The
production
process
of
organic
bentonite
in
the
two
factories
is
described
below:
sun-dried
bentonite
was
smashed
into
pieces,
mixed
with
Na 2 CO 3 solution,
and
then
made
into
bentonite
mud.
After
sedimentation
and
purification,
the
ben-
tonite
mud
was
treated
by
organic
amine
(including
alkyl
quatemary
ammonium
salt
and
methyl
chloride).
After
filtration
and
drying
processes,
organic
bentonite
was
pulverized
and
packed.
A
large
amount
of
organic
BPs
were
produced
and