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GOLD AMALGAM [6 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2016-12-13

English

Subject field(s)
  • Conservative Dentistry
  • Special-Language Phraseology
CONT

The placement of a dental filling is a process by which a chipped tooth, or an area of tooth damaged by tooth decay (cavities), is restored with a hard substance.

OBS

The most common materials for restoring(or filling) teeth are amalgam(sometimes called silver), composite resin(sometimes called plastic or white), gold, ceramic and glass ionomer.

French

Domaine(s)
  • Dentisterie conservatrice
  • Phraséologie des langues de spécialité
CONT

Les matériaux les plus fréquents pour restaurer (ou obturer) les dents sont l'amalgame (parfois appelé amalgame d'argent), la résine composite (parfois appelée résine plastique ou blanche), l'or, la céramique et l'ionomère de verre.

Spanish

Save record 1

Record 2 2011-07-15

English

Subject field(s)
  • Mineralogy
  • Gold and Silver Mining
DEF

A variety of native gold containing mercury and silver, with gold averaging approximately about 40% commonly associated with platinum in yellowish-white grains that crumble easily.

OBS

gold amalgam : Former spelling of goldamalgam.

French

Domaine(s)
  • Minéralogie
  • Mines d'or et d'argent
DEF

Variété d'or natif contenant du mercure.

CONT

Quelquefois, on retrouvera [l'or natif] associé au mercure en «auramalgame», comme c'est le cas en certains gîtes de Colombie.

Spanish

Campo(s) temático(s)
  • Mineralogía
  • Minas de oro y de plata
CONT

La amalgama de oro, que se encuentra en Colombia, en California y Australia, suele contener, además del mercurio y del oro, un poco de plata.

Save record 2

Record 3 2010-08-20

English

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

... a method to extract gold and silver from ores.

CONT

Several metallurgical processes are used to extract silver from ores of other metals. In the amalgamation process, liquid mercury, which forms an amalgam with the silver, is added to the crushed ore. After the amalgam is washed out of the ore the mercury is removed by distillation, leaving metallic silver.

OBS

The ore is crushed and treated with mercury, in which the metal dissolves. The amalgam is heated and the mercury evaporates, leaving pure gold or silver. The process has been criticized as an environmental and occupational threat due to the extreme toxicity of mercury.

French

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

Procédé d'extraction des métaux précieux et en particulier de l'or natif, contenu dans le minerai.

OBS

Le minerai finement broyé et mis en pulpe passe sur une couche de mercure pour former un amalgame. Cet amalgame donne, après un procédé pyrométallurgique, l'or et l'argent sous forme libre.

OBS

À cause de son effet néfaste sur l'environnement et de son taux de récupération relativement bas, le procédé d'amalgamation a été remplacé par la cyanuration.

Spanish

Campo(s) temático(s)
  • Preparación de los productos mineros
  • Explotación de minerales (Metalurgia)
DEF

Operación consistente en amalgamar el mercurio con un metal.

CONT

La amalgamación industrial puede tener uno de los dos objetos siguientes: extraer el oro o la plata de su ganga; combinar el mercurio con otro metal para formar una aleación.

Save record 3

Record 4 2002-01-24

English

Subject field(s)
  • Geochemistry
  • Processing of Mineral Products
  • Environmental Studies and Analyses
CONT

Most gold and silver mines in Canada prior to 1900 used the mercury amalgam process to separate gold or silver from the ore. An estimated 513 such mines existed in Canada at the turn of the century. Extensive leaching of mercury from tailings from these mines could occur and enter neighbouring water systems producing considerable elevation of the mercury levels in the aquatic ecosystem.

French

Domaine(s)
  • Géochimie
  • Préparation des produits miniers
  • Études et analyses environnementales
CONT

Altération et lessivage profond dans la Craie du sud-est du bassin de Paris.

CONT

Remblai de lixiviation profonde par cyanuration de la Goldields Ghana Ltée [...]

Spanish

Save record 4

Record 5 2001-08-01

English

Subject field(s)
  • Occupation Names (General)
  • Processing of Mineral Products
  • Mineral Processing (Metallurgy)
CONT

Amalgamator... Tends equipment that separates gold or silver from ground ore by mercury amalgamation process... Turns valves or opens gates to charge ground ore and mercury into rotating-type barrels or agitating-type tanks. Starts equipment and observes accumulation of amalgam. Discharges or drains barrel or tank to recover gold or silver amalgam.

French

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

Ouvrier qui charge le minerai et le mercure dans un tonneau ou un autre appareil amalgamateur.

OBS

Désigne également celui qui opère l'unité qui fait tourner le tonneau ou tout autre appareil servant à mélanger le minerai et le mercure.

Spanish

Save record 5

Record 6 1987-12-15

English

Subject field(s)
  • Goldsmithing and Silversmithing
DEF

An amalgam of gold and silver.

French

Domaine(s)
  • Orfèvrerie et argenterie
DEF

Argent doré principalement utilisé en orfèvrerie.

Spanish

Save record 6

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