Aluminum, recycling

See also Alumina hydroxides classification, 2 422 Aluminum particle size, 10 22-23 Aluminum perchlorate, 18 278 Aluminum phosphide, 2 284 19 58 Aluminum-polyphenylenevinylene-ITO, in photovoltaic devices, 22 221 Aluminum production, 9 639-640 Aluminum recycling, 2 305 21 371-372 economic aspects of, 21 402 remelting, 2 333-334 Aluminum reduction, of ferrovanadium, 25 518... 

Fig. 2. Recycling of aluminum beverage cans and other scrap saves nearly 95% of the energy required when producing the virgin metal from ore. Approximately 50% of the metal processed in 1990 was recycled from scrap. (Reynolds Aluminum Recycling Company)...

What Has This to Do with (Box 14.1)... The Environment Aluminum Recycling 674... 

Facts About Aluminum Recycling. Earth 911 Web Site. Available online. URL http //www.earth911.org/master. asp s=lib a=aluminum/facts.asp. Accessed November 19, 2006. 

Presently, the proportion of aluminum recycled in Germany is about 35%. Recycling spares the valuable raw material sources and saves up to 95 % of the energy... 

The Hall-Heroult process uses huge amounts of electric energy. For this reason, aluminum often is produced in plants built close to large hydroelectric power stations, where electric energy is abundant and less expensive. The vast amount of electricity needed to produce aluminum from ore is the prime reason that it is especially important to recycle aluminum. Recycled aluminum already has undergone electrolysis, so the only energy required to make it usable again is the heat used to melt it in a furnace. 

Aluminum is one of the success stories of recycling. The major fact in aluminum recycling is that approximately 95 percent of the energy needed to produce virgin aluminum is saved and 97% less water pollution is created by using reclaimed aluminum rather than producing new metal from ore. ... 

Air Liquide, in collaboration with Physical Sciences Inc., developed a TDL instrument for temperature and species concentration measurements in heavy industrial applications. This work, sponsored by the U.S. Department of Energy (DoE), was performed befween 2000 and 2006, and involved (1) fhe development of a protofype insfrument, (2) validation tests in a small-scale Air Liquide furnace, and (3) field fesfs in three separate industrial facilities. The three industrial facilities were (1) a steel reheat furnace, (2) a reverberatory aluminum recycling furnace, and (3) an EAF. Documentation on this project is provided in a publicly available final report (Von Drasek et al. 2006). 

Green JAS (2007) Aluminum recycling and processing for energy conservation and sustainability. ASM International, p 147... 

Use the web to determine the differences in the amounts of aluminum recycled in states where there are def)Osits on aluminum cans versus states where recycling is voluntary. What is the most reliable way to estimate this value What uncertainty is there in the estimate ... 

Aluminum Recycling and Processing for Energy Conservation and Sustainability. Edited by J.A.S. Green. AMS International (2007). 

The aluminum metal produced in this process is 99.5% pure. The Hall-Heroult process made the production of aluminum economically feasible. However, this process is the largest single user of electrical energy in the United States—nearly 5% of the national total. Recycling aluminum saves almost 95% of the cost of production. Aluminum recycling is one of the most economically worthwhile recycling programs that has been developed. 

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