Materials,
Journal Year:
2024,
Volume and Issue:
17(16), P. 3945 - 3945
Published: Aug. 8, 2024
The
presented
work
offers
an
innovative
process
scheme
for
valorizing
Pb-Zn
slag,
which
involves
crushing,
grinding,
and
separation
techniques
to
concentrate
valuable
components
(non-ferrous
metals).
This
methodology
could
have
a
significant
impact
on
the
global
beneficiation
of
metallurgical
slags
since
it
is
significantly
more
simple,
environmentally
friendly,
cost-effective
than
standard
pyro-
hydrometallurgical
procedures.
According
previous
physicochemical
mineralogical
studies,
slag
secondary
raw
material.
inhomogeneous
technogenic
resource
contains
substantial
amounts
non-ferrous
metals
(Pb,
Zn,
Cu,
Ag).
However,
laboratory
tests
indicated
that
highly
uneven
metals,
ranging
from
several
g/ton
tens
g/ton.
main
issue
traditional
procedures
releasing
beneficial
elements
are
not
commercially
viable
"trapped"
within
amorphous
aluminosilicates
or
intergrowths
alloy
grains
glassy
phases.
Gravity
concentration
(Wilfley
13
shaking
table)
magnetic
(Davis
separator
disk
separator)
were
used
obtain
final
following
comminution
grindability
testing.
gravity
proved
effective.
Namely,
separators
nor
adequately
separate
because
they
merged
together
with
iron-bearing
minerals
in
grains.
With
approach,
12.99%
processed
belonged
∆T
fraction
(concentration
metal
alloys),
while
remaining
87%
corresponded
tailings
(∆L).
total
recovered
Pb,
Ag
∆L
fractions
5.28%,
6.69%,
0.58%,
76.12
ppm
1.22%,
6.05%,
0.43%,
15.26
ppm,
respectively.
streamlined
approach
can
reduce
need
hazardous
chemicals
refinement
operations,
as
well
extremely
high
temperatures
required
pyrometallurgical
processing.
first
study
investigate
viability
this
novel
methodology,
direct
examinations
feed
various
alternative
technologies
concentration.
After
extracting
aluminosilicate
part
be
reapplied
material
building
sector,
adding
circularity
suggested
approach.
The
presented
work
offers
a
novel
process
scheme
for
valorizing
historical
Pb-Zn
slag,
which
involves
crushing,
grinding,
and
then
using
separation
techniques
to
concentrate
valuable
components
(nonferrous
metals).
This
methodology
could
have
significant
impact
on
the
global
beneficiation
of
metallurgical
slags
since,
in
theory,
it
is
significantly
more
simple,
environmentally
friendly,
cost-effective
than
standard
pyrometallurgical
or
hydrometallurgical
procedures.
According
previous
physicochemical
mineralogical
studies,
slag
from
"Topilnica"
Veles
secondary
raw
material.
inhomogeneous
technogenic
resource
contains
substantial
amounts
nonferrous
metals
(Pb,
Zn,
Cu,
Ag).
However,
laboratory
tests
indicated
that
very
uneven
amounts,
ranging
several
g/ton
tens
g/ton.
main
issue
traditional
procedures
releasing
beneficial
elements
are
not
commercially
viable
since
"trapped"
within
amorphous
aluminosilicates
intergrowths
alloy
grains
glassy
phases.
Gravity
concentration
(Wilfley
13
shaking
table)
magnetic
(Davis
separator
disk
separator)
were
used
obtain
final
following
comminution
grindability
testing.
gravity
proved
effective.
streamlined
approach
can
reduce
need
hazardous
chemicals
refinement
operations,
as
well
extremely
high
temperatures
required
processing.
first
investigation
into
feasibility
this
approach,
includes
direct
investigations
feed
these
alternative
technologies.
After
extracting
metals,
aluminosilicate
part
be
reapplied
an
material
building
sector,
adding
circularity
suggested
approach..
Heliyon,
Journal Year:
2024,
Volume and Issue:
10(13), P. e33991 - e33991
Published: July 1, 2024
The
objective
of
this
study
is
to
examine
the
relationship
between
Chinese
investment
and
access
clean
sustainable
energy
in
African
countries.
We
are
motivated
by
increasing
engagement
China
Africa
priority
for
both
partners.
employ
robust
econometric
modelling,
including
fixed
effects
two-step
Generalized
Method
Moments,
on
a
panel
sample
43
countries
over
19
years.
results
show
that
significantly
associated
with
increased
electricity.
This
effect
more
pronounced
resource-rich
countries,
suggesting
attracted
these
due
opportunities
resource
trade
form
partnerships.
policy
implication
finding
it
highlights
importance
governments
developing
favourable
strategies
policies
attract
investments
sector.
Natural Resources Forum,
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 15, 2024
Abstract
Protecting
and
improving
environmental
quality
is
essential
for
sustainable
development.
This
study
considers
natural
resource
depletion,
tax,
institutional
quality,
green
innovation,
which
are
likely
to
impact
quality.
These
issues
addressed
by
Sustainable
Development
Goals
(SDGs)
7,
12,
18.
The
aims
uncover
the
influence
of
variables
we
have
considered
on
in
a
sample
18
Organisation
Economic
Co‐operation
(OECD)
countries
from
1994
2020.
Before
panel
data
analysis,
conducted
preliminary
tests
determine
most
suitable
techniques.
econometric
procedure
comprises
four
stages:
unit
root
cointegration
estimation
long‐run
coefficients
using
two
different
methods,
causality
analysis.
empirical
findings
suggest
that
tax
energy
innovation
positively
long
run.
Results
based
country
show
has
negative
Portugal
but
positive
Luxembourg.
Although
taxes
Portugal,
they
harm
Lastly,
depletion
negatively
impacts
There
no
statistically
significant
results
other
countries.
concludes
with
policy
recommendations.
Materials,
Journal Year:
2024,
Volume and Issue:
17(16), P. 3945 - 3945
Published: Aug. 8, 2024
The
presented
work
offers
an
innovative
process
scheme
for
valorizing
Pb-Zn
slag,
which
involves
crushing,
grinding,
and
separation
techniques
to
concentrate
valuable
components
(non-ferrous
metals).
This
methodology
could
have
a
significant
impact
on
the
global
beneficiation
of
metallurgical
slags
since
it
is
significantly
more
simple,
environmentally
friendly,
cost-effective
than
standard
pyro-
hydrometallurgical
procedures.
According
previous
physicochemical
mineralogical
studies,
slag
secondary
raw
material.
inhomogeneous
technogenic
resource
contains
substantial
amounts
non-ferrous
metals
(Pb,
Zn,
Cu,
Ag).
However,
laboratory
tests
indicated
that
highly
uneven
metals,
ranging
from
several
g/ton
tens
g/ton.
main
issue
traditional
procedures
releasing
beneficial
elements
are
not
commercially
viable
"trapped"
within
amorphous
aluminosilicates
or
intergrowths
alloy
grains
glassy
phases.
Gravity
concentration
(Wilfley
13
shaking
table)
magnetic
(Davis
separator
disk
separator)
were
used
obtain
final
following
comminution
grindability
testing.
gravity
proved
effective.
Namely,
separators
nor
adequately
separate
because
they
merged
together
with
iron-bearing
minerals
in
grains.
With
approach,
12.99%
processed
belonged
∆T
fraction
(concentration
metal
alloys),
while
remaining
87%
corresponded
tailings
(∆L).
total
recovered
Pb,
Ag
∆L
fractions
5.28%,
6.69%,
0.58%,
76.12
ppm
1.22%,
6.05%,
0.43%,
15.26
ppm,
respectively.
streamlined
approach
can
reduce
need
hazardous
chemicals
refinement
operations,
as
well
extremely
high
temperatures
required
pyrometallurgical
processing.
first
study
investigate
viability
this
novel
methodology,
direct
examinations
feed
various
alternative
technologies
concentration.
After
extracting
aluminosilicate
part
be
reapplied
material
building
sector,
adding
circularity
suggested
approach.
