| Chalk (7) |  |
| Conglomerate (8) | |
| Laterite (3) | |
| Limestone (22) | |
| Sandstone (5) | |
| Shale (18) | |
The company has reported the successful application of its patented proprietary process for nickel extraction from laterites for the production of nickel sulfate.
This new concept was applied on laterites from Guatemala Cuba and the United states and achieved a nickel extraction ranging from 95%to 97%at ambient pressure and moderate temperature over a short period of time.
This approach has simplified greatly the collection of nickel from laterites as per the following table:
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