Metallic hydrogen-selective palladium-bearing membranes

plant

at nuclear

during

research

the early

plant

was

m3/day

800

m3/day.

of drinking

high-grade

facilities

1980s.

capacity

This

comprised

water,

desalinated

and

that

in Libya

The

of the 650

150 m3/day

of

on

L.N.

Chekalov

a membrane

to oxygenate comprises unit

which

for

and

an injection on

can

of

module,

the

be

swimming

a combination

a vacuum

reported

permeate

It

and

methods

are

disclosed.

include

a polymeric

matrix

material which is immobilised The membranes compounds

from a biological

pathogen

inactivation

Patent number:US

closed

said

and technology

and

a particulate

by Dr

filter.

November

1998. of

porous

15

membranes.

November

For more information, contact: Dr Dmitri

twice The

membrane,

contains method

application organic

fluid as part of a

treatment.

filter

and

a

track-etched

cartridge

has a bubble

point

of

bubble

membrane.

point

and The

a

filter

that is at least 50%

of

the

A

desalinated

and of the

preferred

may

conductivity

5-15°C.

be about

lo-35

10 mS/cm.

The permeate concentration

is constant.

medium

a recombinant

containing

Saccharomyces cerevisiae is ultrafiltered membrane about

the membrane

having

20-30

a molecular

R.G. Pauley, D.L. McLarty

the membrane

Inventors: J. Moller,

Membranes use amino-acid polyamine polymers

Inventors: J.G. Clements,

salts in

polymer

a polyamine,

in about

on the total weight embodiment

suitable

for use in separating

streams

comprises

containing

rich gas streams membrane

CO,,

CO,

and

without

from

Solid

Applicant: Lynntech Inc, USA

blended

invention

conducting

hydrogen-

membranes membranes ionically

than

may be formed

the

polyamine.

Patent number: US 6099621

may

cation-

or

multiple

ionically

in a bipolar

Inventor: W.S.W. Ho

region,

Publication date: 8 August

2000

be

conducting

Polymer electrolyte

fuel cell Japan

The patent

fuel cell.

covers a polymer

It comprises anode polymer

a polymer

catalytic

electrode

electrolyte

is supplied

electrolyte

electrolyte

membrane,

on one

membrane,

to the anode

between

cathode

electrode

on

polymer

electrolyte,

and oxidation

supplied

to the cathode

compact performance

fuel

cell

other

catalytic

system

side of the

with

can thus be achieved.

electrode, side

electrode. a high

US 6103078

Inventors: G.D.

Hitchems,

Andrews,

O.J. Murphy, C.L.C.

a single

such

as in a or

such as and

and possess

an

the anion-selective

H. Jabs, CC. W. White,

G.W.

Concentration

ionic

electrolyte

electrolyte rechargeable enhance

to produce

especially

membrane

and

electrolytes fuel

double-layer

capacitor,

zinc-halide

cell. These

the performance

oxide) in varied

conductivity,

applications,

polymer

a high

characteristics.

electrochemical

in

for the cell,

the

and

the

membranes

of thesqdevices.

US 6103414

Inventors: I Cabasso,

Y. Yuan, C. Mittelsteadt

Publication ahte: 15 August

2000

Metallic hydrogen-selective palladium-bearing membranes Applicant: Walter Juda Associates Inc, USA pinhole-free,

2000

of peptides

thinning

membranes

A

A peptide

as in a cell-free

a molecular

weight

with

thin,

is described

cold-rolled

one membrane

is ultrafiltered

of creating

hydrogen-selective,

etching

having

membrane

for solid polymer

GmbH, Germany such

fluoride),

thus are suitable

A new method

Tennakoon

Publication date: 15 August

medium

comprising poly(phenylene

are inexpensive

very high

Patent number:

a cation-selective region,

membranes sulfonated

membranes

Applicant: Aventis Pharma Deutschland

cell

2000

with poly(vinylidene

is

of the

gas which

F. Richard

ratios, offer improved These

bearing a

membranes

or electrochemically

Patent number: US 6103028 Inventors: W. Juda, C.W Krueger, Publication he:

involves

by chemical

electrolysing

fermentation of at least

palladiumwhich

at least

surface.

a membrane

cut-off

free-standing,

15 August

R.T. Bombard

2000

A Membrane Technology No. 129

a of

regions.

Patent number:

Jackson,

the

a fuel gas which

catalytic the

an

from

materials,

with

anion-selective region

any ionically

membrane,

conducting

and cation-selective Applicant: Mazda Motor Corporation,

formed material,

membrane

The

particular,

anion-conductive

an

interfacial

from

In

internal

them.

polymer

charge-density

ionically

contain

for making

material.

shows

permeability

improved which

and methods

conducting

higher

provides

membranes,

passages,

gas

cut-off

Applicant: State University of New York, USA

and CO. The

on polyamine

selectivity

membrane

CO,

weight

as

with

Blend membranes based on sulfonated poly(phenylene oxide)

2000

Methods for preparing membranes with fluid distribution passages This

a membrane

especially

containing

based

wt%,

of the composition.

Another

CO,

or its

lo-80

S.

Co,

blend, and at least one salt of an amino-

acid. The salt is present based

W.S. Macomber,

Surprenant

USA comprises

seal.

Publication date: 15 August

Publication date: 15 August

Applicant: Exxon Research & Engineering This composition

to cool to form a leak-free

such

kD.

Patent number: US 6103502

Patent number: US 6103119

until

hirudin

the method membrane

and about A cell-

micro-organism

so that it melts back on itself, and then allowing

2000

l/m2/h,

may be recycled

Inventors: D.R. Boggs, D.J. Hei, S. Sternberg, Publication date: 8 August

The permeate

may be less than

the peptide

free fermentation

for

temperature

is about

permeate

of

by the

pre-purification

from

the track-etched

below a heat source and orienting

is

flow-rate

weight

is retained

track-etched

In one embodiment, placing

which

membrane

the cartridge.

the

peptide.

cartridge

the molecular

peptide

to provide

ultrafiltration

for making

includes

6099734

membrane

a filter

5364586,

Email: db2Qakad.sun.ac.za

2000

Inc, USA

US Patent

1994.

the peptide.

covers

a 3

2. L.I. Trusov et al. Process for the production

approximately

patent

making

5830340,

Africa. Tel: +27 21 BOB 3367, Fax: +27 21 808 3360,

science

F. Fujikawa

This

for

Patent

Bessarabov, Department of Chemistry, University of

Africa.

Applicant: Whatman

US

Stellenbosch, Private Bag Xl, Matieland 7602, South

on the current

in membrane

et al. Method

Trusov

Patent number: US 6103412

the matrix.

for removing

a talk

1. L.I. composite

concentrated

these

membranes

in

References

Inventors: S. Hirano,

Track-etched cartridges

The

in

of Stellenbosch,

reported

in South

but

treatment

with

Publication date: 15 August

from

making

who

a

for waste-water

(University

and developments

may find particular

and apparatus

workshop Bessarabov

creates

module,

water

trends

creares He

within

in methods

for

which

Inc, USA

for

and pools.

for air.

of gas bubbles

is important

Africa),

side.

Applicant: Baxter International

This

swimming The

only

in the membrane

treatment

D.G.

not

a high dispersion

South

Removing organic compounds biological fluid

membranes

the injector

force

effective

oxygen-enriched

a membrane

Patents Membranes

driving

used

pools.

is especially with

Furthermore,

the water.

(TEKO)

plant water

design water

also creates

water.

Water oxygenation Professor

the

aerating

w