Majestic Gold Corp. V.MJS

RE:The Gamma X-Ray Sorting Technology Pays Big Time

[nozzpack]

Here is a real example from another of my gold investments in which Gamma X RAY sorting technology will be used, elevating the head grade by 52 % and reducing processed ore by 40 %.

The Process is described below ....So, applied to SJ , we have 2 m tons currently being processed at 0.62 grams per ton. The processing rate is forecast to increase to 3.3 m tons .

Process Rate     XRAY ?         Grade        Prod Oz)    Prod Gain

2mtpa                    No                0.62           40,000

2mtpa                   Yes                0.94           60,000         20,000

3.3mtpa                 NO                0.62           65000

3.3mta                  Yes                 0.94          100,000       35,000

Not included is higher recovery due to higher grades and lower smelting and transportation costs also due to higher grades.
Estimated capex $10m to $15 m US.

The beneficiation gains using the X RAY sorting technology are obvious....add GPS guidance for excavation and we even more efficient .
Its quite obvious that we can gain much more in annual production ( 35,000 ounces per year ) by investing in new mining technology at the current mines rather than acquiring higher cost U/G mines .
( rough estimate ROI of 100 % : capex payback 1 year
AIMHO

Have a great Weekend

 
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The   ROM feed would go through primary and secondary crushing stages to produce a 50mm minus product. 

A three-deck screening plant would convey the fine fraction (minus 12mm) to the ore storage building and two separate coarse size fractions to two ore sorters operating in parallel.  Sorter No.1 would receive a 12-25mm size fraction and sorter No. 2 would receive the 25-50mm size fraction. 

X-ray transmission (“XRT”) sorting with compressed air would be used to concentrate the ore containing sulphides, separating it from the inert waste rock dilution taken during the mining process. 

The sorting process has been designed to operate without the use of water, relying on X-ray sensing and compressed air to separate the ore from the waste. 

Sorted product material would be conveyed to a final tertiary crushing stage to reduce the product to 12mm minus and stockpiled in the ore storage building. 

Sorted reject material would be stockpiled and back hauled to a storage pile for long term closure.  
On average, a crushing and sorting rejection rate of 40% is expected with gold recovery of 95.0%.