Alexander Mining PLC Patent Granted for Leaching of Copper & Molybdenum (0005R)
June 24 2015 - 2:00AM
UK Regulatory
TIDMAXM
RNS Number : 0005R
Alexander Mining PLC
24 June 2015
24 June 2015
Alexander Mining plc
('Alexander' or the 'Company')
Patent Granted in USA for a Method of Leaching of Copper and
Molybdenum
Alexander is pleased to report that it has received notification
that its MetaLeach Limited ("MetaLeach") subsidiary has been
granted a patent for a Method of Leaching of Copper and Molybdenum
in USA, patent number 9,011,574. This patent forms part of
MetaLeach's family of core AmmLeach(R) technologies and has a
standard term of twenty years from the effective date of 29 August
2011 (being the date of original filing) along with a 111 day
patent term adjustment.
Description
The patent describes a method for leaching copper and molybdenum
from a material, selected from a group consisting of one or more of
an ore, residue, or concentrate containing such, in which more than
1 % w/w of the total molybdenum is present as a sulphide and in
which more than 1% w/w of the total copper is present as an oxide,
the method comprising the steps of: Exposing the ore, residue
and/or concentrate to an aqueous solution of chlorine (l)-based
oxidizing species of a pH of at least 3.0; oxidizing the molybdenum
by the chlorine-based oxidising species thereby providing a treated
material and a reduced aqueous solution of chlorine-based oxidizing
species; leaching the treated ore, residue and/or concentrate by
exposing the treated ore, residue and/or concentrate to an aqueous
ammoniacal ammonium carbonate solution to form a pregnant leach
solution containing both copper and molybdenum; and passing the
pregnant leach solution containing both copper and molybdenum to a
means for metal recovery.
Forward Looking Statements
This news release may contain forward looking statements, being
statements which are not historical facts, including, without
limitation, statements regarding potential mineralization,
exploration results, resource or reserve estimates, anticipated
production or results, sales, revenues, costs, "best-efforts"
financings or discussions of future plans and objectives. There can
be no assurance that such statements will prove accurate. Such
statements are necessarily based upon a number of estimates and
assumptions that are subject to numerous risks and uncertainties
that could cause actual results and future events to differ
materially from those anticipated or projected. Important factors
that could cause actual results to differ materially from the
Company's expectations are in Company documents filed from time to
time with the TSX Venture Exchange and provincial securities
regulators, most of which are available at www.sedar.com. The
Company disclaims any intention or obligation to revise or update
such statements unless required by law.
ENDS
Enquiries
Alexander Mining plc
Martin Rosser Matt Sutcliffe
Chief Executive Officer Executive Chairman
Mobile: +44 (0) 7770 865 341 Mobile: +44 (0) 7887 930 758
Email: mail@alexandermining.com
Website: www.alexandermining.com
Northland Capital Partners Limited
Nominated Adviser and Broker
Tel: +44 (0) 20 7382 1100
Matthew Johnson / Gerry Beaney
(Corporate Finance)
John Howes / Abigail Wayne
(Corporate Broking)
This information is provided by RNS
The company news service from the London Stock Exchange
END
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