Membrane
filtration
Applicant: Millipore Membrane which
Corp.
filtration
apparatus
is formed
elements feed
from
and monolayer
molded
together.
port,
elements
The device
a filtrate
port
recentate
port. The sealing elements
molding
and,
with
optionally,
configuration
and the seal provided
step effect
that causes a feed liquid
a
disclosed.
a
microorganism
of the
Escherichia cells.
to be filtered
to form a
cells
broth
using
are
obtained
belonging through
filtered
patent
membranes
is
liquid
by culturing
a
for
from
the
a membrane
broth
through
a
to
Polyethyleneimine
fermentation
a seal configuration
genus
to separate
is
added
to
to form a mixture,
the membrane
to separate
and gaseous
the
the retentate
the
cause a negative is said
the
module
a retentate.
method
the
membrane
retentate.
Patent number: US 5824217
rate.
Inventors: S.
R.
Pearl,
W.
S. Merrill,
C.
J.
Petersen Date: 20 October
1998
improves
permeation
pressure
partial
of the
clement
flow
in order
ro the
be used
air taken
element
Ir
into
side can
control
are flow of
membrane.
integrated
of flush
This
mechanical
a
filters
Membranes
with
fed via the permeate
the
to
from
the
has a purely
effect.
Patent number: US 5814513
Patent number: WO 9846333
Date 29 September
1998
Date: 22 October
Inventors: T. Tanabe,
T. Nakamura
Inventors: Kneifel,
granted that
and can also be used
media.
on the retentate
reduce
been
process
a housing
a control
this polyethyleneimine
the feed or
have
media,
gaseous inside
that
that is not mixed with either
GKSS
a membrane
drying
arranged
and then
Germany
at
for
cells. It is claimed
filtrate
liquids and drying gases
Researchers
removing
Cells
by the
Co., Inc.
for
fermentation
that are insert
Filtering
Applicant: GKSS,
method
A
presealed
is provided
cells from fermentation
Applicant: Ajinomoto
is disclosed
multilayer
presealed insert
Removing broth
apparatus
1998
M.
Plonski,
K. Ohlrogge,
R.
Waldemann,
K.
J. Koll, C. Hasler,
H-H.
Klickow
Anti-telescoping
device
Pervaporation fluids
Applicant: I? J. Tortosa Longitudinal
extension
destruction
of
and
spirally an
the
modules
within
prevented
by a pair of end-cap
devices (ATD’s) and a central ATD
is an integral
circular
and
that is concentrically with tubular
ATD.
disposed
ends protruding
wound
membranes
is prevented
the
ends of the permeate
Patent Number
the
in
Date 6 October
the
1998
gas separation
Applicant: Nitto Researchers
Denko
uniform
over
permeability membrane resin
dielectric an organic bonding
constant solvent
polyimide
resin
does
polyimide original
not
formed.
that
dissolve but
organic gas The
membrane example,
step
is formed a nonwoven
Date: 6 October
63
1998
water but impermeable
is
electrolyzing halogen
achieved the
to the hydraulic
a
A submerged
using
for
the
E
membrane
cysts
involves
the
compounds system
solvent
and
with
the
result,
an
solution
located
adjacent
transport
field
is
polyimide a 40nm
like layer of 30 pm. The of,
for
also controls a coagulant
submerged
membrane
permeate
the retentate
body of water
is mixed
viruses, impurities.
to facilitate
the
and alkali
the cathode.
The
electronically
a porosity pore
of at least
size of at least
to provide has a pore
R. Mussel1
1998
arsenic The
a floe. The size in the a pure water the floe. The membrane
A system for pure oxygen Applicant. Praxair This process stream
relates
for separating to produce
It achieves
Inc.
to
an
oxygen
oxygen
apparatus
and
from a mixed
gas
of a desired
this by using a membrane
solid electrolyte Conversely,
M. Singh, V.
Technology
invention
to
produce
separating oxygen
of
it is claimed
oxygen a
product. made of a
ions from air
selected
this could
oxygen from an air stream to produce free “nitrogen”
1998
is
field
turbidity,
color,
Patent number. WO 9846533 Inventors: A. Benedek, H. Husain, R. Mitchell
having
Date: 15 October
to minimize
a flow
an
a mean
Inventors: R. Varjian,
remove
fouling
Date: 22 October K. Ikeda
material
is revealed
containing
from
at
metal
The process
to the cathode
away
to
to 1 pm to provide
alkali
10 microns.
pH in the range of 5 to 8
adds
Frenkel,
cloth.
insoluble
is reduced
Patent number: WO 9845503
Inc.
oocysts,
then
compartment.
the oxygen
comprises and
and
ions and water through
to the cathode
hydroxide
alkali
to produce
ions;
by having
of oxygen
water
matter,
brine
is produced.
characterized
the
compartment,
a concentrated
system of
and
and
range of 0.02
water
and
further
flow
Environmental,
purification organic
membrane
M. Maeda;
Applicant, Zenon
natural
a support
H. Beitler,
feeding
gas is fed to the cathode
so that
cathode
hydroxide
1998
Process for purifying
has a
bacteria,
a skin layer with
W. Jehle,
the
into the cathode
an oxygen-rich
metal
the
is miscible As
Inventors: C. R. Mayer,
the
separating
metal
the alkali metal
compartment
gas
in
thereby
the alkali halide
the membrane Then
membrane
to the anode alkali
of an
the
involves
brine
gas and
passing
cell consists
with
method
is disclosed
of an alkali metal
The electrolytic cathode
halide
30 percent
Patent number: US 5817165 Inventors: H. Hachisuka,
and/or
The
fluid
from
to
with the cathode
two.
contained
is
permeable
contact metal
separated
This
a membrane
and
conductive
the fluorine-containing
on
fluid.
using
form
in another
separation
and a sponge
water
are
brine.
anode
if
ensures
assembly
halide
and,
subsequent
Co.
electrode
that is used for the electrolysis
The
a dipole
may
fluorine-containing
resin layer comprises thickness
that
Alternatively, unit
solvent.
and/or fluid
hydraulic
the
Pervaporation
dissolved
hydraulic
which
hydraulic
in
is
various
water
Applicant: Dow Chemical
high
has at least one ether
is dipped
of
the
steam.
Date: 29 October
a polyimide
solvent
desolvation
resin,
asymmetric
has
factors.
of 30 or less and
in the molecular
wear and tear by
fluid are hygroscopic, of
it
true if the system
of alkali metal halide
A membrane
Piipel
separation
and
by dissolving
of 3.0 D or less.
The
that
area,
an organic
a
is pinhole-free,
separation
is formed
membrane.
gas
say
a large and
in either
moment
they
gases the
system
In addition,
substantially,
a
fluid.
have developed
polyimide
which
a hydraulic
absorption
of
using reported
Patent number: WO 9848175
Denko
fluorine-containing membrane
membrane
Corp.
at Nitto
the
temperature
that
US 5817235
Inventor: I? J. Tortosa
Polyimide
in
fluids
by causing
types of hydraulic
formation
tubes.
enters
This is especially
raised
for engaging
air
dehydrating
The workers
hydrodynamically.
results
by lugs that are
on each side of the plate
of hydraulic
the system
driven
to the
technique.
when
impairs
spirally
relates
degassing
cavitation.
interconnector
of
and/or that
The central
on each side of the
extension
development
pervaporation
at its hub section
Longitudinal
the proximal
is
of a perforated
a solid
plate. arranged
unit
anti-telescoping
assembly
steel plate
This
membrane
ultrafiltration
Electrolysis brines
Applicant. Daimler-Benz
consequent
wound
for drying hydraulic
purity.
be used for an oxygen-
product.
Patent number: El’875283 Inventors: I? Ravi, C. F. Gottzmann Date: 4 November
1998
Membrane Technology No. 103