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The '''Albion process''' is an atmospheric leaching process for processing [[zinc]] [[ore concentrate|concentrate]], [[refractory]] [[copper]] and refractory [[gold]].<ref name=one>{{Citation
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  | last = Pease
  | first = Joe
  | title = Complex leaching becomes much simpler
  | newspaper = Australian Mining
  | pages = 26–32
  | year = 2005
  | date = August
  | url = http://www.albionprocess.com/downloads/2005-08-03_AM_AUG05.pdf
  | accessdate = 6/01/2010
}}</ref> The process is important because it is the most cost-effective method currently in use for extracting both the zinc and [[lead]] from concentrates that contain high lead levels (7% or greater). Zinc and lead often occur together and large remaining zinc deposits contain levels of lead that exceed what can be economically extracted through other techniques. The Albion process is not sensitive to the concentration grade and gives favorable recovery with both low grade and dirty concentrates. [[Environmental quality|Environmental]] impact is also claimed<ref>{{Citation
  | title = Albion Process Progress
  | newspaper = Mining Journal
  | page = 324
  | date = 8 November 2002
  | url = http://www.mining-journal.com/production-and-markets/albion-process-progress
}}</ref> to be mitigated using this technology because in contrast to other methods, [[sulfur dioxide]] is not emitted and less energy is consumed over all.
 
==History==
Development of the Albion process started during the early nineties led by [[Mount Isa Mines]]. It was first patented in 1993.<ref name=two>http://www.albionprocess.com/overview.html</ref> Several pilot plant projects were conducted in 1994 and 1995 which tested the feasibility of using the technology to process high arsenic gold and copper ore.<ref name=two/>
 
==Process==
The ore concentrate is first introduced into an [[IsaMill]]. This [[comminution]] step places a high degree of strain on the mineral [[crystal structure|lattice]] and causes an increase in the number of [[grain]] boundary fractures and [[lattice defects]] of several orders of magnitude. The increase in the number of defects within the mineral lattice "activates" the mineral, facilitating leaching. The rate of leaching is also enhanced, due to the increase in the mineral surface area.
 
The oxidative leaching stage is carried out in agitated tanks operating at atmospheric pressure. Oxygen is introduced to the leach slurry to assist the oxidation. Leaching is autothermal, not requiring any external heat. Temperature is controlled by the rate of addition of oxygen, and by the leach slurry density.
 
==Chemistry==
The general reaction for the leaching process is:<br/>
<br/>
<math>MS_2 + \frac{1}{2} O_2 + H_2SO_4 \rightarrow MSO_4 + S^0 + H_2O</math><ref>http://www.albionprocess.com/technology.html</ref>
 
==References==
<references/>
 
{{DEFAULTSORT:Albion Process}}
[[Category:Metallurgical processes]]

Revision as of 03:44, 28 February 2014

These fuzzies may be a small annoyance, but they can make your gym seem unkempt. Macaskill is tackling the Cuillin Ridge in Scotland, not far from where this two-wheeling genius hails from on the Isle of Skye. They both have some parts that are worse than another's, but it doesn't matter in general. Riding position is typically more vertical than that of a road bike. Certain Haro mountain bike models worth mentioning right here consist of BMX Black trail X1, BMX Haro Partial 16, BMX Haro FIC and so forth.

The prices offered by these online stores are very competitive and realistic according to the market. One way to increase exercise fun is to find a friend to run with you. Fitting is logical, the instructions are clear few tools are required. Just to give you an idea, mine has three settings, those being; *Completely off, so that I am riding it as a normal bike; *Power assist, where the power kicks in after a couple of revolutions of the pedals and then remains on as long as the pedals are turning, (there is a high and low setting in this mode). The micro-brewery and pub sits right along the White Pine Trail, a paved rail-trail that runs from Grand Rapids to Cadillac.

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They are usually slightly used and cheaper than a brand new bike. For more information visit: ultimate chopper or email us at chrismartinseo@gmail. Maybe you like to go out; maybe you like to mountain bike. I'd been slowly coming to that conclusion over the course of about a year or so and that mutant nose hair pretty much confirmed it. Scott Motorcycles has been plauged with a popularity of availableness problems on their higher end motorbikes and it looks like 2012 will not be any different.

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