The separation of cassiterite from a low-grade tinpegmatite

Laapas, H.; Lukkarinen, Toimi; Salo, Arja

doi:10.1016/0301-7516(85)90029-8

International Journal of Mineral Processing

1985

DOI: 10.1016/0301-7516(85)90029-8

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The separation of cassiterite from a low-grade tinpegmatite

H. Laapas¹,

Toimi Lukkarinen²,

Arja Salo³

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2011

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Validation of Solids Suspension Viscosity Measurements Using Computational Fluid Dynamics

Dasari

Berson

2011

Chem Eng & Technol

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Accurately measuring the viscosity of a solids suspension requires uniform suspension of the solids in the viscometer cup. In a cup-and-impeller viscometer system, solids may settle when the impeller speed is too low, causing viscosity measurements to appear lower than that of a well-suspended slurry. Pre-mixing of a solids suspension is typically performed to achieve steady state prior to measurements. Data here shows that the measured viscosity values differ depending on the pre-mixing speed, indicating that the solids are not properly suspended at all speeds. A commonly used cup-and-vane impeller system can be thought of as a mixing tank that should operate above the uniform-suspension speed (USS), although determining the USS experimentally is rather subjective. Computational fluid dynamics (CFD) is employed here to determine the USS of a pretreated corn stover (PCS) solids suspension and to confirm the experimentally measured USS.

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Validation of Solids Suspension Viscosity Measurements Using Computational Fluid Dynamics

Dasari

Berson

2011

Chem Eng & Technol

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show abstract

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The separation of cassiterite from a low-grade tinpegmatite

Cited by 1 publication

References 0 publications

Validation of Solids Suspension Viscosity Measurements Using Computational Fluid Dynamics

Validation of Solids Suspension Viscosity Measurements Using Computational Fluid Dynamics

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