TERMIUM Plus^®

Fiche 1,  Justifications,  Anglais

Record number: 1, Textual support number: 1 DEF

The column length divided by theoretical plate number.  3, fiche 1, Anglais, - height%20equivalent%20to%20a%20theoretical%20plate

Fiche 1,  Justifications,  Français

Record number: 1, Textual support number: 1 DEF

Longueur de la colonne divisée par le nombre de plateaux théoriques.  3, fiche 1, Français, - hauteur%20%C3%A9quivalente%20%C3%A0%20un%20plateau%20th%C3%A9orique

Fiche 1,  Justifications,  Espagnol

Fiche 2,  Justifications,  Anglais

Record number: 2, Textual support number: 1 DEF

A distillation column plate or tray that produces perfect distillation (that is, produces the same difference in composition as that existing between a liquid mixture and the vapor in equilibrium with it).  2, fiche 2, Anglais, - theoretical%20plate

Record number: 2, Textual support number: 2 DEF

Theoretical element of a distillation column in which the escaping vapour is in thermodynamic equilibrium with the related liquid. [Definition standardized by ISO.]  3, fiche 2, Anglais, - theoretical%20plate

Record number: 2, Textual support number: 1 CONT

The packed-column equivalent of a theoretical plate is the HETP, or the height(of packing) equivalent to a theoretical plate.  2, fiche 2, Anglais, - theoretical%20plate

Record number: 2, Textual support number: 1 OBS

theoretical plate : term standardized by ISO.  4, fiche 2, Anglais, - theoretical%20plate

Fiche 2,  Justifications,  Français

Record number: 2, Textual support number: 1 DEF

Élément théorique de colonne de distillation dans lequel la vapeur qui s'échappe est en équilibre thermodynamique avec le liquide correspondant. [Définition normalisée par l'ISO.]  3, fiche 2, Français, - plateau%20th%C3%A9orique

Record number: 2, Textual support number: 1 CONT

On définit, comme en distillation, la longueur équivalente à un plateau théorique: celle d'une colonne suffisante pour que la phase mobile en sorte en équilibre avec la phase fixe. D'un ordre de grandeur comparable à celui de quelques grains de phase fixe, c'est une valeur expérimentale [...]  4, fiche 2, Français, - plateau%20th%C3%A9orique

Record number: 2, Textual support number: 1 OBS

Notion utilisée pour la séparation de 2 ou plusieurs liquides quand les plateaux d'une colonne sont remplacés par une substance de remplissage [...]. Elle permet de prévoir le rendement de cette colonne.  5, fiche 2, Français, - plateau%20th%C3%A9orique

Record number: 2, Textual support number: 2 OBS

plateau théorique : terme normalisé par l'ISO.  6, fiche 2, Français, - plateau%20th%C3%A9orique

Fiche 2,  Justifications,  Espagnol

Record number: 2, Textual support number: 1 DEF

Unidad de la columna [de destilación] que tiene la misma eficacia en la separación que una destilación simple.  1, fiche 2, Espagnol, - plato%20te%C3%B3rico

Record number: 2, Textual support number: 1 OBS

Se expresa a menudo en centímetros de altura de la columna.  1, fiche 2, Espagnol, - plato%20te%C3%B3rico

Fiche 3,  Justifications,  Anglais

Record number: 3, Textual support number: 1 DEF

A still for fractional distillation.  2, fiche 3, Anglais, - distillation%20column

Record number: 3, Textual support number: 1 CONT

These boxes can be considered representative of the height equivalent to a theoretical plate(HETP), which is a concept originating with distillation(to describe the ability of a distillation column to separate substances having different boiling points).  3, fiche 3, Anglais, - distillation%20column

Fiche 3,  Justifications,  Français

Fiche 3,  Justifications,  Espagnol

Fiche 4,  Justifications,  Anglais

Record number: 4, Textual support number: 1 DEF

The column length divided by the effective theoretical plate number.  1, fiche 4, Anglais, - Height%20equivalent%20to%20an%20effective%20theoretical%20plate

Fiche 4,  Justifications,  Français

Record number: 4, Textual support number: 1 DEF

Longueur de la colonne divisée par le nombre de plateaux théoriques effectifs.  1, fiche 4, Français, - hauteur%20%C3%A9quivalente%20%C3%A0%20un%20plateau%20th%C3%A9orique%20effectif

Fiche 4,  Justifications,  Espagnol

Fiche 5,  Justifications,  Anglais

Record number: 5, Textual support number: 1 DEF

In gas chromatography, the theory that the column operated similarly to a distillation column; for example, chromatographic columns are considered as consisting of a number of theoretical plates, each performing a partial separation of components.  2, fiche 5, Anglais, - plate%20theory

Record number: 5, Textual support number: 1 OBS

The plate concept of chromatography is inherited from distillation theory, where originally the more efficient distillation columns actually contained discrete plates. Martin and Synge considered a chromatographic system to be composed of a number of imaginary or theoretical plates. However, the number of theoretical plates that a column appears to contain is a poor measure of chromatographic performance since the number of plates is independent of the system dimensions.  3, fiche 5, Anglais, - plate%20theory

Record number: 5, Textual support number: 1 PHR

discrete plate  3, fiche 5, Anglais, - plate%20theory

Fiche 5,  Justifications,  Français

Fiche 5,  Justifications,  Espagnol

Fiche 6,  Justifications,  Anglais

Record number: 6, Textual support number: 1 OBS

In distillation process, the trays are at different temperatures and their function is the transfer of both mass and heat. At each tray, the rising vapor is warmer than the falling liquid and the tray temperature is somewhere in between. The temperature of the tray is at the boiling point of the liquid on the tray. ... Distillation tray efficiencies are a measure of the physical equilibrium attained on the tray between the liquid and the vapors. The efficiencies normally range from 50 to 80%.  1, fiche 6, Anglais, - distillation%20tray%20efficiency

Record number: 6, Textual support number: 2 OBS

Plate efficiency : This term is used to express the relationship between the performance of an actual plate and a theoretical plate. Many definitions have been given for plate efficiency, but the simplest to use is the overall column efficiency which is the ratio of the number of theoretical plates required for a given separation divided by the actual number of plates needed.  2, fiche 6, Anglais, - distillation%20tray%20efficiency

Fiche 6,  Justifications,  Français

Record number: 6, Textual support number: 1 OBS

Évaluation de l'efficacité d'un plateau. Efficacité locale : On considère dans une colonne en état de régime stable le plateau de rang n [...] Ce plateau reçoit une vapeur de composition y^n-1.  1, fiche 6, Français, - efficacit%C3%A9%20du%20plateau%20de%20distillation

Fiche 6,  Justifications,  Espagnol