Being that copper is highly electrically conductive, I know that demand will stay high and even grow. We live in an electronic world and so mining will not cease, therefore, the focus should be on how to safely extract and process the element.
Copper is an element and cannot be broken down into parts. The chemical symbol for copper is Cu. It is a naturally occurring transition metal.
Copper is widely distributed throughout the world. The Andean Mountains in Chile hold the majority with the USA coming in second. These countries are the largest producers.
Chile . . . . . . . . . . . . . . . . . . . . . . 2,350,000
United States of America. . . . . . 1,890,000
Canada. . . . . . . . . . . . . . . . . . . . . 740,000
Russia. . . . . . . . . . . . . . . . . . . . . .600,000
Indonesia . . . . . . . . . . . . . . . . . . .380,000
Australia . . . . . . . . . . . . . . . . . . . 420,000
Peru. . . . . . . . . . . . . . . . . . . . . . . 400,000
China . . . . . . . . . . . . . . . . . . . . . .350,000
Zambia. . . . . . . . . . . . . . . . . . . . . .350,000
Poland. . . . . . . . . . . . . . . . . . . . . .340,000
Kazakstan . . . . . . . . . . . . . . . . . . .220,000
Philippines . . . . . . . . . . . . . . . . . . .115,000
Zaire . . . . . . . . . . . . . . . . . . . . . . . 40,000
Other Countries . . . . . . . . . . . . . .1,600,000
WORLD TOTAL-----------------------> 9,800,000
Copper is extracted from the Earth through a mining process called strip mining or open pit mining. Copper comes in a form of rock that contains many other types of rock called waste rock. This waste rock must be removed or separated from the copper in order for it to be usable. Copper is separated from the waste materials through a process called roasting in air. This process super heats the copper and other materials and allows the waste to be removed.
- Chemical releases on water
- Noise pollution (from explosions and heavy machinery)
- Dust emissions
- Detriment of rural scenery
- Sinking of land
- Scarcity of water
- Prevention of agriculture and tourist development
- Waste
- Heavy metal contamination
- Overuse of electric power and water
PROCESSED/CONCENTRATED
First it is crushed by cone crushers, then ground even smaller in a mill, and lastly it is mixed with various chemical reagents which coat and separate the copper from the ore. Copper is frothed to the top of the mixture. It is then smelted to remove iron and sulfur and continues on to go through fire and then electro refining processes.
WASTES
The recovery of sulfuric acid from the copper smelting process not only provides a profitable byproduct, but also significantly reduces the air pollution caused by the furnace exhaust. Gold, silver, and other precious metals are also important byproducts.
Waste products include the overburden from the mining operation, the tailings from the concentrating operation, and the slag from the smelting operation. This waste may contain significant concentrations of arsenic, lead, and other chemicals, which pose a potential health hazard to the surrounding area. In the United States, the Environmental Protection Agency (EPA) regulates the storage of such wastes and the remediation of the area once mining and processing operations have ceased. The sheer volume of the material involved—in some cases, billions of tons of waste—makes this a formidable task, but it also presents some potentially profitable opportunities to recover the useable materials contained in this waste.
USES
HIGH ELECTRICAL CONDUCTIVITY!
Presently, copper is used in building construction, power generation and transmission, electronic product manufacturing, and the production of industrial machinery and transportation vehicles. Copper wiring and plumbing are integral to the appliances, heating and cooling systems, and telecommunications links used every day in homes and businesses. Copper is an essential component in the motors, wiring, radiators, connectors, brakes, and bearings used in cars and trucks. The average car contains 1.5 kilometers (0.9 mile) of copper wire, and the total amount of copper ranges from 20 kilograms (44 pounds) in small cars to 45 kilograms (99 pounds) in luxury and hybrid vehicles.
HIGH DEMAND. RECYCLABLE AND REUSABLE!!!
JoAnna, maybe you can add to your blog so that it includes the info you looked up (more informational) and also some links to photos and websites that show some copper mining issues. Based on what is included in the blog, you don't really show off the research about the mineral that was part of the assignment, and it doesn't really highlight any human interaction with the environment. This is a learning experience, so for featured bloggers especially, you should showcase what you learn. You can add to this blog to make it more complete, and since you were sick the day we went over this assignment, maybe the rest of class can give you some ideas of what to add. Jenny
ReplyDeleteHey Joanna!
ReplyDeleteI'm looking forward to seeing what else you end up finding out about copper!
My Dad works construction and so I definitely agree with you that people steal copper and sell it for money and that it will probably continue to be a highly demanded resource for a while yet. Some things that might help you get some more information would be to look up how long our estimated copper reserves are projected to last for and exactly how it goes from being extracted from the ground to being the wire that we find in our electrical systems in houses. Hopefully that helps a little!
-Callia
This looks much more complete - nice work, JoAnna!
ReplyDelete