Molybdenum Mining
What is Molybdenum
Molybdenum (element #42, symbol Mo) is a metallic, lead-gray element, with a high melting point (4,730 degrees Fahrenheit). This is 2,000 degrees higher than the melting point of steel, and 1,000 degrees higher than the melting temperature of most rocks. Molybdenum was discovered by Carl Wilhelm Scheele in 1778, and was isolated and named by Peter Jacob Hjelm in 1781.
The most important ore source of molybdenum is the mineral molybdenite; a minor amount is recovered from the mineral wulfenite. Molybdenum commonly is recovered as a by-product or co-product from copper mining. The U.S. produces significant quantities of molybdenite. The major producers of molybdenum in 2013 were China, the USA, Chile, Peru, Mexico, and Canada.
Molybdenum Mining
Molybdenum occurs as the principal metal sulfide in large low-grade porphyry molybdenum deposits and as an associated metal sulfide in low-grade porphyry copper deposits. Resources of molybdenum are adequate to supply world needs for the foreseeable future.
When molybdenum is found in low-grade copper deposits, it is typically mined through open pit methods and recovered as a by-product of the copper refining. When molybdenum forms its own low grade porphyry deposit, the concentration of molybdenum may be of enough grade to merit the cost of an underground operation.
Molybdenum Uses
Molybdenum is an important material for the chemical and lubricant industries. “Moly” has uses as catalysts, paint pigments, corrosion inhibitors, smoke and flame retardants, dry lubricants, on space vehicles and is resistant to high loads and temperatures. As a pure metal, molybdenum is used as filament in light bulbs, metal-working dies and furnace parts. It is alloyed with steel making it stronger and more highly resistant to heat. The iron and steel industries account for more than 75% of molybdenum consumption.
Molybdenum Mining Process
The stone will be initially crushed by Jaw Crusher. Then the material with reasonable fineness will be taken to the ball mill by the elevator and feeder machine. In the ball mill the material will be crushed and ground again. Out of the ball mill the material will go to the next step: Classifier. Screw Separators will wash and classify the stone mixture according to their different sinking speed because of their different proportions.
Then the magnetic machine will further separate the mixture material according to their magnetic ratio. After the first separation by the magnetic separator, the flotation machine will separate the material again by adding special medicine in terms of the features of different stone. When the needed material has been separated, the concentration machine is needed to thicken the material. At last, the material will go through the drier.
JXSC Mining Processing
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