TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

MILL HEAD [2 records]

Record 1 2006-10-26

English

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

mill head: Assay value, or units of value per ton, in ore accepted for treatment in a concentrating plant or mill.

DEF

mill head grade: Metal content of mined ore going into a mill for processing.

OBS

... expressed as troy ounces per ton or grams per tonne for precious metals and as a percentage for other metals.

CONT

In the first quarter of 2001, the head grade was averaging 95.33 g/t (2.78 oz/st) ...

CONT

The mill head grade was 319 g/tonne silver and the mill recovery rate was 88.71% ...

OBS

head: In mineral processing, the mill head, or grade of ore, accepted by the mill for treatment. Commonly used in the plural ["heads"].

Key term(s)
  • heads
  • grade of ore
  • ore grade

French

Domaine(s)
  • Préparation des produits miniers
  • Mines métalliques
  • Minéralurgie (Métallurgie)
CONT

[...] l'usine de la société a traité un total de 11 338 tonnes de minerai. Durant cette période, les teneurs moyennes du minerai traité à l'usine furent respectivement de 107 g/t Ag et 1,12 g/t Au.

OBS

[...] Glimmer Resources ont identifié à leur propriété aurifère Hislop Beatty un gisement de minerai d'une teneur de 11,14 g/t.

OBS

[...] gisements renfermant du minerai réfractaire de faible teneur titrant en or moins de 3,5 g/t [...]

OBS

En contexte de traduction, une phrase du type «the head grade was averaging 95 g/t» pourrait être traduite par «les teneurs moyennes du minerai traité ont été de 95 g/t» ou par «le minerai traité titrait en moyenne 95 g/t». Voir les contextes qui précèdent.

OBS

teneur : Contenu en métal d'un minerai, exprimé en %, g/t, etc. [en anglais : «grade»; en espagnol : «ley»; en allemand : «Gehalt».]

Spanish

Save record 1

Record 2 2001-08-22

English

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

Ore accepted for treatment in a concentrator, after any preliminary rejection such as waste removal.

OBS

Not to be confused with the second meaning of the term "mill head", that is the "assay value, or units of value per ton, in ore accepted for treatment in a concentrating plant or mill." See that other record in TERMIUM.

French

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

Spanish

Save record 2

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