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• <br /> <br />~~ INCO SO2 -AIR CYANIDE DESTRUCTION <br />CHEMISTRY <br />OXIDATION OF WEAK ACID DISSOCIABLE CYANIDE <br />CN'w,,p + SOZ + OZ + HZO -3 OCN" + H2SO4 <br />CYANIDE SULFUR OXYGEN CYANATE SULFURIC <br /> DIOXIDE ACID <br />1 LB 2.64 LB 1.23 LB 1.88 LB 3.77 LB <br />HZSO~ + CA(OH)Z <br />i SULFURIC LIME <br />ACID <br />3.77 LB 2.85 LB <br />~ CASO4.2H2O <br />CALCIUM SULFATE <br />(GYPSUM) <br />6.62 LB <br />~,, <br />