Laserfiche WebLink
Climax Molybdenum Climax Mine <br /> ® Highway 91 - Fremont Pass <br /> A Freeport-McMoRan Company Climax,one <br /> ppy Phone (719) 486-7718718 <br /> Fax (719) 486-2251 <br /> September 28, 2020 <br /> RECEIVED <br /> Mr. Dustin Czapla <br /> Environmental Protection Specialist OCT 012020 <br /> Division of Reclamation, Mining and Safety <br /> Department of Natural Resources DIVISION OF RECLAMATION <br /> 1313 Sherman St. Room 215 MINING AND SAFETY <br /> Denver, Colorado 80203 <br /> RE: Climax Mine, Permit No. M-1977-493, Reagent Testing <br /> Dear Mr. Czapla <br /> Climax Metallurgy would like to run a short test on five reagents that would be used in the flotation <br /> process. The reagents are Modified Starch 3221, Modified Starch 2401, Modified Starch 1311, and <br /> Star Floc from Chemstar Products Company; and POLYFLOAT D2942 from Quadra Chemicals <br /> (see attached SDS's). The proposed dosing rate for the Chemstar products will be 20-30g/ton and the <br /> Quadra product will be 0.21b/ton of ore. The test will occur over the next month. All reagents will be <br /> stored in a 1 kg or 1 L container and placed in secondary containment within the Climax metallurgical <br /> lab. In the event we see any issues with our process from the reagent testing, we will discontinue the <br /> test and dispose of the remaining chemical in accordance with waste regulations. We will update the <br /> EPP if we decide to make this change permanent. <br /> Please let me know if you have any concerns. We would like to begin the test as soon as possible. <br /> Sincerely, <br /> Diana Kelts <br /> Environmental Manager <br /> attachments <br />