Moly Process Operator I

Green Valley, Arizona, US
Jun 23, 2022
Jul 01, 2022
Full Time
Freeport-McMoRan is a leading international mining company with headquarters in Phoenix, Arizona. We operate large, long-lived, geographically diverse assets with significant proven and probable reserves of copper, gold, and molybdenum. The company has a dynamic portfolio of operating, expansion and growth projects in the copper industry. Freeport-McMoRan is one of the world's largest publicly traded copper producers, the world's largest producer of molybdenum and a significant gold producer. We have a long and successful history of conducting our business in a safe, highly efficient and socially-responsible manner.

We have the assets, the talent, the drive and the financial strength to provide attractive and rewarding careers of our employees. We encourage you to take the time to explore the opportunity to advance your career at Freeport-McMoRan.


Skilled employee who under supervision safely performs process duties in the Moly Plant.

  • Supports and completes duties within the Moly Plant that could include the following areas: Leach, Roaster, Roaster Process, Moly Flotation, Moly Packaging and Utility
  • May operate, monitor and make adjustments to the following processing equipment and related systems: Leach system, chlorine system, Boilers, water softeners, hot filters, heat exchangers, Therminol Heater, Roasters, and Hammer mills
  • Completes duties within the Leach area that may include boiler operation & cleaning, hot side tasks, cold side tasks, Chlorinator system operation and monitoring
  • Completes duties within the Roaster that may include roaster operation & cleaning, Oxide transfer and storage tasks
  • Completes duties within the Moly Packaging area that may include bag line, briquette line, Can line, drum line and shipping/receiving tasks
  • Completes duties within the Utility that may include, cleaning of the weir tank: screens, sprays, drip ring, both inlets. Inspection of nozzles and balls and maintaining door gaskets. Receiving Moly trucks, weighing/storing product and chlorinator tasks
  • Take shift samples for material analysis as needed
  • Complete multiple inspections of plant equipment and processes
  • Operates mobile equipment such as: Man lifts, forklifts, skid steers, overhead cranes
  • Perform or assist with minor maintenance activities which could include: repairs to pumps, valves and piping systems, maintaining screw conveyors, the roaster, and bucket elevators
  • Performs other duties as required


Minimum Qualifications
  • Six (6) months of experience with material handling equipment in an industrial plant setting
  • LOTOTO procedures


  • High School diploma or GED

  • Ability to understand and apply verbal and written work and safety-related instructions and procedures given in English
  • Ability to communicate in English with respect to job assignments, job procedures, and applicable safety standards
  • Must be able to work in a potentially stressful environment
  • This is a Safety sensitive role
  • Work is performed in a mine or manufacturing plant setting, which may include exposure to extremes in temperature and humidity, moving mechanical parts, risk of electrical shock, toxic chemicals, explosives, fumes or airborne particles
  • While performing the duties of this job, the employee is required to stand, sit, demonstrate manual dexterity, climb stairs and ladders, and work on elevated platforms
  • Willing and able to work in a physical environment, including lifting up to fifty (50) pounds safely throughout the work day
  • Willing and able to work rotating shifts that include days, nights, weekends, holidays, and both scheduled and unscheduled overtime in a 24/7/365 operation
  • Personal protective equipment is required when performing work in a mine, outdoor, manufacturing or plant environment, including hard hat, hearing protection, safety glasses, safety footwear, and as needed, respirator, rubber steel-toe boots, protective clothing, gloves and any other protective equipment as required
  • Freeport-McMoRan promotes a drug/alcohol free work environment through the use of mandatory pre-employment drug testing and on-going random drug testing as per applicable State Laws

Freeport-McMoRan has reviewed the jobs at its various office and operating sites and determined that many of these jobs require employees to perform essential job functions that pose a direct threat to the safety or health of the employees performing these tasks or others. Accordingly, the Company has designated the following positions as safety-sensitive:
  • Site-based positions, or positions which require unescorted access to site-based operational areas, which are held by employees who are required to receive MSHA, OSHA, DOT, HAZWOPER and/or Hazard Recognition Training; or
  • Positions which are held by employees who operate equipment, machinery or motor vehicles in furtherance of performing the essential functions of their job duties, including operating motor vehicles while on Company business or travel (for this purpose "motor vehicles" includes Company owned or leased motor vehicles and personal motor vehicles used by employees in furtherance of Company business or while on Company travel); or
  • Positions which Freeport-McMoRan has designated as safety sensitive positions in the applicable job or position description and which upon further review continue to be designated as safety-sensitive based on an individualized assessment of the actual duties performed by a specifically identified employee.

Equal Opportunity Employer/Protected Veteran/Disability

Nearest Major Market: Tucson
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