elutriation

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elutriation

 [e-loo″tre-a´shun]
purification of a substance by dissolving it in a solvent and pouring off the solution, thus separating it from the undissolved foreign material.

e·lu·tion

(ē-lū'shŭn),
1. The separation, by washing, of one solid from another.
2. The removal, by means of a suitable solvent, of one material from another that is insoluble in that solvent, as in column chromatography.
3. The removal of antibodies absorbed onto the erythrocyte surface.
Synonym(s): elutriation
[L. e-luo, pp. lutus, to wash out]
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References in periodicals archive ?
He adds that nearly all systems work on the principle of degrees of separation that involve screens, air classification, float tanks and magnets as well as hand sorting.
Next, air classification removes textiles and PUR foam.
Subsequent integral air classification is said to allow precise product-size tailoring.
Countercurrent-flow air classification uses electromagnets to generate a magnetic flux field.
The RDF generation is a comprehensive scientific process which involves segregation of waste through different processing steps ranging from screening, air classification, ballistic separation, separation of ferrous and non-ferrous materials, glass and stones.
The Kason CAM 1300 air classifier mill provides impact grinding and air classification to produce fine grinds at rates up to 16.5 tons per hr.
The air classification process segregates the solder powder into different classes based on mass.
Air Classification: ISO Class 5 (EUGMP Grade A) all chambers Airflow Pattern: Single Pass Turbulent airflow to all chambers Number of Air 150 air changes/hr minimum all chambers Changes: normal operation 240 air changes/hr main chamber during aeration 400 air changes/hr transfer chamber during aeration Operating Pressure: Main Chamber +50Pa Transfer Hatch +35Pa Lighting Levels: 700lux within main chamber only Noise Levels: Less than 70dBA Temperature: Un controlled (Monitoring only) Humidity: Un controlled (Monitoring only) Inlet & Exhaust HEPA H14 grade filter having an efficiency of Filtration: 99.997% the test method used being a full face photometer leak test in accordance with PD6609, using a DOP test aerosol generated with a thermal generator.
A significant amount of these products are handled in conventional clean rooms, which are designed to provide a desired air classification. Table I: Operator Exposure Bands Classification.
This flour corresponds to the barley by-products and has been obtained by a healthy separation method such as the air classification.