Petaquilla Minerals Ltd. (fka PTQMF)

[mjkiii]

Heap leaching in Spain 500 yrs.

"Heap leaching had become a fairly sophisticated practice at least 500 years ago. GeorgiusAgricola, in his book De Re Metallica (publ. 1557)illustrates a heap leach with a 40-day leach cycle, which could pass in many ways for a modern heap leach. The Agricola heap leach recovered aluminum (actually alum) for use in the cloth dying industry. Copper heap and dump leaches in southern Spain were common by about 1700. Gold and silver heap leaching began with the first Cortez heap leach in 1669. While many projects have come and gone, Cortez is still going - their new 63,000 tonne/day South Area leach is...started up in 2002."

Here is a good place to get up to date right close by in Vancouver:

HEAP LEACH 2013 – First International Heap Leach Conference

September 23, 2013 - September 25, 2013 in Vancouver, Canada

Marriott Pinnacle Hotel

Heap Leach 2013 is a comprehensive conference that will bring a range of professionals together to present new research insights and share leading practices on heap leach projects. This conference will include the planning, design, operations, closure, and research aspects of heap leaching. Conference sessions will include presentations related to gold/silver, copper and nickel heap leaching.

Updates on abstract submission coming soon! For more information and updates visit us at www.heapleach2013.com or contact us at [e-mail]

Contact Information

InfoMine Mining Intelligence and Technology

Olga Cherepanova, Conference Manager
Suite 900, 580 Hornby Street
Canada, Vancouver

Phone: [phone] Ext. 312

Fax: [phone]

Email: [e-mail]

http://www.infomine.com

Copyright © 1990 - 2013 InfoMine Inc. Developed and maintained by InfoMine Inc. All rights reserved.