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Steps Of Engineering Concentration From International Precious Metals Institute ( IPMI )

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Examples of exciting from International Precious Metals Institute ( IPMI ) how to refine precious metals with the initial steps of engineering concentration, using chemical engineering mineral engineering metallurgical, industrial engineering geology, geosciences, organic, inorganic, health, safety and many others.

Precious metals produced from primary sources start off as or once the ore is removed from the mine it must be processed to separate the valuable content from the surrounding rock and minerals to extract the metals from the ore. 


Ore with low concentrations of metal take more energy and work to concentrate and refine. concentrations of precious metals in or can be very low, yet still be profitable to mines due to high value platinum concentrations in or can contain as little as two and a half grams per ton, that is the equivalent of 2 to 3 grams of precious metals in a million grams of surrounding Rock.

The task of separating the Platinum from the rest of the material is a multi-step process using a variety of separation techniques. Mineral engineering is the discipline that utilizes technology to concentrate or the techniques used in mineral engineering have formed the foundation of all refining and recycling processes. This is true for precious metals recycling from automotive catalysts to the separation and recycling of metals glass and plastics from household trash.

The differences in physical properties of materials being separated are used to separate them. for example a mixture of magnetic and non-magnetic particles can be separated using large magnets within separating tumblers. In every case the material must first be broken apart into small enough particles to enable them be separated.

Crushing and grinding of the first step to break down more the amount of energy used, to accomplish this is significant so technology has been refined to optimize the process or its first blasted from rock, and then the large boulders get crushed for easy transport and handling by trucks and conveyors.

The ore is then taken through various types of crushing and grinding equipment until it is almost in a fine powder form. The rock size distribution and hardness are matched to the type of equipment used impact crushers roll crushers home pressures and grinding Mills progressively reduce the particle size massive grinding or ball mills contain large hard spheres which roll and tumble to grind the ore particles between their services. Technology has been developed to monitor variations in the incoming orb properties and modify the crushing techniques to improve efficiency.

Once the metal bearing or has been crushed and then ground the precious metal bearing material must be separated from the rest of the material. A standard and widely used process called flotation separates particles based on their tendency to attach to frothing bubbles. precious metals can be found within ores metallic particles or contained in formations of oxides or sulphides. 


When the valuable content of the ore is in one form like sulfide the surface chemistry properties may differ from the surrounding material in the ore which will allow Flotation to be used to separate them the ore is mixed with water and small quantities of chemicals are added to help the separation a very small amount of wetting agent is first mixed in to selectively coat the desired particles.

This treatment alters the surface chemistry of some material and improves attraction and adherence to the bubbles in the froth, the pH of the slurry may also be monitored and adjusted to control the surface chemistry, the next chemical addition is the frothing agent which is a type of soap which will create thick bubbles that can hold on to the selected particles.

Internal impellers spin at high speeds to draw in air and create fine bubbles these bubbles swirl and rise to the top collecting the particles along the way, this is similar to and can be thought of as a cleaning, action much the same way dirt and stains are cleaned from clothing.


A stain remover may first be sprayed on to treat the fine particles in the stain and then the detergents in the wash lifted up and out. The bubbles then overflow to separate and concentrate the metal bearing particles. Prior to the next concentrating steps a series of flotation cells are typically used in which the froth from one cell cascades into the next cell for further concentration.

Once ores are concentrated additional technologies are used depending on the metals being processed as well as the other materials being removed. hydrometallurgy and pyrometallurgy are the next disciplines within the realm of mineral engineering which are next employed to concentrate the precious metals from the ore.

Hydrometallurgy involves the technologies which chemically dissolve or leach to eventually extract metals. pyrometallurgy involves melting or other thermal treatment of ores to concentrate or extract metals.

Video International Precious Metals Institute ( IPMI ) Refine Precious Metals - Step Concentration 


See Also : 

Video How To Refine Precious Metals - Hydrometallurgy

Gold Exploration Activities In Newmont Waihi

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Geologists Newmont exploring for gold on the coromandel peninsula and the gold fields look for the tale signs of historic volcanic and geothermal. Activity exploration is conducted for define mineral deposits, although it's one of the  first steps towards  developing a mine exploration in an area does not necessarily mean that mining  will follow for every thousand prospects identified only one has the likelihood of becoming an operating mine.

Exploration mine involve geological mapping rock and soil geochemical surveys and geophysical surveys. These surveys provide information on the characteristics of the rocks their history ,strength, magnetic susceptibility, electrical resistivity and mineral content . These are all parameters which help identify areas of greater prospectivity where more detailed work including exploration drilling may be conducted.


Exploration drilling provides a wide range of information on some surface geology, wine space drilling can often show geologic trends which point to areas of Greater prospectivity. Most of the rigs used in this area a diamond drilling rigs, they use a diamond impregnated drill bits capable of boring through hard rock. The drill bit cuts a circular hole to produce drill core for analysis.

The drill bit has attached to the end of a string of hollow steel rods. The rigs engine spins the drill string as it is pushed into the ground. every three meters a new rod is added, as the drill string is spinning and penetrating the rock the chorus forced into the drill rod, if meet raw so this core is pulled out through the inside of the rods and placed in boxes ready for analysis by geologists.


In this region most holes are drilled to a depth of between 200 and 500 meters and due to the near vertical orientation of the quartz veins the holes must be angled to intersect the veins and maximize the information from the drill core, then taken back to a corset and laid out so geologists can record the rock type from surface to the bottom of the hole.

Drill sites are chosen and controls are in place to ensure that exploration drilling activities minimize the impact to the environment. the consent of landowners and occupies is required for any exploration drilling activities and this is formalized in an access agreement.

Drill rigs come in a wide range of configurations from large truck for track mounted to small skid mounted healthy portable rigs. The type of rig used depends on the location ease of access and depth of hole planned. Water is sourced from local streams or if necessary brought to the site. resource consents from the Regional Council are required to take water from streams.

Drilling fluids are added to the water at the rig, these are used to lubricate the drill bit and flush the rock cuttings out of the hole.  The cuttings that come up out of the hole may look muddy and messy but they're captured in sumps at the drill site, where the rock cuttings settle out and the fluids harmlessly break down over time.

There are no discharges off the site . Drilling activities must also comply with all district and regional council regulations covering a range of potential environmental effects.

When the drilling program is completed the drillers cement up the hole before the rig leaves the site. the sumps are filled and all equipment is removed. the site is rehabilitated to the satisfaction of the landowner

Video Gold Exploration Activities In Newmont Waihi

New Job Vacancy In Richmont Gold Mines

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Richmont Mines is an established gold producer with a proven 25 year track-record of gold production, mine development and successful mineral exploration in Canada. The Corporation operates the Beaufor Mine in Quebec, and also produces gold from the Island Gold Mine in Ontario, where it is simultaneously developing a significant estimated 1 million ounce high-grade global resource at depth.

Richmont Mines vision is to become a leading intermediate gold producer focused on the Americas generating superior per share valuation. Committed to a Sustainable Business Model and a strategy of long-term growth, and will fully utilize the Corporation's strong balance sheet, assets, cash flow, capital structure and the extensive experience of the Corporations' Board of Directors and management team to build the next leading Canadian based intermediate gold company.

At the heart of all we do is a commitment to responsibility, integrity and accountability and the Corporation's four corporate values of Family, Health & Safety, Team Work and Growth.


About Richmont Gold Mines:


Island Gold Mine is located near Dubreuilville in Northwestern Ontario and is an underground gold mine operation. With the company's focus on this flagship operation, there are transformational development plans at Island Gold to position the mine for future growth by unlocking the value of the Resource extension at depth. This is a very exciting time in the mine life of Island Gold and with that we are searching for highly motivated and committed people to join our team! If you are willing to be part of a team that is dedicated to growth, high performance and a culture of safety and accountability, we would like to hear from you!

Job Vacancy In Richmont Gold Mines

1. Environmental Technician

Closing Date  :  19 Apr 2017
Location         :   Dubreuilville ON
Type                :   Full-Time
Summary       :
             
Reporting to the Superintendent, Environment, the Environmental Technician will be responsible to maintain the environmental management system as required and acting as a resource for anyone seeking information.   This is a key role for the mine and the successful candidate must be an exemplary employee towards the environment with a positive and energetic personality.
    
2. Long-hole planner

Closing Date  :  18 Apr 2017
Location         :   Dubreuilville ON
Type                :   Full-Time
Summary       :
In general, the Junior Engineer will work closely with senior production engineer to provide drilling layout, coordinate production drilling, develop long-hole stoping strategies, blasting result analysis, production performance analysis and other mining engineering related tasks.


3. Mechanic - Class A

Closing Date  :  17 Apr 2017
Location         :  Dubreuilville ON
Type                :  Full-Time
Summary
Reporting to the Mobile Maintenance Supervisor, the Mobile Mechanic is responsible to perform a full range of maintenance, repair and service activities on heavy equipment. The employee uses considerable independent judgment in making decisions and is able to perform advanced trouble shooting on equipment. Repair and maintain mine equipment in compliance with workplace safety rules and regulations.

4. Mine Supervisor

Closing Date   :  1 May 2017
Location          :  Dubreuilville ON
Type                 :  Full-Time
Summary
Reporting to the Mine Captain, the Mine Supervisor is responsible to provide complex technical support to mine / underground operations. To follow established policies, practices, and procedures when completing work assignments. To provide work direction to mine / underground operations staff. To ensure continued growth of the team.  To maximize operational efficiencies and profitability and to be a leader in Health, Safety and Environment.

5. General Submission for Non Active Positions - QC

Closing Date     :  1 Jan 2018
Location            :  Val-d'Or QC
Summary
GENERAL APPLICATIONS for ALL NON Active Positions. Beaufor Mine is always open to any and all applicants, please feel free to submit your resume in confidence. Should your skills and experiences match with any future open positions we will be sure to contact you. Please Note that all submissions will be held for 6 months from the date of submission.

6.  General Submission for Non Active Positions

Closing Date     :  2 Jan 2018
Location            :  Dubreuilville ON
Type                   :  Full-Time
Summary
Island Gold is always open to any and all applicants, please feel free to submit your resume in confidence.  Should your skills and experiences match any future open positions we will be sure to contact you.  Please Note that all submissions will be held for 6 months from the date of submission

7.  Mobile mechanic -Class 1   

Closing Date      :  1 Jul 2017
Location             :  Val-d'Or QC
Type                    :  Full-Time
Summary
Under the supervision of Mechanical foreman, the mobile mechanic-Class 1 has as main task the repair and maintenance of all mechanical equipment, diesel, hydraulic and pneumatic underground and surface. He is also called to do the welding, all according to the rules, procedures and policies of the company.

8.  Junior Geologist

Closing Date     :  28 Apr 2017
Location            :  Val-d'Or QC
Type                   :  Full-Time
Summary
Under the supervision of the chief geologist, the junior geologist works in close collaboration with the production geologist. The junior geologist visits daily the active workplaces underground (development faces and construction site), carries out geologic mapping, alignment to follow if development is in geological control, identifies the ore and the waste(sterile) to be cleared, and produces and distributes a visit report to the staff concerned. He assists geologists in the planning of diamond drilling and execute drill cores

9.  Mining engineer JR, Ventillation and field control

Closing Date     :  22 Apr 2017
Location            :  Val-d'Or QC
Type                  :   Full-Time
Summary
Under the supervision of the Chief Engineer, the Junior Mining Engineer in Ventilation and Field Control is responsible for checking the flow and quality of air in underground workplaces and making adjustments where necessary. He makes sure to fill in all the necessary official documents for the various required reports. It participates and plans the ventilation during the concepts and regularly updates the ventilation plans. Finally, it inspects workplaces in accordance with plans and specifications.

10. Instrumentation and control technician

Closing Date     :  29 Apr 2017
Location            :  Val-d'Or QC
Type                   :  Full-Time
Summary
Under the supervision of the electrical foreman, the instrumentation and control technician is responsible for the proper operation and advancement of the automation network. He may be subject to emergency calls at night or on weekends. The technician performs work as underground than on the surface and must follow the standards set by the company. All in accordance with company procedures, policies and standards.

11. Electrician field

Closing Date     :  22 Apr 2017
Location            :  Val-d'Or QC
Type                   :  Full-Time

Summary
Under the supervision of the electrical foreman, Electrician field has the primary responsibilities of working on the repair and maintenance of any network, equipment, mobile or stationary electrical device and PLC underground and on the surface. He must ensure that the equipment fleet is the most available and functional as possible while respecting the rules, procedures and company policies. In addition electrician field must take emergency calls day and night and be available during his work schedule

 12. Raise man, Leader

Closing Date     :  28 Apr 2017
Location            :  Val-d'Or QC
Type                   :  Full-Time
Summary
Under the supervision of the foreman underground, the raise man, leader maintain his equipment, his place of work, and the taxiway. It must carry out clearing, drilling, and blasting. All in compliance with the laws, rules, regulations, procedures, policies and others of the company and the law of mines and occupational health and safety of Quebec. He may also be called upon to do some timbering and to replace an absent worker on another post.

We encourage you to take some time to explore your career opportunities at Richmont Mines


https://richmont-mines.startdate.ca/#/

Working at Mill Operator II - Sierrita - Green Valley, AZ

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We encourage you to take some time to explore your career opportunities at Freeport-McMoRan. Employee who under general supervision safely performs duties related to the production of copper and/or molybdenum concentrates in the Mill at a highly skilled level.

Freeport-McMoRan is a premier U.S.- based natural resource company successful history of conducting business in a safe, highly efficient and socially responsible manner. The Company has a dynamic portfolio of operating, expansion and growth projects in the mining industry

Working at Mill Operator II - Sierrita - Green Valley, AZ

We have the assets, the talent, the drive and the financial strength to provide attractive and rewarding careers for our employees. We encourage you to take some time to explore your career opportunities at Freeport-McMoRan.
Employee who under general supervision safely performs duties related to the production of copper and/or molybdenum concentrates in the Mill at a highly skilled level.
  • Completes duties within the Mill process which could include tasks within the following areas: fine crushing plant, COB, ball mill, roughers, cleaners, flotation cells, moly plant, copper moly thickeners, tailing thickeners, and mill control room
  • Takes process readings and makes necessary process changes or adjustments
  • Uses electronic process monitoring system to monitor conveyor, plant systems and equipment
  • Performs start-up and shut-down of plant or related systems
  • Mentors and trains other employees
  • Acts as Fill-in Supervisor as needed
  • Operates processing equipment and makes adjustments as needed
  • Performs basic maintenance on processing equipment and reports maintenance issues
  • May operate mobile equipment such as front-end loaders, forklifts, skid-steer loaders, and overhead cranes
  • Performs area housekeeping duties and may perform work area and safety audits
  • Performs other duties as required
Minimum Qualifications
  • Two (2) years of experience in Mill Process Operations
  • Knowledge of the wet grind system and flow systems through mill and flotation area
  • Knowledge of the filtering and drying process
  • Knowledge of placard system to accurately identify hazardous materials
  • Knowledge of environmental policies and responsible for reporting any issues and/or concerns
  • May be required to complete HAZMAT training as required by Department of Transportation (DOT) regulations

Qualifications

Preferred
  • High School diploma or GED
Criteria/Conditions
  • 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
  • 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, work on elevated platforms and work in confined spaces
  • Occasionally may be required to lift up to fifty (50) pounds during the course of the work day
  • Will be required to work rotating shifts 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 City

Tucson

Job

Mill Operator II - Sierrita - Green Valley, AZ

Primary Location

United States Arizona Green Valley
https://www.freeport-mcmoran.jobs/job/green-valley/mill-operator-ii-sierrita-green-valley-az/487/4393585

Job Vacancy Senior Process Engineer - Bagdad, AZ Freeport-McMoRan

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Freeport-McMoRan Job Vacancy Senior Process Engineer - Bagdad, AZ . Freeport-McMoRan is a premier U.S.-based natural resource company with headquarters in Phoenix, Arizona. Freeport operate large, long-lived, geographically diverse assets with significant proven and probable reserves of copper, gold, molybdenum, cobalt, oil and gas.  The Company has a dynamic portfolio of operating, expansion and growth projects in the copper industry and is the world’s largest producer of molybdenum and a significant gold, oil and gas producer.

Freeport-McMoRan have a long and successful history of conducting mining business in a safe, highly efficient and socially responsible manner. Freeport have the assets, the talent, the drive and the financial strength to provide attractive and rewarding careers for employees.

We encourage you to take some time to explore your career opportunities at Freeport-McMoRan. Provide technical advice and guidance for all phases of assigned large/complex Engineering projects and programs, ensuring the successful conclusion of all phases within an appropriate time and at appropriate cost.  

Review Job Senior Process Engineer - Bagdad, AZ , investigate and develop appropriate recommendations regarding assigned Engineering projects.

  • Manage projects and serve as Subject Matter Expert (SME) on large/complex site planning/construction, expansion or modifications
  • Provide guidance and counsel to the site management team on applicable processes, practices, and existing/proposed local, state and federal regulations
  • Contribute to site strategic planning and budgeting efforts for designated Engineering areas
  • Develop and evaluate AFE’s (Authorization for Expenditure) for capital funding requests
  • May evaluate and administer contracts with vendors for the provision of services and equipment
  • May represent the site on Company sponsored steering committees, task forces, or teams
  • Perform other duties as assigned

  • Minimum Qualifications
    • Bachelor's degree in an appropriate Engineering discipline and five (5) years of related experience in Engineering or related field, OR
    • Master's degree in an appropriate Engineering discipline and three (3) years of related experience in Engineering or related field
    • Knowledge of the principles and practices of Engineering
    • Able to research and analyze information of considerable difficulty and draw valid conclusions
    • Skilled in managing large/complex Engineering projects
    • Able to evaluate and implement new methods and techniques for operational improvement
    • Ability to develop and maintain awareness of occupational hazards and safety precautions
    • Skilled in following safety practices and recognizing hazards
    • Ability to communicate effectively, both orally and in writing

Qualifications

Preferred
  • Advanced degree or Professional Engineering (PE) Certification
  • DCS process control experience
  • Seven (7) years of ABB experience
  • Electrical and instrumentation experience
  • Five (5) years of computer programming, networking, and troubleshooting experience
  • Experience with PLC, AB, OVATION, and SCADA
  • Microwave and radio communications experience
  • Supervisory experience
Criteria/Conditions
  • 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
  • Work is 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 regularly required to stand, sit, demonstrate manual dexterity, climb stairs and ladders, work on elevated platforms, talk, hear and see
  • Occasionally may be required to lift moderately heavy objects up to thirty (30) pounds during the course of the workday
  • 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 City

Prescott Valley

Job

Senior Process Engineer - Bagdad, AZ

Primary Location

United States Arizona Bagdad
https://www.freeport-mcmoran.jobs/job/bagdad/senior-process-engineer-bagdad-az/487/4393587

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