Safety first

Dear Readers

As is generally known, gold has a very high non-material and material value. The extraction of this precious metal is relatively costly, particularly as the deposits are often not very productive. However, there is a cost-effective process - heap leaching - that can be used even in deposits poor in metals to extract gold and other metals profitably. At present the attention is focused on the newly developed BioHeap process. You can read more about this in the article “Renaissance of heap leaching for valuable metals” by Dr. Joachim Harder (p. 54-69). In addition to market trends and technologies, Dr. Harder describes in the usual profound way the safety standards and economic backgrounds illustrated by examples from selected projects.


The report “Skako Vibration modernizes coarse and wet screening plant” (p. 27-33) as well as various application reports in our section Focus Industry (p. 34-46) deal with the topic of how increased safety standards, in addition to efficiency and increased performance, can be achieved by retrofitting or replacement and streamlining.


You will find these and many other topics in our current issue.


Related articles:

Issue 2015-06

Giant leap in copper leaching technology

The top ore layer of an open pit copper mine is easily processed using heap leach in tandem with solvent extraction and electrowinning to produce copper cathodes. The copper mineral most predominate...


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Issue 2011-05

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Renaissance of heap leaching for valuable metals

1?Introduction Heap leaching is the term used for hydrometallurgical extraction processes in which crushed and ground ore is heaped up and then sprayed with an aqueous chemical solution in order to...

Issue 2013-07-08

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Following the World Gold Conferences held biannually in Calgary, Cairns, Johannesburg and Montreal since 2005, World Gold 2013 will be held in ­Brisbane, Australia, with the theme Challenges in Gold...

Issue 2011-01-02

A new start!

Dear Readers, The economic mood is going up, there are New Year’s resolutions and certainly many interesting, exciting and challenging projects are ahead of many of our readers. As the editorial...