Advances in chemical and materials engineering book series,
Journal Year:
2024,
Volume and Issue:
unknown, P. 223 - 253
Published: Feb. 27, 2024
In
mineral
processing,
particle
size
is
an
important
factor
to
consider
since
it
affects
plant
design
and
performance,
which
later
determines
the
plant's
economic
return.
A
certain
above
below
mine's
optimal
range
can
adversely
influence
recovery
of
valuable
minerals.
Particle
analysis
crucial
in
mechanical
alloying
controlling
alloy
composition
homogeneity
mixture,
affecting
milling
kinetics,
reducing
contamination,
optimizing
process,
predicting
properties.
This
chapter
includes
understanding
distribution,
helps
researchers
tailor
process
for
specific
applications.
The
trend
has
been
wet-sieving
as
a
tool
past
25
years.
It
provides
overview
different
industries
where
used
associated
end-users.
also
reports
on
variables
principles
governing
factors
that
affect
wet
sieving
challenges
give
misleading
erroneous
distribution
results.
Case Studies in Construction Materials,
Journal Year:
2023,
Volume and Issue:
19, P. e02368 - e02368
Published: Aug. 6, 2023
Chloride
ions
erosion
is
a
negative
factor
for
concrete
sustainable
usage.
Fiber
addition
potential
solution,
which
promotes
tight
structure
formation
resulting
in
the
resistance
of
chloride
ions.
Corn
straw
kind
crop
waste
widely
sourced
that
can
be
used
as
reinforcement
material.
The
traditional
recycling
method
corn
including
burnt
ash
not
environment
friendly.
This
work
aims
to
pre-treat
fiber
(CSF)
by
some
convenient
methods
(untreated,
water-treated,
alkali-treated)
and
add
treated
CSFs
directly
into
prepare
fiber-reinforced
with
excellent
mechanical
properties
high
ability
component
content
different
was
tested
study
fibers
composition
microstructure
change.
heat
hydration,
compressive
strength
flexural
were
hydration
degree
effect
on
performance.
rapid
permeability
(RCPT)
migration
(RCM)
tests
designed
reinforced
concretes
In
addition,
further
explore
mechanism
performance
change,
water
absorption
rate
(WAR)
mercury
intrusion
porosity
(MIP)
provide
more
supporting
information
from
micro-level.
It
concluded
CSF
Na2SiO3
has
least
impurities
rougher
surface
larger
specific
area
bonding
cement
substrate.
Compared
original
concrete,
WT-CSF
NT-CSF
increased
15.7%,
17.8%,
33.4%
respectively.
results
RCM
RCPT
show
decreasing
trend
shows
greatest
decrease
20.1%
17.5%,
Except
less
CSF,
improvement
mainly
due
especially
contributes
denser
based
MIP
WAR
results.
viscosity
solution
acts
binder
helps
tighten
between
substrate
CSF.
adsorbed
alkaline
provided
facilitates
migration.
At
same
time,
cellulose
containing
many
hydroxyl
carboxyl
groups
ion
its
weak
conductivity
binding
force
exchange.
Hybrid Advances,
Journal Year:
2024,
Volume and Issue:
7, P. 100282 - 100282
Published: Aug. 28, 2024
Natural
fiber
composites
(NFCs)
are
increasingly
recognized
as
sustainable
and
environmentally
beneficial
substitutes
for
traditional
materials.
The
present
study
discusses
chemical
surface
treatments
that
promote
the
adhesion
of
natural
fibers
hydrophobic
matrices,
resulting
in
improved
mechanical
characteristics.
review
aims
to
examine
different
treatments,
evaluate
their
influence
on
qualities,
estimate
environmental
consequences
NFCs
using
a
life
cycle
assessment
(LCA).
It
includes
characteristics,
advantages,
disadvantages
newly
discovered
like
acai,
guaruman,
corn
straw,
examines
bromodecane,
lime,
tannic
acid,
which
improves
adherence
between
providing
better
tensile,
flexion,
impact
intensity.
Additionally,
it
benefits
NFCs,
stressing
lower
carbon
footprint
compared
synthetic
composites.
Critical
data
reveal
while
considerably
increase
NFC
performance,
treatment
choice
must
be
adjusted
individual
applications
combine
qualities
sustainability.
This
broadens
knowledge
provides
routes
future
research
build
more
efficient
eco-friendly
with
spanning
construction,
automotive,
packaging
sectors.
Powder Technology,
Journal Year:
2024,
Volume and Issue:
440, P. 119771 - 119771
Published: April 17, 2024
An
experiment-informed
discrete
particle
simulation
study
was
performed
to
investigate
the
role
of
flexural
particles
in
shear
flow
milled
pine
residues.
Physical
anatomical
fraction
samples
were
tested
an
FT4
powder
rheometer.
A
chip
model
for
bark/stem
chips
and
a
fiber
needles
proposed
DEM.
The
simulations
show
mixed
fibers/chips
require
higher
force
torque
drive
than
pure
or
fibers.
mass
flexibility
fibers
reveal
nonlinear
inter-dependency
on
impacting
fibers/chips.
Polydisperse
well
match
needle-rich
attributes,
while
polydisperse
agree
reasonably
with
bark/stem-rich
samples.
DEM
indicates
that
flowability
residue
biomass
is
determined
collectively
by
various
material
attributes
fractions,
which
must
be
considered
when
developing
preprocessing
methods
conversion-ready
adequate
handling
performance.
ACS Sustainable Chemistry & Engineering,
Journal Year:
2023,
Volume and Issue:
11(31), P. 11482 - 11489
Published: July 28, 2023
Handling
milled
biomass
particles
in
equipment
like
hoppers
and
feeders
has
been
a
long-lasting
challenge
the
bioenergy
industry
because
of
poor
flowability
these
low
density,
high
aspect
ratio,
irregularly
shaped
particles.
The
inner
pores
woody
complicate
granular
flow
behavior.
When
water
exists
intra-
inter-particle
with
sizes
ranging
from
nanometers
to
micrometers,
intricate
processes
such
as
hydrogen
bonding,
capillary
effects,
liquid
bridge,
lubrication
occur.
However,
knowledge
how
alter
bulk
behavior
is
severely
lacking.
This
study
investigates
loblolly
pine
chips
wedge-shaped
considering
moisture
content.
fiber
saturation
point
(FSP)
material
(30%)
was
determined
through
differential
scanning
calorimetry
analysis.
compressibility
shear
resistance
were
found
increase
increased
content
meso-scale
testing.
Moreover,
hopper
simulations
suggest
that
effective
discharge
rate
decreases
by
50%
increasing
up
FSP,
beyond
which
no
apparent
influence
on
discharge.
highlights
importance
quantifying
FSP
understanding
at
various
contents
sheds
light
trouble-free
handling
wet
industry.
ACS Sustainable Chemistry & Engineering,
Journal Year:
2022,
Volume and Issue:
10(50), P. 16803 - 16813
Published: Dec. 5, 2022
The
bioenergy
industry
has
been
challenged
by
unstable
flow
and
transport
of
milled
biomass
in
material
handling
operations.
Handling
issues
such
as
hopper
clogging
auger
jamming
are
attributed
to
knowledge
gaps
between
existing
units
designed
for
bulk
solids
their
suitability
with
high
compressibility.
This
work
investigates
various
behaviors
granular
woody
wedge-shaped
hoppers.
Hopper
physical
experiments
numerical
simulations
conducted
study
the
influence
critical
attributes
processing
parameters
on
pattern,
arching,
throughput.
results
show
that
(1)
preferred
mass
flow,
can
be
achieved
controlling
material's
internal
friction
angle,
inclination,
wall
friction;
(2)
governed
competing
gravity-driven
force
against
resistance
from
material–wall
friction,
controlled
angle
inclination
angle;
(3)
throughput
accurately
estimated
our
empirical
equation
inputs
outlet
geometry
particle-scale
bulk-scale
attributes.
elucidates
physics
provides
guidance
industrial
equipment
design.
