Separation of solids by varying the bulk density of a fluid separating medium
Abstract
A method and apparatus for separating objects having a density greater than a selected density value from objects having a density less than said selected density value. The method typically comprises: (a) providing a separation vessel having an upper and lower portion, said vessel containing a liquid having a density exceeding said selected density value; (b) reducing the apparent density of the liquid to said selected density value by introducing solid, bubble-like bodies having a density less than that of the liquid into the lower portion of the vessel and permitting them to rise therethrough; (c) introducing the objects to be separated into the separation vessel and permitting the objects having a density greater than the apparent density of the liquid to sink to the lower portion of the vessel, while the objects having a density less than said selected density value float in the upper portion of the vessel; and (d) separately removing the higher density objects in the lower portion and the lower density objects in the upper portion from the separation vessel. The apparatus typically comprises: (a) a vessel containing a liquid having a density such that at least part of said objects having a density exceedingmore »
- Inventors:
-
- Richland, WA
- Brea, CA
- Issue Date:
- Research Org.:
- Battelle Memorial Institute, Columbus, OH (United States)
- OSTI Identifier:
- 863174
- Patent Number(s):
- 4111798
- Assignee:
- Battelle Development Corporation (Columbus, OH)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
B - PERFORMING OPERATIONS B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS B03B - SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- DOE Contract Number:
- AC06-76RL01830
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- separation; solids; varying; bulk; density; fluid; separating; medium; method; apparatus; selected; value; typically; comprises; providing; vessel; upper; portion; containing; liquid; exceeding; reducing; apparent; introducing; solid; bubble-like; bodies; permitting; rise; therethrough; separated; sink; float; separately; removing; therein; means; reduce; effective; whereby; remain; afloat; adjust; comprising; typically comprises; bulk density; selected density; upper portion; vessel containing; density value; separation vessel; comprising solid; introducing solid; typically comprise; /209/252/
Citation Formats
Peterson, Palmer L, Duffy, James B, and Tokarz, Richard D. Separation of solids by varying the bulk density of a fluid separating medium. United States: N. p., 1978.
Web.
Peterson, Palmer L, Duffy, James B, & Tokarz, Richard D. Separation of solids by varying the bulk density of a fluid separating medium. United States.
Peterson, Palmer L, Duffy, James B, and Tokarz, Richard D. Sun .
"Separation of solids by varying the bulk density of a fluid separating medium". United States. https://www.osti.gov/servlets/purl/863174.
@article{osti_863174,
title = {Separation of solids by varying the bulk density of a fluid separating medium},
author = {Peterson, Palmer L and Duffy, James B and Tokarz, Richard D},
abstractNote = {A method and apparatus for separating objects having a density greater than a selected density value from objects having a density less than said selected density value. The method typically comprises: (a) providing a separation vessel having an upper and lower portion, said vessel containing a liquid having a density exceeding said selected density value; (b) reducing the apparent density of the liquid to said selected density value by introducing solid, bubble-like bodies having a density less than that of the liquid into the lower portion of the vessel and permitting them to rise therethrough; (c) introducing the objects to be separated into the separation vessel and permitting the objects having a density greater than the apparent density of the liquid to sink to the lower portion of the vessel, while the objects having a density less than said selected density value float in the upper portion of the vessel; and (d) separately removing the higher density objects in the lower portion and the lower density objects in the upper portion from the separation vessel. The apparatus typically comprises: (a) a vessel containing a liquid having a density such that at least part of said objects having a density exceeding said selected density value will float therein; (b) means to place said objects into said vessel; (c) means to reduce the effective density of at least a portion of said liquid to said selected density value, whereby said objects having a density exceeding said selected density value sink into said liquid and said objects having a density less than said selected density value remain afloat, said means to adjust the effective density comprising solid, bubble-like bodies having a density less than said selected density value and means for introducing said bodies into said liquid; and (d) means for separately removing said objects having a density exceeding said selected density value and said objects having a density less than said selected density value from said vessel.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 1978},
month = {Sun Jan 01 00:00:00 EST 1978}
}