Canadian Mining Journal

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CHROME: KWG encouraged by latest metallurgical tests

ONTARIO – KWG Resources of Toronto says it is encouraged by the results of recent laboratory tests using natural gas to reduce the chromite ore from the Black Horse deposit in the Ring of Fire. The new method shows promise for the...



ONTARIO – KWG Resources of Toronto says it is encouraged by the results of recent laboratory tests using natural gas to reduce the chromite ore from the Black Horse deposit in the Ring of Fire. The new method shows promise for the conversion of chromite into a metallic chrome and iron alloy.

The tests were conducted by XPS Consulting and Testwork Services. The chromite was blended with solid carbon as a reductant. Reformed natural gas was introduced into the solid material at atmospheric pressure to produce the alloy. The reaction begins at a temperature of 900°C when an accelerant is used, a temperature substantially lower than is usual for chromite ores. As well as needing lower temperatures, the reaction occurs in less than an hour, much faster than direct reduction methods.

KWG says the study suggests that overall direct energy costs to turn a tonne of concentrate into ferrochrome alloy are less than half the requirement of conventional technology. Lower energy costs translate into fewer greenhouse gas emissions, smaller ecological footprint, plus lower capital and operating costs.

KWG is earning an 80% interest in the Black Horse deposit from Fancamp Exploration. Please visit KWGResources.com.