- Gold is
recovered from industrial, dental, porcelain or jewellary scrap. For
refining, gold bearing alloys are processed on different methods,
depending on their carat content.
- Two methods are
commonly employed for purification: the Miller process and the Wohlwill
process.
- Alternatively,
it can be a complex mix of burning, drying, grinding, screening,
blending and sampling for low-grade scrap and floor sweepings. Whatever
the material, proper evaluation is key to arriving at a settlement that
is fair to both customer and refiner.
- The proportion
of gold in jewellary is measured on the carat (or karat) scale. The word
carat comes from the carob seed, which was originally used to balance
scales in Oriental bazaars. Pure gold is designated 24 carat, which
compares with the "fineness" by which bar gold is defined.
- The most widely
used alloys for jewellary in Europe are 18 and 14 carat, although 9
carat is popular in the UK. Portugal has a unique designation of 19.2
carats. In the United States 14 carat predominates, with some 10 carat.
In the Middle East, India and South East Asia, jewellary is
traditionally 22 carat (sometimes even 23 carat). In China, Hong Kong
and some other parts of Asia, "chuk kam" or pure gold jewellary of 990
fineness (almost 24 carat) is popular.
- India being the
largest consumer of gold jewellary and with a very low production of
gold, it largely depends on imported fine gold.
- Indian jewellary
has huge demand in world with estimated exports worth US $ 3,813 million
in 2004 - 05.
- South Africa is
the world's largest producer of gold, followed by USA and Australia.
Together, these countries account for 45 % of the world's total gold
production.
- India is the
largest consumer of gold, followed by the USA. The global gold
production rate is expected to increase at 4%.
- Annual demand
for gold falls into three main categories, the largest of which is the
jewellary market, which was worth $40 billion in 2005.
- Valcambi refines
mine and scrap precious metals, manufactures kilo, 10 tola, 100g bars
and investment bars for global markets, semi finished products for the
luxury Swiss watch industry and coins. Finorafa is a major supplier,
distributor and financier of precious metals to all major markets,
currently provide over $500m of precious metals financing to investment
rated banks.
- Desktop Gold
Refining equipment & initial consumables cost about USD 1500
- The project
can be a good source of income considering the simplicity of operation,
low investment , availability of plenty of Scrap and more interestingly
Gold prices scaling new hights during & future days
|
General
Introduction
- More About
Gold
- Gold - The Cost
Effective,
Recyclable Electronic Material
- Gold
Refining
- Gold Smelting
and Refining
Technology
- Transfer of
mining technology and the birth of new technology
- Roasting of gold
ore
- Mineral
Commodity Profiles—Gold
- Production
Technologies
- Method and
Apparatus for Extracting and Refining Gold from Ore - Patent
- Process for
Refining Gold and Apparatus Employed Therefor - Patent
Gold
Scrap
- Gold
Recycling
- Recovery of
Gold
- Prime sources of
gold supply
- Gold Losses and
Control in Gold Jewellary Manufacture
- Gold Scrap
Grade
Gold Refining
Equipment
- Refining Systems
Suppliers
- Equipment
Supplier
- Gold Refining
System
- Albar's Precious
Metal Refining Equipment
- New and Used
Mining Equipment
- Furnaces
Suppliers
- Gold
refinery
- Precious Metal
Assaying and Refinery
- Precious metals
refining plants
- Casting &
Finishing Equipment
- Refining
Equipment Directory
- Jewelry
Manufacturing Tools and Mold and Die Equipment
- Gold Refining
Machinery
- Smelting &
Refining Equipment
- Gold Refining
Systems
- Gold
refinery vessels
Gold Refining
Process
- Recovery And
Refining Of Gold Jewellary Scraps And Wastes
- Precious metal
refining
- Production of
Gold
- Borates in Gold
Metallurgy
- Precious
metals
- Preparation of
Gold
- Gold Refining
Process Chart
- Small-medium
scale refining by
inquartation and parting
- The Basic
Process of Gold Recovery
- Refining
Policy And
Procedures
- Indian
Government Policy Towards Gold
- Performance
Budget
- Annual Policy
Statement for the Year 2006-07
- ieport.com -
India's Premier portal on Central Excise matters
- Deregulation of
Gold In India
- Reserve Bank of
India Notification
- A Comprehensive
Manual for Foreign Direct Investment - Policy and Procedures
- Gold Deposit Scheme - Notifications
- The Changing
Needs of India’s Gold Policy
- Manual on
Foreign Direct Investment in India
|
Investment Cost
- Newmont
investment
- Foreign Investment
- Rand Refinery
eyes up Indian market
- Investing in the
Free State
- Venture
Capital
Market
- Market
Overview
- Gold Market and
Price
- Refining And
Recycling
- Overview of
Mining Industry Policies
- Recent
Developments in the Middle East Gold Market
- Gold
Market
- Scope for
Research in Mining Industry in South India
- Gold
Statistics
- Markets
Projects and
Plant Details
- Gold
Refinery
- Gold Refining
Plants and Assaying Machines
- Gujarat Gold
Center
- The Modder East
Gold Project
- Partial
conversion of uranium refinery into gold refinery
- Golden Phoenix
Minerals, Inc
- Processing
Plant
Company
Profiles
- AGR
Matthey
- Chemmanur Gold
Refinery
- Midwest
Refineries
- Newmont Mining Corporation
- Parekh Platinum
Limited
- Rand Refinery
- Shirpur Gold
Refinery Ltd
- Shandong Gold
Group Co., Ltd
- METALOR
- The Meycauayan
Jewelry Industry Association
- Gold Refining
Services
- G & S
Metals
Reports
- Recycling of
electronic materials
- Exploration
- Extraction &
Processing
- Newmont Annual
Report
- The Problem of
“Rogue” Companies
- The Good
Delivery Rules for Gold and Silver Bars
- Eaglecrest
Explorations Ltd. - Update Report
- Gold
- Al Ghurair Giga
Gold Refinery to attain full capacity production by Q3
- Pearl Asian
Mining Industries Inc. Announces Acquisition
- Harmony shuts its gold refinery
Consultants
- Association of
Responsible Mining
- Brook Hunt
- HEV
Consulting
- Experts
- Jorge Alberto
Provenzali
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