how to recover gold from CPU computers
this is an old computer computer CPU is
hidden under the
this is CPU
the pin of the CPU is a metal plated
with gold
connector of gold-plated circuit board
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this is another example of a computer we
have this mantel I like to give you
internal parts of the electrical
equation I doubt the work of Technology
there are many devices that are stored
inside and of course it has what we see
it's gold most technology uses gold to
drive
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you connector a gold-plated circuit
board
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most CPU computers are under the
heatsink why a CPU computer needs a
heatsink CPU computer is hot well want
me to show it needs a heatsink
this is CPU of course it has a
gold-plated pin this is an old CPU
computer 486 thousand three hundred
eighty six Pentium Pro you will see the
CPU computers are made of ceramic
of course CPU computers made with
ceramic have more gold than CPU general
we will separate metals with gold remove
preliminary with the use of nitric acid
to reduce the amount of metal mixed with
gold remove as much as possible before
making gold aqua regia exulting I put
the water two thousand milliliters
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nitric acid one thousand milliliters
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leave it for two weeks
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you will see the golden legs fall off in
the water turns green do not worry
nitric acid cannot dissolve gold you may
see some people skip this step to make
gold aqua regia dissolving I personally
think that it contains too many other
metals making gold aqua regia dissolving
gold should have more than 60% both
precipitation with sodium metabisulfite
will have in the gold 99.99% if you have
a better way
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you will see the pen of the CPU fall out
cause of the nitric acid to dissolve the
lead solder legs become water
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I like this time the yellow-gold after
we have taken our raw materials are
soaked with nitric acid it will help you
evaluate will you get the gold
I would like to say that nitric acid is
a good gold sorter for gold alloys and
gold-plated
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you see under the dye chip will have
gold overlay we soaked in nitric acid
for one month it will be separated
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the chemical consists of one part nitric
acid in three parts hydrochloric acid
when these two acids combined we get
aqua regia after mixing acid let it
stand for three to five minutes
slowly pour the aqua kiya into the dry
ingredients you need to be aware of the
dangers of chemicals and use protective
equipment acid resistant gloves gas
masks
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acid resistant gloves gas masks
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goldwater filter to clean
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use Fozzie water spray to clean raw
materials the chemicals used to
precipitate gold or urea and sodium
metabisulfite put the urea to a
saturation point are stop dissolving
urea reduces the acid that we put over
urea is not a precipitate of gold the
gold is precipitated well the acidity
will be less urea will help you solve
this problem if you do not put urea in
case of acidity you have to force it
with sodium metabisulfite it's wrong and
need a lot but if you put the aqua regia
in a quantity that fits the dissolution
of gold the saturation point no need to
enter urea
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gradually add sodium metabisulfite enter
sodium metabisulfite stop melting your
saturation then leave for about two to
four hours
let the gold sludge fall below slowly
pour the water out the Hwang slides will
flow with water
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then bring the gold sludge to clean the
chemical three times hot water gold dust
we use a hot air blower dried gold
powder
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bring gold does to molten lumps
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we use induction heater and graphite
crucible
convenient quicken easy not gold
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bring gold powder into a graphite
crucible
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this is the gold we received
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golde weight of 6.7 grams
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