- Tin is a relatively scarce element
and Tin Scrap generated from food service cans has good potential
for valuable tin recovery
-
Typically, the alloys of tin, such as brass and bronze, jeweler’s metal,
or babbitt, contain from 2% to 11% of tin as a minor component of the
alloy. The major exception is solder. Solders for plumbing and
construction-related uses have traditionally been 50% tin-50% lead, and
those for electronics have usually been 70% tin-30% lead
-
There must be good collection system in
place before embarking on scrap recycling Projects
-
Once at the detinning plant, detinning
solution flows around the cans (and cans with the ends removed allow
more contact of the solution, which results in better recovery of the
tin
during the reclaiming process). -
In the batch process of detinning, the
cans first are loaded into large perforated steel drums and dipped into
a caustic chemical solution that dissolves the tin from the steel.
-
The now detinned steel cans are drained,
rinsed, and baled into 400-lb. squares. Now they are ready to be sold to
steel mills and made into new products.
-
The liquid with the tin, a salt solution
called sodium stannate, is filtered to remove scraps of paper and
garbage. Next, electricity is applied
which makes tin form onto a plate in the solution. Finally, the tin is
melted off and cast into ingots.
-
The ingots are at least 99.98% pure tin
and are used in the chemical and pharmaceutical industries. Pure tin
also is
alloyed with other metals
-
Currently, tin is made of about 30%
recycled material.
-
The established, stable consumption
pattern of tin and the relatively high price of tin compared with other
base metals indicates that plentiful amounts of tin will be available
for recycling in future years
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General Information
- Recycling of
materials
- Recycling Food Service Cans
- Tin Scrap
Production Process
- Detinning Process
- Electrochemical removal of tin from dilute
aqueous sulfate solutions using a rotating cylinder electrode of
expanded metal
- Roll Tinning Salts
Company Profiles
- Company
in Belgium
-
Recycling
Equipment Company
-
Scrap Baler Company
-
Material Flow
Analysis
-
The Container
Recycling Institute
-
Company -
environment issue
Project Information
- Detinning of
Tin Scraps For The Recovery of Tin Metal
-
Technology Company
-
Air Quality
Control
-
Cleaning
Solution
-
License
Patents
- Electrochemical Detinning of Copper base Alloys
- Method &
Apparatus for Electrochemical delacquering & detinning
-
Apparatus
-
Apparatus
Invention details
|
Technology
- Leaching and
electrolysis of tin from steel cans
-
Densifier for
Steel & Aluminium Cans
-
Direct Charge Densifier
-
Direct Charge
densifier for Steel & Aluminium Cans
Products and
Applications
- Draft
code of practice - use of cans
-
Trade
Classification
-
Indian Rules -
2003
Report
- Tin
Recycling in the US
-
Copper & Tin in scrap steel recycling
- Tin Whisker
Theory
- Copper-base Scrap Industry and Its
By-products – USA 2002
- Copper-base Scrap Industry and Its
By-products – USA 2007
Market/Suppliers
- Tin Market -
Prices - News
-
Scrap Buyers
-
Scrap Suppliers
- Nickel-Tin
Scrap Buyer
- Scrap
Exporter
- Scrap Prices
- USA
- Trade India
- Trade Leads
- Tin
Scrap - msds
Order the CD
ROM |