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GOLD RECOVERY [17 records]

Record 1 2018-02-21

English

Subject field(s)
  • Mining Operations
CONT

After crushing and grinding, gold recovery could be completed using a combination of flotation, oxidation, and leaching processes. The optimal process and combination needs to be evaluated with pre-feasibility studies and engineering. The leach circuit could be either carbon-in-pulp(CIP) or carbon-in-leach(CIL) followed by an adsorption-desorption-recovery(ADR) plant to generate a gold bullion product.

French

Domaine(s)
  • Exploitation minière

Spanish

Save record 1

Record 2 2013-11-19

English

Subject field(s)
  • Processing of Mineral Products
DEF

A process whereby gold is extracted by heaping broken ore on sloping impermeable pads and continually applying to the heaps a weak cyanide solution which dissolves the contained gold.

OBS

The gold-laden solution is then collected for gold recovery.

French

Domaine(s)
  • Préparation des produits miniers
DEF

Procédé d'extraction de l'or où le minerai concassé est posé sur une cellule imperméable légèrement inclinée et est lessivé de façon continue par une solution diluée de cyanure qui dissout l'or contenu [...]

OBS

[...] la solution enrichie en or est ensuite recueillie et l'or, récupéré.

Spanish

Save record 2

Record 3 2001-08-22

English

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

To enhance the mine, we are not doubling the capacity; we are also making major technological improvements, by installing a semi-autogenous mill facility and a carbon-in-pulp process which will increase gold recovery from the ore.

OBS

Compare with "autogenous (grinding) mill."

French

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

[...] l'Applied Carbon Technology Inc., maintenant propriété de la Stratmin Inc., a installé sa nouvelle usine de broyage semi-autogène à sa mine de graphite près de Kearney [...]

OBS

Voir aussi «broyeur semi-autogène».

Spanish

Save record 3

Record 4 2000-10-11

English

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

Circular vibrating screens improve recovery of gold & silver.

French

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

Spanish

Save record 4

Record 5 1994-04-19

English

Subject field(s)
  • Extraction Procedures - Various (Mining)
DEF

The recovery of coal or ore from a mine, or part of a mine, that has been abandoned because of fire, water, or other cause.

CONT

Index of mining technology projects... Hydraulic reclamation of 10, 000 tons per day of frozen tailings for the recovery of gold by the carbon-in-leach(CIL) process.

French

Domaine(s)
  • Procédés d'extraction divers (Exploit. minière)
CONT

Répertoires de projets en technologie minière [...] Récupération hydraulique de 10 000 tpj [tonnes par jour] de résidus congelés pour la récupération d'or par le procédé de lixiviation au carbone (CIL).

Spanish

Save record 5

Record 6 1994-04-19

English

Subject field(s)
  • Mining Wastes
CONT

Index of mining technology projects... Hydraulic reclamation of 10, 000 tons per day of frozen tailings for the recovery of gold by the carbon-in-leach(CIL) process.

OBS

Reclamation: The recovery of coal or ore from a mine, or part of a mine, that has been abandoned because of fire, water, or other cause.

OBS

Tailings: Those portions of washed ore that are regarded as too poor to be treated further; used especially of the debris from stamp mills or other ore-dressing machinery, as distinguished from material (concentrates) that is to be smelted.

OBS

The term tailings as used in the mineral industry is used in the plural form.

French

Domaine(s)
  • Déchets miniers
CONT

Répertoires de projets en technologie minière [...] Récupération hydraulique de 10 000 tpj [tonnes par jour] de résidus congelés pour la récupération d'or par le procédé de lixiviation au carbone (CIL).

Spanish

Save record 6

Record 7 1994-04-19

English

Subject field(s)
  • Processing of Mineral Products
CONT

Index of mining technology projects... Hydraulic reclamation of 10, 000 tonnes per day of frozen tailings for the recovery of gold by the carbon-in-leach(CIL) process.

CONT

Test work has shown that conversion to a carbon-in-leach (CIL) process would improve mill recoveries from the mid 80% to the low 90% level.

French

Domaine(s)
  • Préparation des produits miniers
CONT

Répertoire de projets en technologie minière [...] Récupération hydraulique de 10 000 tpj [tonnes par jour] de résidus congelés pour la récupération d'or par le procédé de lixiviation au carbone (CIL).

Spanish

Save record 7

Record 8 1994-04-19

English

Subject field(s)
  • Extraction Procedures - Various (Mining)
CONT

Index of mining technology projects... Hydraulic reclamation of 10, 000 tons per day of frozen tailings for the recovery of gold by the carbon-in-leach(CIL) process.

OBS

Reclamation: The recovery of coal or ore from a mine, or part of a mine, that has been abandoned because of fire, water, or other cause.

French

Domaine(s)
  • Procédés d'extraction divers (Exploit. minière)
CONT

Répertoires de projets en technologie minière [...] Récupération hydraulique de 10 000 tpj [tonnes par jour] de résidus congelés pour la récupération d'or par le procédé de lixiviation au carbone (CIL).

Spanish

Save record 8

Record 9 1991-10-24

English

Subject field(s)
  • Stock Exchange
  • Investment
CONT

All metals charts show downward movements over the past 5 years, with the movements of gold and silver most extreme. In part, these movements can be attributed to the world business cycle, but observers have been puzzled by the lack of recovery in metals prices.

Key term(s)
  • downward swing

French

Domaine(s)
  • Bourse
  • Investissements et placements
CONT

La situation financière de Numac est relativement saine et selon la maison Lévesque, Beaubien, le titre qui, au moment de l'étude s'échangeait à $7,25, devrait avoir terminé son mouvement baissier.

Spanish

Save record 9

Record 10 1990-04-27

English

Subject field(s)
  • Preparatory Mining Work
DEF

In metal mining, one who drives steam or water points(specially made pipe with a chisel bit at one end) into the frozen ground of a placer deposit in advance of dredging operations, to thaw the ground so that it can be worked by the dredge for recovery of the gold.

French

Domaine(s)
  • Travaux préparatoires (Exploitation minière)
OBS

Si le gravier est congelé, on doit le dégeler avant l'extraction. A cette fin, on se sert de vapeur d'eau chaude ou d'eau froide, injectée dans le gravier au moyen d'ajutage ou de tuyaux à pointes.

Spanish

Save record 10

Record 11 1990-04-27

English

Subject field(s)
  • Preparatory Mining Work
  • Mining Equipment and Tools
DEF

A device or machine to drive thawing points into the frozen ground to thaw it so it can be worked.

OBS

thawing point driver : In metal mining, one who drives steam or water points(specially made pipe with a chisel bit at one end) into the frozen ground of a placer deposit in advance of dredging operations, to thaw the ground so that it can be worked by the dredge for recovery of the gold.

French

Domaine(s)
  • Travaux préparatoires (Exploitation minière)
  • Outillage et équipement (Exploitation minière)
OBS

Si le gravier est congelé, on doit le dégeler avant l'extraction. A cette fin, on se sert de vapeur d'eau chaude ou d'eau froide, injectée dans le gravier au moyen d'ajutages ou de tuyaux à pointes.

Spanish

Save record 11

Record 12 1990-04-26

English

Subject field(s)
  • Preparatory Mining Work
  • Mining Equipment and Tools
CONT

thawing point driver : In metal mining, one who drives steam or water points(specially made pipe with a chisel bit at one end) into the frozen ground of a placer deposit in advance of dredging operations, to thaw the ground so that it can be worked by the dredge for recovery of the gold.

French

Domaine(s)
  • Travaux préparatoires (Exploitation minière)
  • Outillage et équipement (Exploitation minière)
OBS

Si le gravier est congelé, on doit le dégeler avant l'extraction. A cette fin, on se sert de vapeur d'eau chaude ou d'eau froide, injectée dans le gravier au moyen d'ajutages ou de tuyaux à pointes.

Spanish

Save record 12

Record 13 1990-04-26

English

Subject field(s)
  • Preparatory Mining Work
  • Mining Equipment and Tools
CONT

thawing point driver : In metal mining, one who drives steam or water points(specially made pipe with a chisel bit at one end) into the frozen ground of a placer deposit in advance of dredging operations, to thaw the ground so that it can be worked by the dredge for recovery of the gold.

French

Domaine(s)
  • Travaux préparatoires (Exploitation minière)
  • Outillage et équipement (Exploitation minière)
OBS

Si le gravier est congelé, on doit le dégeler avant l'extraction. A cette fin, on se sert de vapeur d'eau chaude ou d'eau froide, injectée dans le gravier au moyen d'ajutages ou de tuyaux à pointes.

Spanish

Save record 13

Record 14 1990-04-26

English

Subject field(s)
  • Mining Equipment and Tools
  • Preparatory Mining Work
DEF

A drivepipe through which steam or water is introduced into frozen gravel to thaw it for mining or dredging.

CONT

thawing point driver : In metal mining, one who drives steam or water points(specially made pipe with a chisel bit at one end) into the frozen ground of a placer deposit in advance of dredging operations, to thaw the ground so that it can be worked by the dredge for recovery of the gold.

French

Domaine(s)
  • Outillage et équipement (Exploitation minière)
  • Travaux préparatoires (Exploitation minière)
CONT

Si le gravier est congelé, on doit le dégeler avant l'extraction. À cette fin, on se sert de vapeur d'eau chaude ou d'eau froide, injectée dans le gravier au moyen d'ajutages ou de tuyaux à pointes.

Spanish

Save record 14

Record 15 1988-05-31

English

Subject field(s)
  • Processing of Mineral Products
CONT

To enhance the mine, we are not doubling the capacity; we are also making major technological improvements, by installing a semi-autogenous mill facility and a carbon-in-pulp process which will increase gold recovery from the ore.

French

Domaine(s)
  • Préparation des produits miniers

Spanish

Save record 15

Record 16 1983-08-23

English

Subject field(s)
  • Precious Metals (Metallurgy)
DEF

In the recovery of precious metals, the separation of silver from gold.

DEF

The final process after cupellation to remove the silver from the bullion bead.

French

Domaine(s)
  • Métaux précieux (Métallurgie)
OBS

Enlevé périodiquement, l'alliage enrichi sera coulé en lingots et traité par distillation (1 400 °C); les produits volatilisés: zinc et poudre bleue sont réutilisés ou retraités, le plomb enrichi et les crasses sont coupellés; on obtient un doré qu'on sépare électrolytiquement en argent et en or et des scories qui seront réincorporées dans le lit de fusion du water-jacket.

Spanish

Save record 16

Record 17 1983-08-23

English

Subject field(s)
  • Precious Metals (Metallurgy)
OBS

parting : In the recovery of precious metals, the separation of silver from gold.

French

Domaine(s)
  • Métaux précieux (Métallurgie)
OBS

Installation où l'on sépare l'or et l'argent dans un alliage.

Spanish

Save record 17

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