings. New metallurgical techni...
resources Article Urban Mines of Copper: Size and Potential for Recycling in the EU Luca Ciacci *, Ivano Vassura and Fabrizio Passarini Department of Industrial Chemistry "Toso Montanari", University of Bologna, 40136 Bologna, Italy; ivano.vassura@unibo.it (I.V.); fabrizio.passarini@unibo.it ...
In the past, efforts have been made to protect the catalyst by adding a start-up solvent or using a gas recycling system that sufficiently removes the water from the gas on each cycle [19,20]. An additional route to increasing a catalyst's resistance to water is to add elements that ...