Altair Nanotechnologies is positioning
itself through product innovation to become a leading supplier of ceramic,
metal oxide-based nanomaterial technology and nanomaterials worldwide.

BOC Scientist: CGM Advanced Melting Technology Improves Quality and Production for Glass Makers

In addition to full-scale laboratory testing and computer
simulations, CGM technology is proving effective in about 30 glass
furnaces worldwide where it is helping glass industry manufacturers in
the float, container, tableware, television , and fiberglass sectors.
CGM technology is being marketed worldwide by BOC and under
license by Linde AG, Linde Gas Division, Germany.S.

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ALTAIR NANOTECHNOLOGIES INC.
The heat pipe, fabricated in the shape of a wing leading edge, is designed
to accept the heat generated on the leading edge by aero-heating and to
dissipate the heat by radiation and convection from the remaining surface of
the wing. The heat pipe is
designed to operate at up to 1,100 degrees C. Peter Dussinger
Manager, High Temperature Programs + Products
Phone: (717) 295-6052; FAX: (717) 295-6064
Email: pete.

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For additional information on Altair and its nano-materials,
visit www."
The CGM system from BOC melts glass faster than side-fired
configurations by directly applying oxy-fuel flames on the batch in a
glass-melting furnace. The resulting improved heat transfer rate
brings a number of benefits, including

better quality

increased pull

reduced furnace size

reduced Nitrogen Oxide (NOx) emissions and

improved thermal efficiency

In his paper , Richardson will compare the results of the base
air-fuel case against cases for conventional oxy -fuel boosting and CGM
oxy-fuel boosting. The
company makes clear and colored glass containers , which it markets to
major beer, beverage and food companies worldwide. LANCASTER, Pa. ACT's products and
technologies have been used in temperature ranges from -150 to 1,100 degrees
C, for applications from spacecraft thermal control to catalytic reactor
cooling to medical surgery temperature control . It currently serves customers in
the U.

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Forward-looking statements, which are included in accordance
with the "safe harbor" provisions of the Private Securities Litigation
Reform Act of 1995, may involve risks, uncertainties and other factors that
may cause the company's actual results and performance in future periods to
be materially different from any future results or performance suggested by
the forward-looking statements in this release. Anchor has seen
improved glass quality from the BOC CGM technology installed in its
modern designed oxy-fuel furnace at its Warner Robins, Georgia , plant., Canada, Hong Kong, Israel, Japan, and the U.K. This group includes 6 employees and consultants each with 20+ years of
high temperature heat pipe experience.

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S.

* CGM is a trademark of The BOC Group, Inc. The heat pipe is a full-scale modular section of a wing,
approximately 4" wide and 36" long.
ACT is a developer and manufacturer of heat pipes, loop heat pipes, pumped
liquid and two-phase loops, and thermal storage devices.

This category will list job shops and contract heat treatment services and equipment for manufacturing parts and processes.

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Altair Nanotechnologies , Inc.

The company is organized into two divisions: Life Sciences and Performance
Materials .

Business Editors/Manufacturing Writers
Global Glass Industry Conference

MURRAY HILL , N.
Richardson says, "The independent tests confirm the ability of the
BOC CGM process to provide more rapid melting and better pull rates
than conventional zero port boosting, resulting in improved product
quality. The heat flux on the leading
edge will be greater than 100W/cm2.

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"

The DARPA contract was awarded to advance the Fray-Farthing-Chen (FFC)
Cambridge Titanium Process technology for the electrochemical production of
titanium metal. The FFC process promises to significantly reduce the cost
of manufacturing titanium metal and to dramatically expand titanium use in
a wider range of applications that include lightweight armored military
vehicles, the manufacture of automotive and aerospace parts and components
for power generation, oil and gas drilling, and lightweight and durable
consumer goods.

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"The technology described in this
patent is being applied in a development program, using titanium dioxide
electrodes manufactured by Altair, to produce titanium metal by a more
cost-effective process.altairnano., Altair Nanomaterials, Altairnano,
TiNano, RenaZorb, NanoCheck , TiNano Spheres and the Hydrochloride
Pigment Process are trademarks or registered trademarks of Altair
Nanotechnologies, Inc. He will discuss how third-party tester Glass
Service used computational fluid dynamics (CFD) to develop and
validate a combustion model and then study CGM process performance in
a range of glass furnaces. CCS Associates, Bethel Park,
Pennsylvania, was also involved in the heat pipe design. The envelope and wick are made of a
proprietary superalloy, and the working fluid is Lithium. Some of the products
include Isothermal Furnace Liner, Heat Pipe Black Body Cavity , and Isothermal
Sample Holder.
-- 50kW Sodium/Stainless Steel Heat Pipe Radiator coupled to Pumped
Liquid Lithium Loop for Space Based Thermionic Converters (1970s).1-ACT.

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"This patent strengthens our intellectual property position, further
differentiates Altair within the rapidly growing nanotechnology market and
illustrates our commitment to bring nanotechnology out of the laboratory
and into commercialization," said Dr.

Although an emerging field, nanotechnology is already having a unique
impact on several industry sectors. The Performance Materials Division is pursuing market
applications in Advanced Materials for Paints and Coatings (titanium
pigments and thermal spray coatings), Advanced Materials for Improving
Process Technologies (titanium metal manufacturing, catalysts and water
treatment), Advanced Materials for Alternative Energy (high performance
batteries, fuel cell and photovoltaics) and other high performance material
applications.
-- Solar Stirling Engine Sodium/Superalloy Heat Pipes (1990s).

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(NASDAQ: ALTI), a
developer and manufacturer of innovative nanomaterial products, today
announced the company was awarded a new European patent entitled "Method
for Producing Catalyst Structures" by the European Patent Office. Gotcher , Chief Executive
Officer of Altair Nanotechnologies. This program is being conducted in conjunction with
our partner, Titanium Metals Corporation, under a U.
Altair owns robust proprietary technology platforms for manufacturing a
variety of crystalline and non-crystalline nano-materials of unique
structure, performance, quality and cost.J., Advanced Cooling Technologies, Inc.

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The simulations also indicate that BOC's CGM process delivers
these benefits with improved efficiencies and significant NOx
reduction, compared with conventional oxy-fuel boosting. Further
information about The BOC Group may be obtained on the Internet at
www.dussinger@1-ACT.

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CGM was developed by BOC beginning in 1995 and has since been applied
in furnaces ranging in size from 16 to 700 tons per day. Glass manufacturers
look to BOC for its knowledge, skill and experience in delivering
reliable engineered solutions for their combustion technology and
glass process requirements.

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PRESS RELEASE Altair Nanotechnologies Awarded European Patent

----BOC's (NYSE:BOX)
advanced melting technology, CGM(TM), which has been confirmed in
independent tests to boost production and quality in glass furnaces,
will be the topic of a presentation at a global glass industry
conference on May 19-20 in Velke Karlovice, Czech Republic. BOC's glass experts have years of industry
experience and are focused on designing and delivering solutions that
address customers' productivity, environmental and economic challenges
at their facilities worldwide.
-- Titanium/Cesium/Potassium Heat Pipes (1980s, 2004).

Please contact ACT for information on the high temperature heat pipe
products we offer:

Mr.

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Forward-Looking Statements

This release may contain forward-looking statements as well as historical
information., BOC PGS technology manager, will present
a paper at the Seventh International Seminar on Mathematical Modeling
and Advanced Numerical Methods in Furnace Design and Operation. This work was performed for Lockheed Martin
Space Systems Company, Denver, Colorado, prime contractor of an Air Force
Research Laboratory, Air Vehicle Directorate sponsored program related to heat
pipe cooled leading edges for aerospace vehicles.com
Website: http://www.

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It employs some 30,000 people and
had annual sales of greater than $8.boc.

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Altair has installed semi-works
capability with a capacity to produce hundreds of tons of nano-materials.

Altair Nanotechnologies, Inc. CGM uses
oxy-fuel burners in the crown of a glass furnace to significantly
increase furnace capacity and improve glass quality. It can also be
used to extend the life and improve the performance of ailing
furnaces.

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The new
patent describes the process for making microporous structures that can be
used as catalyst supports, or as electrode materials, in connection with
titanium metal production and other processes. In addition, other risks are identified in the
company's most recent Annual Report on Form 10-K, as filed with the SEC.
Richardson, an inventor of the CGM process , holds a doctorate in
combustion science and leads BOC's combustion technology development
activities .
(ACT, http://www. The products operate in the temperature range of 50 to 1,100
degrees C, using water, cesium, potassium, sodium, and lithium as the working
fluids.

hardening carburizing

Defense Advanced
Research Projects Agency (DARPA) contract.com

normalizing tecmetal

1-ACT.com) has successfully demonstrated a new high
temperature heat pipe technology.
-- Isothermal Furnace Liners (since 1960s).

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sintering bodycote

The company expressly disclaims any obligation to update or revise any
forward-looking statements found herein to reflect any changes in company
expectations or results or any change in events.D.3 billion in 2004.

ACT Successfully Demonstrates High Temperature Heat Pipe Wing Leading Edge for Space Reentry Vehicles

The substantial technical heritage of
this group is best illustrated by the following accomplishments by our
personnel:

-- Variable Conductance Potassium Heat Pipe Power Flattening of
Radioisotope (1960s).
-- 6kW Moly/Lithium Heat Pipe with Sintered Arterial Wicks (1980s ).

tecmetal 9100

The Life Sciences Division is pursuing market applications in
pharmaceuticals, drug delivery , dental materials, cosmetics and other
medical markets.
Andrew Richardson, Ph.
Among manufacturers using CGM technology is Anchor Glass Company,
one of the top three glass container manufacturers in the U.

The BOC Group (NYSE:BOX), the worldwide industrial gases, vacuum
technologies and distribution services company, serves two million
customers in more than 50 countries.
ACT 's High Temperature Programs + Products Group develops and manufactures
high temperature heat pipe products for the calibration equipment, materials
processing, military, and aerospace markets.

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Alan J. These risks and
uncertainties include, without limitation, the risks that further testing
will reveal that the process described in the patent is not effective or
not compatible with related technologies; that the DARPA-sponsored
development program will not be renewed; that a superior feedstock
technology for the FFC process or other relevant processes will be
discovered; that the FFC process development program will be unsuccessful;
that Altair's other development stage products will not be developed to the
point of commercialization and that, even if commercialized, no market will
exist for such products or Altair will fail to effectively market to
customers in a market.com

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S.
-- 20kW Sodium Capillary Pumped Loop (1990s).

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com.
Such forward-looking statements speak only as of the date of this release. He
will discuss the CGM technology's unique improvements over
conventional oxy-fuel boosting that have been confirmed in computer
simulation testing.