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SENT BY~Ph1N5 -26-92 ~ 1336 ~ 30329~40yC0 MiNEb LAND REC'L pit 5 <br />^ A .. C I <br />~,iWVa`aN:. e.: ~.wLY-rlr'1ARw3iv <br />r' 6. DATA EVALUATION: CYTOX PROCESS <br />The Cytox process is designed to reduce the free cyanide levels in the tailings prior <br />to discharge to the tailings facility. Cytox, a zinc/iron sulphate, reacts witJh the free <br />cyanide to produce non-reactive, metallo cyanide complexes. <br />Pre-detox (pre-Cytox) levels of free cyanide from sample .q1 ere be wean 184 and <br />188 mg/L. Post-detox levels of free cyanide are calculated a be a theoretical <br />maximum of 32 mg/L in the lower pond/Collection pond tnd ire realistically a <br />maximum value in the range of 16 mg/L to 22 mg/L. <br />Accordingly, the Cytox addition is apparently successful in reducir,d the frde cyanide <br />to B% to 17% of the level in the original tailings slurry. <br />10 <br />