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2. Soxhlet extractor - Wikipedia

   en.wikipedia.org/wiki/Soxhlet_extractor

   A Soxhlet extractor is a piece of laboratory apparatus [ 1 ] invented in 1879 by Franz von Soxhlet. [ 2 ] It was originally designed for the extraction of a lipid from a solid material. Typically, Soxhlet extraction is used when the desired compound has a limited solubility in a solvent, and the impurity is insoluble in that solvent.

3. Extraction of petroleum - Wikipedia

   en.wikipedia.org/wiki/Extraction_of_petroleum

   Petroleum is mostly recovered from oil drilling. Seismic surveys and other methods are used to locate oil reservoirs. Oil rigs and oil platforms are used to drill long holes into the earth to create an oil well and extract petroleum. After extraction, oil is refined to make gasoline and other products such as tires and refrigerators.

4. Supercritical fluid extraction - Wikipedia

   en.wikipedia.org/wiki/Supercritical_fluid_extraction

   Supercritical fluid extraction (SFE) is the process of separating one component (the extractant) from another (the matrix) using supercritical fluids as the extracting solvent. Extraction is usually from a solid matrix, but can also be from liquids. SFE can be used as a sample preparation step for analytical purposes, or on a larger scale to ...

5. Olive oil extraction - Wikipedia

   en.wikipedia.org/wiki/Olive_oil_extraction

   Olive oil extraction. An olive mill and an olive press from the Byzantine period in Capernaum. Olive press in Jerash, Jordan (20th-century) Frail (pressing basket), used in pressing the olive pulp. Olive oil extraction is the process of extracting the olive oil present in olive drupes. Olive oil is produced in the mesocarp cells, and stored in ...

6. Pumpjack - Wikipedia

   en.wikipedia.org/wiki/Pumpjack

   A pumpjack is the overground drive for a reciprocating piston pump in an oil well. [ 1 ] It is used to mechanically lift liquid out of the well if there is not enough bottom hole pressure for the liquid to flow all the way to the surface. The arrangement is often used for onshore wells. Pumpjacks are common in oil-rich areas.

7. Expeller pressing - Wikipedia

   en.wikipedia.org/wiki/Expeller_pressing

   Expeller pressing (also called oil pressing) is a mechanical method for extracting oil from raw materials. The raw materials are squeezed under high pressure in a single step. When used for the extraction of food oils, typical raw materials are nuts, seeds and algae, which are supplied to the press in a continuous feed. As the raw material is ...