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  2. Perkin triangle - Wikipedia

    en.wikipedia.org/wiki/Perkin_triangle

    The solvent can be allowed to reflux over a drying agent housed in the still pot (shown as 2 in the figure) for a suitable time to dry solvent. The collecting tap (shown as 5 in the figure) can then be opened to collect the solvent in a Schlenk flask for storage. Depending on the boiling point of the solvent, a vacuum can be applied.

  3. Reflux - Wikipedia

    en.wikipedia.org/wiki/Reflux

    The purpose is to thermally accelerate the reaction by conducting it at an elevated, controlled temperature (i.e. the solvent's boiling point) and ambient pressure without losing large quantities of the mixture. [6] The diagram shows a typical reflux apparatus. It includes a water bath to indirectly heat the mixture.

  4. Vacuum distillation - Wikipedia

    en.wikipedia.org/wiki/Vacuum_distillation

    Vacuum distillation or distillation under reduced pressure is a type of distillation performed under reduced pressure, which allows the purification of compounds not readily distilled at ambient pressures or simply to save time or energy. This technique separates compounds based on differences in their boiling points.

  5. Short-path distillation - Wikipedia

    en.wikipedia.org/wiki/Short-path_distillation

    Short-path distillation is a distillation technique that involves the distillate traveling a short distance, often only a few centimeters, and is normally done at reduced pressure. [ 1 ] [ 2 ] Short-path distillation systems often have a variety of names depending on the manufacturer of the system and what compounds are being distilled within them.

  6. Distillation - Wikipedia

    en.wikipedia.org/wiki/Distillation

    The azeotrope is easily broken in a distillation set-up by using a liquid–liquid separator (a decanter) to separate the two liquid layers that are condensed overhead. Only one of the two liquid layers is refluxed to the distillation set-up. High boiling azeotropes, such as a 20 percent by weight mixture of hydrochloric acid in water, also ...

  7. Schlenk line - Wikipedia

    en.wikipedia.org/wiki/Schlenk_line

    The inert-gas line is vented through an oil bubbler, while solvent vapors and gaseous reaction products are prevented from contaminating the vacuum pump by a liquid-nitrogen or dry-ice/acetone cold trap. Special stopcocks or Teflon taps allow vacuum or inert gas to be selected without the need for placing the sample on a separate line. [3]

  8. Modeling and simulation of batch distillation unit - Wikipedia

    en.wikipedia.org/wiki/Modeling_and_simulation_of...

    Configuring settings –types of global unit used – METCBR; Running the simulation; Viewing the result- check streams result or steam table obtain from the running the simulation (figure 3) Similarly we can do simulation for other distillation column like fractional distillation by using Redfrac model from model library present in the software.

  9. Supercritical fluid extraction - Wikipedia

    en.wikipedia.org/wiki/Supercritical_fluid_extraction

    The pressure in the system must be maintained from the pump right through the pressure vessel. In smaller systems (up to about 10 mL / min) a simple restrictor can be used. This can be either a capillary tube cut to length, or a needle valve which can be adjusted to maintain pressure at different flow rates.

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