Coal
gangue,
as
a
byproduct
of
coal
mining
and
washing,
has
experienced
significant
surge
in
production
due
to
escalating
energy
demands.
The
extensive
accumulation
gangue
resulted
challenges,
including
resource
wastage
severe
environmental
contamination.
To
better
understanding
the
current
research
landscape,
hotspots,
emerging
trends
comprehensive
utilization
we
employed
CiteSpace
bibliometric
software
visually
analyze
200
articles
published
Web
Science
Core
Collection
from
2004
2023.
majority
these
publications
(85%)
were
between
2019
2023,
with
most
originating
China.
This
study
used
cooperative
network
analysis
examine
synthesize
contributions
different
institutions
scholars
on
examining
gangue.
By
employing
advanced
techniques
such
keyword
co-occurrence
cluster
analysis,
our
delves
into
dynamic
hotspots
this
field
over
time
periods.
Through
trend
situation
analyses,
future
directions
for
are
proposed,
aim
inspiring
relevant
guiding
policy
formulation.
International Journal of Coal Science & Technology,
Год журнала:
2025,
Номер
12(1)
Опубликована: Апрель 19, 2025
Abstract
Coal-based
soild
wastes
(CBSWs)
are
industrial
byproducts
that
can
be
harmful
to
the
environment.
The
exploitation
and
utilization
of
CBSWs
offer
societal
advantages
such
as
resource
conservation,
pollution
reduction,
cost-effective
production.
However,
environmentally
sustainable
management
remains
a
worldwide
challenge
due
substantial
production
volume
limited
disposal
capacity
CBSWs.
physicochemical
properties
summarized,
including
fly
ash,
coal
gangue
gasification
slag.
It
also
presents
current
global
applications
status
resources
examines
market
supply
demand.
Subsequently,
paper
provides
an
overview
studies
on
ways
utilise
CBSWs,
highlighting
primary
avenues
which
mainly
from
fields
chemical
materials,
metallurgy
agriculture.
Furthermore,
comparative
evaluation
various
methods
for
recovery
is
conducted,
outlining
their
respective
disadvantages.
future
development
recycling
processes
discussed.
review
concludes
while
there
growing
need
attention
in
recycling,
its
will
involve
combination
both
large-scale
treatment
refinement
processes.
aims
references
insights
effective
environmental
protection
Future
direction
focus
collaborative
emphasizing
high-value
utilization.
In
addition,
establish
comprehensive
database
based
on-site
practices,
explore
solutions
reduce
transportation
costs,
improve
during
process.
Coal
gangue,
as
a
byproduct
of
coal
mining
and
washing,
has
experienced
significant
surge
in
production
due
to
escalating
energy
demands.
The
extensive
accumulation
gangue
resulted
challenges,
including
resource
wastage
severe
environmental
contamination.
To
better
understanding
the
current
research
landscape,
hotspots,
emerging
trends
comprehensive
utilization
we
employed
CiteSpace
bibliometric
software
visually
analyze
200
articles
published
Web
Science
Core
Collection
from
2004
2023.
majority
these
publications
(85%)
were
between
2019
2023,
with
most
originating
China.
This
study
used
cooperative
network
analysis
examine
synthesize
contributions
different
institutions
scholars
on
examining
gangue.
By
employing
advanced
techniques
such
keyword
co-occurrence
cluster
analysis,
our
delves
into
dynamic
hotspots
this
field
over
time
periods.
Through
trend
situation
analyses,
future
directions
for
are
proposed,
aim
inspiring
relevant
guiding
policy
formulation.
