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STATE OF Scott - DNR, Eric <eric.scott@state.co.us> <br /> COLORADO <br /> Reagent testing at Climax Mill - Cytec Reagent S-11194 <br /> 1 message <br /> Lazuk, Raymond <Raymond_Lazuk@fmi.com> Mon, Apr 18, 2016 at 8:47 AM <br /> To: "Scott - DNR, Eric" <eric.scott@state.co.us> <br /> Cc: "Hilshorst, Aaron" <Aaron_Hilshorst@fmi.com> <br /> Hi Eric, <br /> Climax Metallurgy would like to test another frother reagent following the test on Polyfroth H28C that you <br /> approved last week. The next test reagent is Cytec Reagent S-11194 (SIDS attached). The testing will be <br /> identical to the Polyfroth H28C. Climax expects to use —110-150 cc/min in the cyclone overflow and —10-50 <br /> cc/min in the TK-053 (4 rougher flotation cell), a maximum of 200 cc./min total which will be around 0.02 lbs. <br /> reagent/ton ore. In both cases a LMI pump will be used to add the frother to the circuit. Climax will bring in one <br /> tote (— 275 gal) for the test. The test is anticipated to start in late April -early May and last for about 9 to 10 <br /> days. In case we see any issues with our process from the test reagent we will discontinue the test and dispose <br /> of the remaining chemical in accordance with waste regulations. The tote will placed on the cyclone deck on the <br /> grinding side of the mill where we have concrete floors and a sump to provide both secondary and tertiary <br /> containment in case of spills. We will update the EPP if we decide to make this a permanent change. <br /> Please let me know if you have any concerns with this test. <br /> Thanks, <br /> Raymond Lazuk <br /> Environmental Manager <br /> Climax Molybdenum Company <br /> Climax Mine <br /> HWY 91 - Fremont Pass <br /> Climax, CO 80429 <br /> Office: 719-486-7584 <br /> Cell: 719-201-1282 <br /> raymond_lazuk@fmi.com <br /> Cytec Frother Reagent S- 11194.pdf <br />