Pelletization definition of Pelletization in the Free Online Encyclopedia.

pelletization [pel·əd·ə′zā·shən]

(mining engineering)

Forming aggregates of about ½-inch (13-millimeter) diameter from finely divided ore or coal.

Pelletization

the process by which pellets are formed in drum, pan or conical granulators by the action of water on particles of ore or concentrate.

The surface tension of the thin film of water on the particles of ore produces the compressing effect, while the water that seeps by capillary action into the spaces between the particles binds the particles by negative capillary pressure. The strength of this binding effect depends primarily on the size and shape of the particles but also on the surface properties and wettability of the ore.

The consolidation of the particles into a pellet of the required size in the granulator is analogous to the formation of a snowball. The cohesive strength of the resulting pellets is proportional to the hydrophilicity and degree of dispersion of the particles. After pelletization, the pellets are hardened by roasting, during which ceramic bonds form between the particles or during which the particles are consolidated as a result of softening. Roasting is conducted in shaft furnaces, conveyer and ring roasting machines, and combined tube-grid furnaces. The annual output of roasting machines is from 0.5 to 5 million metric tons.

The pelletizing process was first proposed in the 1920’s. The first industrial pelletizers were constructed in the USA between 1945 and 1955. In 1973 the annual world capacity for the production of roasted pellets reached 150 million metric tons.

REFERENCE

Berezhnoi, N. N., G. V. Gubin, and L. A. Drozhilov. Okomkovanie tonkoizmel’chennykh kontsentratov zheleznykh rud. Moscow, 1971.

E. N. IARKHO

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No references found	Figure 10 demonstrates just one of the complications from use of the OAN structure method, which is that loose black samples always exhibit higher OAN levels than corresponding pelletized samples; however, there is no evidence of reduction in primary structure due to the pelletization process. Advances in structure measurements of carbon black by Joyce, George A.; Henry, William M.; Magee, Ricky W. / Rubber World Corkins and VSHI developed a persuasive statewide plan to develop Vermont's 100,000 acres of underutilized land to grow prairie grass for a revolutionary grass pelletization fuel system. Brower Youth Awards: meet our 2008 winners by Smith, Sharon / Earth Island Journal Dopf: Glatt developed an innovative pelletization system called CPS[TM]. CMOs address solid dosage manufacturing: where is this outsourcing ... by Dubin, Cindy H. / Nutraceuticals World	Pélissier, Aimable Jean Jacques Pelite pelitic pelitic hornfels pelitic schist Pell equation Pell's Equation pell-mell structure Pella Pellagra Pellan, Alfred Pelleas Pelléas and Mélisande Pelleas, Sir Pellet pellet cooler pellet fusion pellet mill pellet molding pellet technique Pelletier Pelletier, Pierre Joseph pelletierine pelleting Pelleting of Seeds Pelletization Pelletized Feeds pelletizer pelletron Pellets Pelli, César Pellicle Pellico, Silvio pellicular resins pellicular water pellicularia disease Pelliot, Paul pellodite pellotine pellucid Pelly Pelmatozoa pelmet pelmet board pelmet lighting pelmicrite Pelnar, Josef Pelnár, Josef Pelobatidae pelodite Pelodytes	Pellet Gastric Emptying Test Pellet gun Pellet gun Pellet mill Pellet molding Pellet molding pellet technique Pellet-Clad Interaction Pellet-Cladding Interface Pellet-Cladding Mechanical Interaction pelleted pelleted pelleted pelleted feed pelleted feed pelleted feed pelleted feed Pelleted Only After Boiling Pelletier Pelletier Pelletier Pelletier, Pierre Joseph Pelletier, Pierre-Joseph Pelletier, Pierre-Joseph pelletierine pelleting pelleting pelleting Pelleting of Seeds Pelletise Pelletization pelletize Pelletized Feeds pelletizer Pelletizing Pelletron pellets pellets pellets Pelli, César Pellian equation Pellibranchiata Pellican Pellican Pellican Pellican crossing Pellican crossing pellicere pellicle pellicle pellicle pellicles pellicles pellicles Pellico, Silvio pellicular pellicular pellicular pellicular resins pellicular water Pellicularia

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Figure 10 demonstrates just one of the complications from use of the OAN structure method, which is that loose black samples always exhibit higher OAN levels than corresponding pelletized samples; however, there is no evidence of reduction in primary structure due to the pelletization process.

Advances in structure measurements of carbon black by Joyce, George A.; Henry, William M.; Magee, Ricky W. / Rubber World

Corkins and VSHI developed a persuasive statewide plan to develop Vermont's 100,000 acres of underutilized land to grow prairie grass for a revolutionary grass pelletization fuel system.

Brower Youth Awards: meet our 2008 winners by Smith, Sharon / Earth Island Journal

Dopf: Glatt developed an innovative pelletization system called CPS[TM].

CMOs address solid dosage manufacturing: where is this outsourcing ... by Dubin, Cindy H. / Nutraceuticals World