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Second Zijin mine spill in China hits export hub

Wed, 21 Jul 2010 07:04:53 +0000

Second Zijin mine spill in China hits export hub
Toxic waste from a copper mine spill has been washed downriver into Guangdong province China’s main export hub as scrutiny intensifies of the embattled mining company’s links to local government officials.

Best place to mine copper in wow for beginners?

Tue, 16 Mar 2010 04:05:51 +0000

i am getting wow for christmas and i am going to be a dwarf hunter. I am going to have mining and blacksmith for professions and i want to know if you have any good places for me to start mining when i am a low level. any advice is appreciated.

How can i arrange a visit to Chuquicamata Copper mine in Chile?

Thu, 24 Dec 2009 15:16:25 +0000

Toby at the Copper Mine

Mon, 21 Dec 2009 01:27:30 +0000

another Trackmaster set

who was in charge when China pulled off the Copper mine concession in Afganastan?

Sun, 20 Dec 2009 01:34:28 +0000

I guess they really don’t want us there.

Utah Copper mine 1952

Sat, 19 Dec 2009 01:34:24 +0000

This is a short clip of a Utah copper mine during 1952.

Highland Valley Copper Mine Tour

Fri, 18 Dec 2009 01:27:16 +0000

This video is from a field trip to the Highland Valley Copper Mine in South Eastern British Columbia in Canada

Is the waste from extracting further copper /molybdenum from mine tailings environmentally safer than inputs?

Thu, 17 Dec 2009 01:28:00 +0000

I am an investor in Amerigo Resources, a company that has a plant in Chile to extract more copper and also molybdenum from old and fresh mine tailings (from Coldeco’s El Teniente mine). They have a consultant studying laundering the waste product by a pipeline from the extraction (which involves crushing) process back into a swampy area (the Colihues) where the old tailings are stored. Apparently, the redeposited material would have the quartz removed and be more granular (crushed).

Is there a net environmental problem or benefit from this kind of recycling from and back into the Colihues tailings dam? What are the consequences of replacing the old (and some new) tailings in the Colihues with the original tailings pulled out of there with the processed tailings in more granular form after pulling out more copper and also moly?

The Chilean government is very vigilant these days about anything from mining that might pollute the environment.
I’m not sure if the main mining company, Coldeco, is using the leach-solvent extraction-electrowinning process or, SX/EW Process for their primary extraction. Amerigo Resources does a second pass on old mine tailings, which were perhaps created in the Colihues tailings dam over 20 years ago. I know that they grind those old tailings in a low-tech kind of operation.

They want to pull the old tailings out of the Colihues tailings dam, process them to extract further copper (and molybdenum), and then put what is left from their operation back into the same Colihues tailings dam. But, Coldeco (owned by the Chilean government) won’t allow this kind of recycling yet, until they are sure that a pollution problem is not created.

Do you know why laundering the waste product from Amerigo’s operations would result in pollution, meaning, I think, pollution of the Colihues tailings dam, to which most of the materials would be returned after processing?

Abandoned mine buildings from the Anaconda Copper Mining Company on the flanks of Mount Ophir, CA – darwin19

Wed, 16 Dec 2009 03:08:14 +0000

Image taken on 2007-10-20 15:35:55 by mlhradio.

Copper mining and sulfuric acid plant, Copperhill], Tenn. (LOC)

Tue, 15 Dec 2009 01:37:33 +0000

Image taken on 1940-01-01 00:00:00 by The Library of Congress.