Results of the finest one
Cold grinding and recycling with Messer
Many materials are easier to use and much more effective in a powder form.
However, it is often the case that they cannot easily be powdered due to their physical properties. These properties include the tendency to melt, sensitivity to changes in temperature and showing tough or elastic properties. This often occurs with plastics, natural rubbers, elastomers, pharmaceuticals and spices.
Cold grinding solves these problems
The cold grinding process involves cooling and embritteling of materials with extremely cold liquid nitrogen or carbon dioxide. The process results in production of fine particles with a high level of quality. In addition, process volumes increase significantly. During the grinding process heat sensitive materials are cooled with cryogenic gases in order to protect them from increases in temperature resulting from the heat generated by the process. This means that it is impossible for the powdered material to melt or become sticky.
The Messer Group’s new cold grinding and recycling lab offer the customer tailor made solutions including production cost estimates and pilot trials
We offer a new and highly specialised materials trial process. We are able to carry out sample cold grindings. The final working parameters, including process volumes, power and nitrogen requirements and the resulting particle size distribution are then measured, evaluated and made available to the customer.
Cryogenic grinding technology enables the separation of composite materials into their pure components
The application of cryogenic grinding allows composite materials such as fibre-reinforced thermoplastics, tin cans with product remains such as paint and lacquer adherences, galvanised plastic parts (e.g. sanitary facilities) or old tyres to be separated into their pure components. The success of the process is due to the different linear extension coefficients and embritteling abilities of the materials.
Advantages at a glance
- Higher process volumes
- Higher volumes of a finer product
- Lower energy consumption
- No melting or sticking of temperature sensitive plastics
- Set grinding temperatures prevent heat damage
- No loss of aromatic materials during the grinding of spices
- Greater protection against dust explosion
Oliver Dietrich
Application Technology
Technology Manager Industry
Phone: +49 (0) 2151 7811-226
Fax: +49 (0) 2151 7811-503
[E-Mail]
