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2009
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HEV launched
cooperation with Jordan company SMSE
on the refining of spent catalytic converters
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2008
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Cooperation
with ZEOCHEM AG / Switzerland
on the production of HPZ (high performance zeolites)
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2007
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Cooperation
with K.A.Rasmussen / Norway
several engineering and know-how
projects on the refining of platinum group metals
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2006
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Cooperation
with Boliden / Finland
engineering and know-how
project on the optimization of the copper anode slime refining
plant
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2005
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Cooperation
with ZEOCHEM AG / Switzerland
on the upgrade of the
zeolite and silica gel operations
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2004
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Cooperation
with Sandomet Industries has been terminated
due to
ordinary fraud.
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15.03.02
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Cooperation
with HOFSTETTER Umwelttechnik has been terminated
The
offer of the swiss manufacturer of flares and combustible air
treatment plants has been removed from this marketing platform.
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15.03.02
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Cooperation
with ROUSSELET ROBATEL has been terminated
The
offer of the french manufacturer of centrifuges has been removed
from this marketing platform.
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13.08.01
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HEV launched
cooperation with Malaysian company Sandomet Industries Sdn. Bhd.
on recycling and marketing of platinum, palladium and rhodium
(pgm) bearing autocatalyst scrap (spent catalytic converters).
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20.08.00
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Get your free
stoichíometric calculator on page technology.htm
Useful tool
(DOS, 56 kB) for calculation of formula weight and material
balance involved in a chemical reaction. Free use is limited to
the running quarter; but you are free to download the tool again
after expiry.
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14.08.00
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Cooperation
with MURGUE-SEIGLE has been terminated
The offer of the
french manufacturer of physical, chemical and biological offgas
scrubbers has been removed from this website.
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23.12.99
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ROBATEL is
merged with ROUSSELET , No.2 French manufacturer of
centrifuges in F-07104 ANNONAY, to become ROUSSELET & ROBATEL
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01.07.99
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HEV represents
HOFSTETTER AG / Hindelbank Switzerland in Germany
Hofstetter
plant, konzipiert, entwickelt und baut Anlagen zur Behandlung
verbrennbarer Gasemissionen aus industriellen und biologischen
Prozessen. Eigene Produkte, ergänzt mit Fremdprodukten, geben
dem Kunden eine optimale Gesamtlösung aus einer Hand.
Hofstetter verfügt über Spezialkenntnisse in den
Bereichen
Verbrennungstechnik, Sicherheitstechnik und
Explosionsschutz.
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03.04.99
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HEV starts web service by own domain www.halwachs.de
followed later by www.haltech.de,
www.catalytic-converters.com,
www.spent-catalytic-converter.com
www.platinum-group-metals.com,
www.pgm-refining.de,
www.karat-gold-scrap.com
and
www.bio-chemicals.de,
www.industrial-chemicals.de,
www.industrial-enzymes.com,
www.metal-chemicals.de,
www.surplus-chemicals.de,
www.surplus-chemicals.com,
www.pharma-chemicals.de
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12.08.96
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HEV and
ROBATEL sign sales representation agreement for major parts of
Germany. ROBATEL is the leading french manufacturer of centrifuges
for the chemical and pharma industry in F-69741 Genas,
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01.11.95
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HEV founded by
Prof.Dr.Werner Halwachs
located in D-63571 Gelnhausen;
business areas are
1. consulting on precious metals know-how, engineering and services
2. marketing and production of selected fine chemicals
3. marketing of spent catalytic converters
4. sales representation of foreign high-tech companies in the area of solvent extraction and centrifugation
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