Regulatory Filings • Jun 20, 2014
Regulatory Filings
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NMG: Nickel Mountain Group successfully completes first round of optimisation tests for Rönnbäcken Nickel Project
Nickel Mountain Group AB (publ) (OSE: NMG) is pleased to provide the
following update on the results of the first 8 flotation tests for
process optimisation.
Highlights:
· The tests indicate that costs can be reduced by flotation at natural
pH for most of the process stages; this represents a significant
reduction in processing costs.
· Two stage milling and flotation has been demonstrated to improve
flotation selectivity by 2.9 times compared to one stage milling as used
in previous tests.
· The generation of a 30%Ni concentrate grade from the primary
mill/float stage is feasible. This allows the secondary mill/float stage
the latitude and flexibility to be optimised entirely for the character
of feed it is receiving.
By using natural pH in rougher flotation and in the first stages of
cleaner flotation significant cost savings can be achieved compared to
previous estimations. The use of natural pH in flotation also has
significant environmental benefits as it reduces the amount of chemicals
in the flotation process and hence the requirements associated with
transportation and storage.
From a processing perspective the introduction of an intermediary
flotation step to treat primary mill product in a production plant
environment will allow better control of gangue and magnesium-bearing
minerals.
In a production plant a two-stage milling circuit will be used to obtain
the fine grind required of 80%-50?m. For convenience, laboratory test
work to date has used a single stage mill. This is known to be
inefficient when grinding to less than 75µm and it was suspected that
gangue and magnesium-bearing host rock were being overground and thereby
significantly raising their floatability - a situation which may not be
realistic on a production scale.
Test work showed this to be the case. Relative to one-stage grinding to
80%-50?m, primary grinding to 50%-75?m reduces gangue and magnesium
floatability and improves nickel selectivity by 2.9 times. In turn, this
aids the control of gangue and magnesium-bearing host rock in the
secondary mill/float stage.
For and on behalf of the Board of Directors of Nickel Mountain Group AB:
Torbjörn Ranta
Managing Director
For information, please contact:
Torbjörn Ranta
Managing Director
Tel: +46 8 402 28 00
Mobile: +46 708 855504
E-mail: [email protected]
Or contact:
Erlend Dunér Henriksen
Deputy board member
Mobile: +47 920 18 950
E-mail: [email protected]
Cautionary Statement: Statements and assumptions made in this document
with respect to Nickel Mountain Group AB's ("NMG") current plans,
estimates, strategies and beliefs, and other statements that are not
historical facts, are forward-looking statements about the future
performance of NMG. Forward-looking statements include, but are not
limited to, those using words such as "may", "might", "seeks",
"expects", "anticipates", "estimates", "believes", "projects", "plans",
strategy", "forecast" and similar expressions. These statements reflect
management's expectations and assumptions in light of currently
available information. They are subject to a number of risks and
uncertainties, including, but not limited to, (i) changes in the
economic, regulatory and political environments in the countries where
NMG operates; (ii) changes relating to the geological information
available in respect of the various projects undertaken; (iii) NMG's
continued ability to secure enough financing to carry on its operations
as a going concern; (iv) the success of its potential joint ventures and
alliances, if any; (v) metal prices, particularly as regards nickel. In
the light of the many risks and uncertainties surrounding any mineral
project at an early stage of its development, the actual results could
differ materially from those presented and forecast in this document.
NMG assumes no unconditional obligation to immediately update any such
statements and/or forecasts.
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