Development of a Novel Eco-Friendly Depressant for the Selective Flotation of Magnesite from Dolomite: Investigation of Luteolin’s Effectiveness and Mechanism of Action
Xiaoqi Ban,
Jin Yao,
Wanzhong Yin
и другие.
Process Safety and Environmental Protection,
Год журнала:
2025,
Номер
unknown, С. 107046 - 107046
Опубликована: Март 1, 2025
Язык: Английский
Selective depression mechanism of N,N-bis(phosphonomethyl)sulfamic acid on dolomite in magnesite flotation: Integrated experimental and computational approach
Separation and Purification Technology,
Год журнала:
2025,
Номер
unknown, С. 133109 - 133109
Опубликована: Апрель 1, 2025
Язык: Английский
Novel collector Cu-DBOA for efficient separation of scheelite and fluorite in sodium silicate systems
Separation and Purification Technology,
Год журнала:
2025,
Номер
unknown, С. 133222 - 133222
Опубликована: Апрель 1, 2025
Язык: Английский
An Environmentally Friendly Chelator for Improving the Flotation Separation of Magnesite and Dolomite: Flotation Behavior and Adsorption Mechanism
Minerals,
Год журнала:
2025,
Номер
15(3), С. 289 - 289
Опубликована: Март 12, 2025
During
the
grinding
process,
magnesite
(MgCO3)
and
calcareous
gangue
minerals,
such
as
dolomite
(MgCa(CO3)2),
are
prone
to
surface
dissolution.
The
dissolved
metal
ions
adsorb
onto
mineral
surfaces,
causing
properties
of
both
minerals
converge,
which
complicates
flotation
separation.
This
study
investigates
use
ethylene
glycol
tetra-acetic
acid
(EGTA)
optimize
grinding–flotation
system
for
recovery
magnesite.
mechanisms
underlying
EGTA’s
effects
on
were
examined
through
various
characterization
techniques,
including
contact
angle
measurements,
zeta
potential
analysis,
Fourier
transform
infrared
spectroscopy
(FTIR),
X-ray
photoelectron
(XPS),
inductively
coupled
plasma
optical
emission
spectrometry
(ICP-OES).
Single-mineral
tests
revealed
that
EGTA
addition
during
enhanced
separation
between
in
flotation.
An
artificial
mixed-ore
yielded
a
concentrate
with
46.47%
MgO
grade
92.21%
recovery.
Mechanistic
studies
indicated
selectively
adsorbed
Ca
sites
dolomite,
increasing
its
hydrophilicity.
Additionally,
effectively
chelated
Ca2+
slurry,
improving
chemical
environment.
Therefore,
demonstrated
significant
Язык: Английский
Application of dodecylbenzenesulfonate isopropanolamine as an environmentally friendly collector in direct flotation separation of magnesite from quartz
Xiaoqi Ban,
Jin Yao,
Wanzhong Yin
и другие.
Minerals Engineering,
Год журнала:
2025,
Номер
229, С. 109408 - 109408
Опубликована: Май 11, 2025
Язык: Английский
Robust Adsorption of Pb(II) and Cd(II) by GLDA-Intercalated ZnAl-LDH: Structural Engineering, Mechanistic Insights, and Environmental Applications
Coatings,
Год журнала:
2025,
Номер
15(5), С. 613 - 613
Опубликована: Май 21, 2025
The
rapid
pace
of
industrialization
has
led
to
widespread
heavy
metal
contamination
in
water
and
soil,
highlighting
the
need
for
efficient
remediation
strategies.
Among
various
approaches,
adsorption
proven
be
an
effective
method
treating
contaminated
environments.
Layered
double
hydroxide
(LDH)
is
frequently
used
such
applications.
However,
its
efficiency
remains
limited.
In
this
study,
glutamic
acid
diacetate
tetrasodium
salt
(GLDA)
was
incorporated
into
ZnAl
LDH
via
a
straightforward
co-precipitation
ion
exchange
method,
yielding
modified
material,
GLDA-LDH,
which
subsequently
applied
Pb(II)
Cd(II).
Adsorption
behavior
investigated
through
kinetic
isothermal
models,
with
results
indicating
that
process
followed
pseudo-second-order
kinetics
fit
well
Langmuir
isotherm,
suggesting
chemisorption
onto
monolayer
surface.
maximum
capacities
reached
219.2
mg/g
121.9
Furthermore,
GLDA-LDH
exhibited
strong
retention
capability
ions
minimal
desorption
remained
presence
hard
soils.
XPS
analysis
revealed
distinct
interaction
mechanisms;
surface
oxygen
carboxyl
groups
played
key
role
adsorption,
whereas
nitrogen
coordination
involved
Cd(II)
uptake.
These
point
potential
as
reliable
material
addressing
pollution
provide
insights
design
enhanced
LDH-based
adsorbents.
Язык: Английский