Planetary Ball Mill PM 400

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Planetary Ball Mills

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Colloidal Grinding

"the sample"

No. 30
Mills and Particle Analyzers for Environmental Analysis

No. 29
New Product Generation 2007

No. 21
Sample preparation for instrumental analysis

No. 17
Environmental Technology

No. 15
Preparation and testing of glass an ceramics

No. 05
Crushing: " We learnt it from nature"

No. 03
Comminution: "It all started with the impact and friction stone"

Nr. 04
Zerkleinerung: "Schneiden Sie sich nicht ins eigene Fleisch"

Nr. 06
Zerkleinerung: "Die Rolling Stones im Labor"

Nr. 10
Probenvorbereitung von Abfall- und Umweltproben

Nr. 11
Die neuen Schlagrotormühlen von RETSCH-für viele Produkte geeignet

Application Reports

Preparation of Soil, Sewage Sludge and Sediment Samples in a Wastewater Treatment Laboratory
The preparation of a mixture of organic and inorganic samples holds some difficulties: whereas sand, clay and stones can usually be ground to homogeneous samples with suitable laboratory mills, the high energy input can cause samples with organic components such as fat or starch to cake. Carsten Bunn, a laboratory technician at the waste water treatment laboratory BRW, has to deal with this problem every day. He treats samples which are taken from the sand traps of the wastewater treatment plants and consist of exactly that mixture. The sediments of household and industry waste water not only contain sand, clay or leaves but anything that people nowadays dispose of through the sewer system: cellulose, hair and especially food residues.

Green Chemistry in the Lab
Mechanochemistry is a very effective method to carry out syntheses without solvents and by-products. The technical literature describes a great number of reactions where a conversion of 100% is achieved. A precondition for the establishment of mechanochemistry in the industrial sector is the availability of suitable laboratory mills. A decisive factor is that – similar to conventional preparative chemistry – ambient parameters such as pressure and temperature can be documented and monitored. The Planetary Ball Mills and Mixer Mills from Retsch fulfill these requirements.

Size reduction within the context of sample preparation
In general “size reduction” is taken to mean the disintegration of solid substances by mechanical forces without altering their state.

Sample Preparation of Solid Materials for the XRF-analysis
X-Ray fluorescence is one of the most versatile methods to determine elements in a sample. The material is exposed to x-rays that cause each element to emit its own unique fluorescent x-ray. The subsequent analysis of the results is based on comparisons to standard samples with given chemical composition.

The Representative Sample Preparation of Waste
Now that a certain environmental awareness has developed in the population over the past few years, our efforts are geared not only to avoiding waste, but also to reducing the mountains of waste which still arise by means of raw material recovery and the reintroduction of secondary raw materials into the industrial cycle.

Herstellung von Nanopartikel mit der Planeten-Kugelmühle
Die Herstellung von Nanopartikeln, deren Größe im Bereich von 1 Mikron und kleiner liegt, ist in vielen technischen Bereichen immer mehr auf dem Vormarsch, denn sie ermöglichen die gezielte Veränderung von Materialeigenschaften.

Thermoelektrische Wandler - Eine Technologie aus der Raumfahrt
Mechanisches Legieren von thermoeletrischen Materialien für die Raumfahrt, entwickelt vom Institut für Werkstoff-Forschung in Köln, Arbeitsgruppe "Thermoelektrische Materialien".

Application/Industry Flyer