- ammonium thiosulphate (EC-Nr. 231-982-0); 01-2119537325-41-0001

- ammonium hydrogensulphite (EC-Nr. 233-469-7); 01-2119537321-49-0001

- potassium sulphite (EC-Nr. 233-321-1); 01-2119537319-34-0001

- potassium thiosulphate (EC-Nr. 233-666-8); 01-2119537328-35-0001

- Zeolite, cuboidal, crystalline, synthetic, non-fibrous (EC-Nr. 930-915-9); 01-2119429034-49-0021

As a manufacturer and importer we explain, that our products  silicon dioxide  and sodium thiosulphate have been registered as in phase-in substances at the European chemical agency (ECHA) under the following

registration number:

amorphous silica (silicon dioxide; CAS-Nr. 7631-86-9); Reg-Nr. 01-2119379499-16-0065

sodium thiosulphate ; CAS-Nr. 7772-98-7);  Reg-Nr. 01-2119531537-38-0000

Dr Volker Damrath, Managing Director of CWK, used his speech to praise the great commitment of the personnel involved in the preparation and completion of work on the investment, from both inside and outside the company, and in particular those who made the transfer of the new products from the laboratory to mass production possible within a short period of just two years.

The conclusion of the work on this investment means that the plant capacity for the production of molecular sieves has now almost doubled. The inclusion of a plant for the production of a new type of molecular sieves which contain no binding agents, which will increasingly be used for the production and treatment of technical gases, deserves special mention. These products are much more efficient than conventional molecular sieves and this means a corresponding reduction in the use of resources in the process. They were developed by the R&D team in the Molecular Sieves Business Unit in cooperation with external partners under the leadership of Dr Alfons Brandt. The plant concept was planned and constructed by the team engineers and technicians headed by Siegfried Götze, Central Technology Director at CWK.

Molecular sieves are crystalline, highly porous moulds used for separation and purification on molecular scale. CWK has been making molecular sieves for over 20 years for various applications. In 2010 a new production plant for special-purpose, binder-free molecular sieves was successfully put into operation. This kind of molecular sieves is primarily used for the production and treatment of industrial gases.

"The strategic cooperation of BASF and CWK is an advantage for both sides. We, CWK, benefit particularly from BASF's market presence in areas of application where we have so far shown little presence", stated Dr. Volker Damrath, Managing Director of Chemiewerk Bad Köstritz GmbH. "Through this cooperation CWK's know-how can be made available to more customers to meet their specific needs."

Craig Ostroff, Global Business Director, Adsorbents, BASF Catalyst Division:

"By adding molecular sieves to our  portfolio BASF's product line in terms of absorbents becomes the most comprehensive one of a sole supplier. We are thus able to provide our customers with a technology that is most suited for their specific needs.

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You can find the complete article at Chemie Ingenieur Technik (Volume 82, Issue 6, Pages 929 - 940) or online at http://www3.interscience.wiley.com/journal/123399662/abstract

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