Inorganic Chemistry,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 19, 2024
The
preparation
of
high-performance
electrode
materials
from
metallurgical
solid
waste
is
an
effective
strategy
to
address
current
energy
and
environmental
challenges.
This
study
utilizes
a
mixed
acid
leaching
ultrasound-assisted
precipitation
process
extract
valuable
metallic
iron
titanium-extraction
tailings
(TET)
produce
high-purity
nano-FePO
Efficient
utilization
of
lithium
and
phosphate
resources
from
slag,
a
byproduct
originated
product
extraction,
holds
great
significance
for
environmental
protection
industrial
development.
Existing
methods
primarily
focus
on
Li
extraction
this
while
PO43-
are
abandoned.
In
work,
we
proposed
clean
comprehensive
approach
based
impurity
followed
by
sequential
precipitation
FePO4
Li2CO3,
to
concurrently
recover
slag.
The
results
demonstrated
an
aluminum
separation
efficiency
85%,
reducing
the
concentration
in
raffinate
below
25.0
mg/L.
reaction,
facilitated
saponification,
involved
cation
exchange
between
Al3+
Na+.
synthesis
process
FePO4·2H2O
was
predominantly
controlled
chemical
with
activation
energy
102.8
kJ/mol.
obtained
Li2CO3
products
met
standards
battery-grade
materials.
Notably,
achieved
remarkable
phosphorus
recovery
rate
98.7%
maintaining
low
loss
under
2.0%.
This
work
outlines
method
achieving
complete
component
recovery,
offering
guidance
efficient
environmentally
friendly
reclamation
Nanomaterials,
Год журнала:
2024,
Номер
14(16), С. 1330 - 1330
Опубликована: Авг. 8, 2024
An
enormous
quantity
of
titanium
slag
has
caused
not
merely
serious
environment
pollution,
but
also
a
huge
waste
iron
and
sulfur
resources.
Hence,
recycling
resources
from
recently
been
an
urgent
problem.
Herein,
hematite
nanoparticles
were
fabricated
through
pyrite
reduction
approach
using
as-received
as
the
source
reducing
agent
in
nitrogen
atmosphere.
The
physicochemical
properties
analyzed
multiple
techniques
such
X-ray
diffraction
pattern,
ultraviolet–visible
spectrophotometry,
scanning
electron
microscopy.
best
synthesis
conditions
for
found
at
550
°C
30
min
with
mass
ratio
14:1
pyrite.
results
demonstrated
that
average
particle
diameter
45
nm
nearly
spherical
shape.
specific
surface
area,
pore
volume,
size
estimated
according
to
BET
method
19.6
m2/g,
0.117
cm3/g,
0.89
nm,
respectively.
Meanwhile,
possessed
weak
ferromagnetic
behavior
good
absorbance
wavelength
range
200
nm-600
applied
visible
light
responsive
catalyst.
Consequently,
these
show
formed
by
technique
have
promising
application
prospect
magnetic
material
photocatalysis.
Inorganic Chemistry,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 19, 2024
The
preparation
of
high-performance
electrode
materials
from
metallurgical
solid
waste
is
an
effective
strategy
to
address
current
energy
and
environmental
challenges.
This
study
utilizes
a
mixed
acid
leaching
ultrasound-assisted
precipitation
process
extract
valuable
metallic
iron
titanium-extraction
tailings
(TET)
produce
high-purity
nano-FePO