o c t o b e r / n o v e m b e r 2 0 1 6
www.resourceworld.com
55
tried processes for the extraction of gold
into solution. Numerous other chemicals
besides cyanide have been tested to leach
gold, and include sodium thiosulfate,
thiocyanate, ammonia, bromine, chlorine,
bisulfides, and thiourea and others, but
almost all processes still involve the use of
highly toxic chemicals, dangerous oper-
ating environments, high temperatures,
limited applicability and are not used for
economic or technical reasons. No one has
come up with cost-effective method other
than leaching with cyanide until now."
HM X-leach, says Nelson, "offers a cost
effective alternative to cyanide for ores,
tailings, flotation concentrates and grav-
ity concentrates." A key point in X-leach's
favour is, according to Nelson, "...many
mining projects that have been unable to
secure operating permits for a cyanide
based extraction process may very well
proceed with the use of the HM X-leach
product."
"To our mind, apart from additional
testing in the field, which is planned
shortly, we feel the X-leach is near ready
for commercialization, which is why
we have applied for patents for the pro-
cess and formula on the X-leach," stated
Nelson.
Nelson told Resource World, "We will
always be looking for new innovative
means to develop technologies for the
mining sector, however at this time,
we have three patent-pending tech-
nologies, HM X-tract, HM X-mill and
HM X-leach that we are fully involved
with."
n
James Wie, completing independent analysis of the HM X-leach at the Met-Solve Laboratories
in Langley, British Columbia. photo courtesy of mineworx.
"HM X-leach is a more
effective, safer and
faster alternative to the
standard toxic cyanide
leaching which
currently dominates the
industry"
said Duane Nelson
