2011-12-15_REVISION - M1977493 ‎(2)‎

• Permit No: M1977493
• IBM Index Class Name: REVISION
• Doc Date: 12/15/2011
• Doc Name: ENVIRONMENTAL PROTECTION PLAN
• From: CLIMAX
• To: DRMS
• Type & Sequence: TR18
• Email Name: ECS
• Media Type: D
• Archive: No

Chemical
Type & Use
Product
Name
Storage
Location
Container
Type
Storage
Capacity
Seco
Containment
Adjustment,
Hydroxide
precipitation
of metal ions
Oxide
(CaO, Lime,
quicklime)
Station, SDP,
3 Dam Pump
Station
pH
adjustment to
meet
discharge
standards
Sulfuric
Acid
(H
Mayflower /5
Dam Pump
Station
One tank
7,000
gallons
Yes
Technical Revision (TR -18)
Environmental Protection Plan
Climax Molybdenum Company
Permit No. M- 1977 -493
More specific information regarding location and storage of these chemicals is found in Section T- 5.3.2.
Detailed information regarding affects on human health and the environment is found in the MSDS data in
Appendix T -B.
T -3.2 Designated Chemicals Information
T -3.2.1 Collector
A collector reagent 'collects' the molybdenum in a froth flotation extraction process allowing the
molybdenum to float to the surface of the float cells. Nalco TX 15256 (or equivalent) will be used as a
collector /cleaner (regrind) reagent in the milling process. Nalco TX 15256 is a combustible petroleum
distillate. Aside from being combustible, this product is a skin and eye irritant.
In the environment, the collector reacts similar to other petroleum distillates and can cause short-term
damage to terrestrial and aquatic ecosystems. Spills should be contained with inert absorbents, and
contaminated soils should be removed.
Current metallurgical testing is being conducted at 0.10 to 0.20 lb of collector per ton of ore processed.
The collector will be stored in one tank with a capacity of 13,500 gallons. The collector will be stored in
the reagent storage area of the mill building (see Mill Building Detail - Area 450 on the south side of the
mill building on Figure AM- 06- T -06). Secondary containment with a volume greater than that of the tank
will be provided in the reagent storage area (see Reagent Storage Area Detail Figure AM- 06- T -07). Tank
level indication will be available locally as well as through the control system. The control system will
alarm for a given tank low and high level. A local alarm hom will sound for a given tank high level.
In the event of a storage tank failure, the collector will be contained in the reagent storage area via
secondary containment. The secondary containment area is equipped with a sump but no sump pump.
In the event of a release in this area, a pump will be placed in the secondary containment sump and the
collector will be routed back into the process circuit or pumped into a suitable container for proper
disposal through direction from the environmental department. A spill that occurs during offloading into
the storage tank will be handled similarly using a sump located in the offloading area.
In the event of a collector distribution system failure, the collector will be contained within the mill building
and will be sent to tailings or the rougher concentrate thickener depending on where the failure occurs.
T - 3.2.2 Frother
A frother reagent creates froth in the agitated reagent bath and assists in holding the froth intact at the
surface of the float cell. Nalco 9741(or equivalent) will be utilized in the mill circuit as a flotation frother.
Nalco 9741 contains aliphatic alcohol. Nalco 9741 is combustible. Primary exposure pathways include
eye contact, skin contact and inhalation.
In the environment, Nalco 9741 will distribute to air, water and soil /sediment in the approximate
EPP: Version R2
T -9 December 2011