Milling and Sieving
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Broyeurs à mortier RM 200

Brochures (2)

Flyers d'application (5)

Informations techniques (1)

Journal des Clients "l'échantillon" (9)

No. 36
L'art du broyage - des technologies de broyage modernes
No. 29
Nouveautés Les appareils de la génération 2007
No. 25
Le leader mondiale en broyage et tamisage
No. 24
Retsch présente ses nouveaux broyeurs planétaires à billes
No. 02
Particle Size Analysis: "Water is not just for washing!"
No. 05
Crushing: " We learnt it from nature"
No. 14
Preparation and analysis of foodstuffs
Nr. 08
Qualitätskontrolle und Probennahme
Nr. 13
Aufbereitung und Untersuchung von Baustoffen

Mode d'emploi (1)

Posters / Displays (1)

Rapport de tests (3)

From cacao tree to chocolate bar
The way from the cacao tree to the chocolate bar is a long one. Due to the many processing stages – harvest, fermentation, drying, cleaning, roasting, pre-crushing and finally grinding the cocoa nibs to liquor from which cocoa powder and cocoa butter are pressed – there may be significant variations in the quality. The quality control process not only includes testing the innocuousness of the product (e. g. fungi, heavy metal contamination) or the ingredients (fat, carbohydrate content), it also involves size reduction to an adequate particle size for a sensory test of the cocoa liquor. That is important because the human palate perceives particles as small as 30 microns as unpleasant.
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.

Rapport de tests (14)

Trucs et astuces (1)

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Vidéos (1)

Sujet à des modifications techniques et erreurs