First
stage
It
starts
in
the
mine
or
quarry
,
where
it´s
obtained
.
In
nature
is
a
rock
with
____________________
,
____________________
,
____________________
and
other
____________________
.
1
.
The
____________________
are
removed
in
the
first
part
of
the
process
,
when
the
____________________
is
separated
from
the
ore
.
2
.
-
The
mineral
is
____________________
to
remove
____________________
.
-
It´s
____________________
into
____________________
.
-
The
____________________
is
____________________
,
and
then
,
again
separated
from
the
____________________
.
Second
stage
The
next
materials
are
added
in
the
blast
furnace
:
-
____________________
:
is
a
fuel
whith
few
____________________
and
high
____________________
content
,
usually
made
from
____________________
.
-
____________________
:
a
sedimentary
rock
consting
predominatly
of
____________________
____________________
.
-
____________________
:
the
usable
part
of
the
rock
of
iron
.
The
hot
is
injected
from
____________________
at
the
bottom
of
the
furnace
,
this
way
,
the
reaction
is
acelerated
and
the
temperature
rises
higher
(
over
____________________
)
.
The
lower
part
of
the
blast
furnace
is
called
____________________
.
Molten
minerals
precipitate
on
it
.
____________________
____________________
acomulates
at
the
botton
and
the
____________________
stays
above
it
.
They
are
separated
,
the
____________________
____________________
is
the
usable
part
.
The
____________________
____________________
usually
cool
in
____________________
,
after
,
they
are
transported
to
steel
companies
.
But
there's
a
problem
:
The
____________________
____________________
contents
too
much
____________________
and
____________________
in
the
composition
.
Needs
to
reduce
them
before
becoming
steel
.
Third
stage
-
____________________
is
added
to
the
____________________
____________________
.
-
____________________
is
injected
in
order
to
burn
the
____________________
and
eliminate
the
____________________
.
-
After
,
____________________
is
remove
.
And
the
liquid
steel
is
ready
to
get
the
final
shape
.