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<br />APR 07 '92 0^.QyPPI <br /> <br />R.i:~~z- <br />"- INTRODUCTION <br />A chemical has been discovered (perhaps better described as a solid solution <br />series) that is effective in the destruction 4f CN 1n tailings ponds. It will <br />probably be equally effective in detoxifying leach heaps also. <br />The economics of use are more attractive than ferrous sulphate and considerably <br />more attractive than chemical oxidation. <br />This technology is now patent pending. <br /> <br />