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Jul 15, 2015

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Bushra Nawaz
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Extraction of Gold from Placer and Ore deposits using Amalgamation and Cyanidation.

Group Members:

• Muhammad ali

• Taj afsar

• Bushra Nawaz

• Hanifullah

Project Supervisor: Engr.Nisar Muhammad

Department Of Mining Engineering

University Of Engineering & Technology Peshawar

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Outline

• Gold

• Gold uses

• Gold properties

• Impurities

• Gold Deposits in Pakistan

• Aims & Objectives

• Methodology

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Gold

• One of the most important and expensive metals

• Occurs in native form

• Pakistan has 5th largest gold deposit in world

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Gold It exist in 2 forms:

Ore form Placer deposit

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Uses:

• Jewelry(78%)

• As a Medium of Exchange

• Electrical-electronic applications

• Dentistry

• The aircraft-aerospace industry

• The arts

• Medical

• Medals and Awards

• Glassmaking

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Properties:

• Metallic luster

• Specific gravity or density is 19.3

• Density is 16 to 18

• Hardness of a penny

• Chemically inert

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List of Countries by Gold Production

2013:

Rank Country/RegionGold production (Metric Tons) in 2013

World 2,770

1 China 420

2 Australia 255

3 United States 227

4 Russia 220

5 Peru 150

6 South Africa 145

7 Canada 120

8 Mexico 100

9 Uzbekistan 93

10 Ghana 85

11 Brazil 75

12 Papua New Guinea 62

13 Indonesia 60

14 Chile 55

Rest of the world 700

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Impurities associated with gold:

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Gold deposits in Pakistan

1. Placer deposits of Pakistan extend throughout the country from Northern Areas to the Arabian sea

2. Gold occurs in Pakistan in both placer and rock deposits.

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Gold deposits in Pakistan (contd.)Major gold deposits are :

• Reko diq

• Chitral

• Saindak

• Gilgit(river indus)

• Jhangera(river Kabul)

• Arabian sea

In our project we will work on Jhangera and Chitral Gold ore

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Aims & Objectives

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MethodologyOre Sample Placer deposit

Report writing

Gold

Cyanidation

Concentrate

Flotation

Shaking Table

Grinding

Crushing

Transportation of material

Report writing

Gold

Cyanidation

Concentrate

Amalgamation

Shaking Table

Removal of coarse material

Transportation of material

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Questions

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Thank youGod bless you all

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