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METAL GRADING [3 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2010-06-02

English

Subject field(s)
  • Farm Equipment
DEF

An instrument or device used for obtaining representative grain samples. It usually is made of metal and consists of two tubes from six ins. to eight ft. in length. These tubes are slotted on the sides, and one is closely fitted but freely moving within the other. When closed this instrument may be inserted in a bag or bin of grain and then opened to admit a representative sample from each and every layer of the grain. After filling the trier is closed and withdrawn and the sample discharged upon an examination cloth for inspection or grading.

French

Domaine(s)
  • Matériel agricole

Spanish

Campo(s) temático(s)
  • Maquinaria agrícola
CONT

Los muestreos de las semillas almacenadas no son difíciles de hacer [...] estas semillas deben proceder de diferentes costales y de cada uno de ellos deben extraerse pequeñas porciones de semillas ya sea con la mano o con un aparato especial llamado muestreador de granos.

Save record 1

Record 2 2006-10-25

English

Subject field(s)
  • Processing of Mineral Products
  • Mineral Processing (Metallurgy)
DEF

Enriched ore after removal of waste in beneficiation mill.

CONT

Ore dressing. Treatment of ores to concentrate their valuable constituents (minerals) into products (concentrate) of smaller bulk, and simultaneously to collect the worthless material (gangue) into discardable waste (tailing).

CONT

Mines commonly possess mineral dressing plants in which the raw ore is milled before the separation of the ore minerals from the gangue minerals by various processes, which provide ore concentrates, and tailings which are made up of gangue.

CONT

... the Eldorado mine at Port Radium produced, from 1938 to 1960, about 6000 t of uranium metal in concentrates... from ores grading between 0. 3 and 0. 6% U.

PHR

Mineral concentrate.

French

Domaine(s)
  • Préparation des produits miniers
  • Minéralurgie (Métallurgie)
DEF

Minerai concentré, par préparation physique ou chimique, à teneur marchande.

CONT

La préparation du minerai comprend les opérations par lesquelles, à partir d'un minerai et à travers des procédés physiques ou chimico-physiques, on extrait plusieurs produits contenant les espèces minéralogiques utiles (concentré de minerai) et on élimine les espèces inutiles ou nuisibles (gangue stérile).

CONT

[...] le minerai enrichi est concassé, broyé, lavé, traité [...] Les concentrés obtenus sont ensuite fondus pour donner finalement le métal pur.

CONT

Le concentré d'uranium, obtenu par traitement chimique contient environ 60 à 70 % d'uranium.

PHR

Concentré de minéraux.

Spanish

Campo(s) temático(s)
  • Preparación de los productos mineros
  • Explotación de minerales (Metalurgia)
Save record 2

Record 3 - external organization data 2005-05-31

English

Subject field(s)
  • Chemistry
  • Radioactive Ores (Mining)
  • Compartment - Canadian Nuclear Safety Commission
CONT

Uranium metal is heavy, silvery white, malleable, ductile, and softer than steel. It is one of the densest materials known ... it is subject to surface oxidation. Uranium metal powder or chips will ignite spontaneously in air at ambient temperature.

CONT

... the Eldorado mine at Port Radium produced, from 1938 to 1960, about 6000 t of uranium metal in concentrates... from ores grading between 0. 3 and 0. 6% U.

French

Domaine(s)
  • Chimie
  • Minerais radioactifs (Mines métalliques)
  • Tiroir - Commission canadienne de sûreté nucléaire
CONT

[...] de 1938 à 1960, la mine Eldorado à Port Radium a produit environ 6 000 tonnes (t) d'uranium métallique sous forme de concentrés [...] à partir de minerais titrant de 0,3 à 0,6 % de U.

CONT

L'uranium métal est fortement électropositif et très réactif avec l'oxygène. Sous forme de fines particules, l'uranium est très pyrophorique à température ambiante et s'enflamme spontanément à quelques centaines de degrés lorsqu'il est sous la forme de fragments métalliques.

Spanish

Save record 3

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