发明名称 |
SEPARATION OF SOLIDS BY VARYING THE BULK DENSITY OF A FLUID SEPARATING MEDIUM |
摘要 |
<p>SEPARATION OF SOLIDS BY VARYING THE BULK DENSITY OF A FLUID SEPARATING MEDIUM 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.</p> |
申请公布号 |
CA1077890(A) |
申请公布日期 |
1980.05.20 |
申请号 |
CA19770291922 |
申请日期 |
1977.11.29 |
申请人 |
BATTELLE DEVELOPMENT CORPORATION |
发明人 |
PETERSON, PALMER L.;DUFFY, JAMES B.;TOKARZ, RICHARD D. |
分类号 |
B01J8/20;B01J8/22;B03B5/44;(IPC1-7):03B5/44 |
主分类号 |
B01J8/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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