UESLB Solid-Liquid Extraction Unit

SOLID-LIQUID EXTRACTION UNIT - UESLB

혁신적인 시스템

The Solid-Liquid Extraction Unit, "UELSB", allows a continuous solid-liquid process of extraction in countercurrent which is the most commonly used in industry because it is the one with the highest efficiency.

일반적인 설명보기

일반적인 설명

The Solid-Liquid Extraction Unit, "UESLB", is a laboratory-scale unit designed to study the separation of a soluble element from a solid in a continuous feed, multistage and countercurrent way, with the help of a solvent.

The unit utilises a continuous feed, counter current flow, multiple stage (but may also configured as one or two stage process for teaching purposes), rotary extractor system of the type frequently seen in industrial applications. The effects of temperature, multiple stages, and throughput rate can all be investigated.

The design of the unit is based on the continuous rotation extraction cell used in industrial scale, which is called ‘Rotocel’. This is the main part of the solid/liquid extraction system and it is divided into compartments. The raw material is fed into these compartments from the input hopper. The material is then passed under three solvent sprinklers, and the dissolved product captured in three drainage compartments. Pumps are provided to pump the product from the drainage compartment of one stage to the sprinkler of the next stage. At the end of the process the spent carrier material will go to a collection container.

The solid carrier can be a light porous material. It can be impregnated with a salt such as sodium bicarbonate or potassium bicarbonate, which is then extracted by the process.

연습 및 가이드

매뉴얼에 포함 된 가이드 실기 연습

  1. Demonstration of the operation of a continuous multiple stage process.
  2. Closed circuit percolation extraction (batch operation).
  3. Open loop percolation extraction (continuous operation).
  4. Investigation of one, two and three stage continuous processes.
  5. Investigation into effect of solvent temperatures.
  6. Investigation into effect of solvent flow rates.
  7. Investigation into effect of processing time.
  8. Process economics. Process efficiency.
  9. Mass balances.
  10. Influence of the particle size.
  11. Influence of the stages numbers.
  12. Influence of the solvent type.
  13. Extractions of inorganic and aqueous components.
  14. Test of extractions for industrial use.

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