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FRACTIONAL PROCESS [5 records]

Record 1 2001-12-28

English

Subject field(s)
  • Chemistry
  • Paints and Varnishes (Industries)
DEF

Turpentine obtained by fractional distillation from the condensate of the digester relief gases in the pulping of Pine wood by the sulfate process.

OBS

sulphate turpentine: term used in the Commonwealth.

French

Domaine(s)
  • Chimie
  • Peintures et vernis (Industries)
DEF

Essence de bois obtenue par distillation fractionnée des produits de condensation des vapeurs qui proviennent du lessiveur dans la fabrication de pâte de bois de pin par le procédé au sulphate.

Spanish

Campo(s) temático(s)
  • Química
  • Pinturas y barnices (Industrias)
Save record 1

Record 2 2001-06-28

English

Subject field(s)
  • Aluminum Production
CONT

The Toth Process consists of exchange relation between aluminum chloride and manganese. Bauxite mixed with carbon is chlorinated through fractional condensation and purification to form aluminum chloride. The aluminum chloride reacts with manganese to produce aluminum.

French

Domaine(s)
  • Production de l'aluminium
DEF

Traitement chimique de l'argile pour en extraire l'aluminium.

CONT

Plusieurs métallurgistes considèrent déjà le procédé Toth, du nom de son inventeur, comme le premier progrès dans le domaine de la métallurgie de l'aluminium depuis près de 100 ans.

Spanish

Save record 2

Record 3 2000-10-25

English

Subject field(s)
  • Petroleum Distillation
DEF

Fractionation process, closely related to distillation by which undesired volatile components are separated from a liquid mixture by fractional evaporation. [Definition standardized by ISO. ]

OBS

Stripping is generally effected by the introduction of steam, by the reduction of pressure, by the vapour generated in a reboiler or a combination of these.

OBS

stripping: term standardized by ISO.

French

Domaine(s)
  • Distillation du pétrole
DEF

Procédé de fractionnement étroitement lié à la distillation par lequel les composés volatils indésirables sont séparés d'un mélange liquide par une évaporation fractionnée. [Définition normalisée par l'ISO.]

OBS

Le balayage est généralement réalisé par introduction de vapeur, par réduction de la pression, par la vapeur générée dans un rebouilleur ou par la combinaison de l'ensemble.

OBS

balayage à la vapeur : terme normalisé par l'ISO.

Spanish

Save record 3

Record 4 1999-04-14

English

Subject field(s)
  • Geology
DEF

A process of magmatic differentiation wherein a magma, having crystallized to a mush of interlocking crystals in liquid, is compressed by Earth movements and the liquid moves toward regions of lower pressure, thus becoming separated from the crystals.

CONT

Fractional crystallization... includes any mechanical process by which early-formed crystals are prevented from equilibrating with the melt from which they grew. The important processes are gravity fractionation, flowage differentiation, filter pressing and dilatation...

French

Domaine(s)
  • Géologie
CONT

Les liquides subsistant à la suite de l'élimination d'une proportion plus ou moins grande de tels ou tels cristaux, à un stade plus ou moins tardif de l'évolution, pourront [...] avoir des compositions diverses à partir d'un même liquide initial. On dira qu'ils se sont différenciés à partir de ce liquide. Les processus les plus usuels de telles séparations sont la décantation de minéraux lourds, ou bien l'effet de «filtre-presse» qui élimine sous l'influence de pressions tectoniques le liquide d'un agrégat de cristaux imprégnés par ce liquide.

Spanish

Save record 4

Record 5 1999-03-05

English

Subject field(s)
  • Rubber
CONT

Pre-coagulated crepe. This is the most pure form of natural rubber and is prepared from field latex under controlled conditions, which includes removal of the undesired colouring matter present in latex through the process of fractional coagulation.

French

Domaine(s)
  • Caoutchouc

Spanish

Campo(s) temático(s)
  • Caucho
Save record 5

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