"The
man with a new idea is a crank
- until the idea
succeeds."
Mark Twain
There is nothing
new about ionic liquids. Salts that
become liquid at low temperatures were first identified by scientists in the
late 1800s. It was not until the 1970s
that someone thought to try ionic liquids as electrolytes in batteries. Now chemists are hailing these melted salts
as ‘solvents of the future.’ Apparently,
ionic liquids have some attractive characteristics that make them appealing in
industrial situations. They are poor
conductors of electricity, have low combustibility and are thermally
stable.
Privately-held Argo Natural
Resources Ltd. is on a mission to commercialize ionic
liquids for processing metals and for batteries. Based in London and doing business as Argo
Applied Technologies, the company has licensed technology developed at the University of Leicester to produce and apply a type of ionic salts they call ‘Deep
Eutectic Solvents’ or DES for
short.
Argo’s team of
scientists and engineers think DES
will be effective for minerals processing. DES
is able to dissolve metals in higher quantities and lower cost than water-based
systems. Additionally, using non-toxic,
biodegradable salts such as choline chloride is more environmentally-friendly
than current practices that rely on toxic materials such as cyanide,
mercury or hydrochloric acid. Many
classes of chemical reactions can be performed using ionic liquids as solvents.
Gold is the first mineral targeted by
Argo. Certainly, gold is appealing given
ample selling prices for purified gold ore and the ubiquitous nature of gold deposits
around the world. Gold is also often a
by-product of other mining operations.
Unfortunately, only a small portion of such by-products are successfully
recovered and sent to market. Using DES for the beneficiation step more of
the valuable metals in ore concentrate can be recovered, increasing returns for
minerals producers. The DES beneficiation process could be as much as
80 times faster than conventional cyanide processing.
Gold is not the limit. The company has identified
at least another 18 minerals and elements that could be extracted using Argo’s DES technology. Some can be dissolved with a simple oxidizing
agent such as iodine.
Argo has some
work ahead to get to commercial stage. A
batch production plant is planned that can improve upon experience gained in
pilot projects with customers. A
continuous processing plant would be constructed later when there is enough work to
justify larger volumes.
The development agenda will
require financing. Argo Applied
Technologies is raising 2.0 million pounds through a stock sale on the crowd funding site, CrowdCube. The opportunity could be of interest to
investors with a high tolerance for risk and patience for a slow-play
development cycle. Due diligence on Argo
is not made easy by a corporate website that requires a user name and
password. Persistent 'clicking' is needed to navigate the site. Additionally, there is considerable
scientific discussion of ionic salts and possible uses that is to be found through searches of 'ionic liquids'.
Ionic liquids
are getting attention at a time when industrial materials suppliers are
receiving orders with more and more exacting performance requirements. At the same time processing costs are
spiraling higher. In particular energy
and water prices have pressured the profit margins of metals miners and
processors alike. Ionic liquids are not
new to the scene, but the technology may be poised to disrupt the minerals
markets at the right time and with the right solutions.
Neither the author of the Small Cap Strategist web
log, Crystal Equity Research nor its affiliates have a beneficial interest in
the companies mentioned herein.
1 comment:
As a global Contract Research Organization (CRO), headquartered in New York, USA, Alfa Chemistry has served the pharmaceutical and biotechnology industries for eight years. Morpholinium ionic liquids
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