Supplier sign in
Home
STAY INFORMED
Subscribe to our monthly newsletter.
Your email address will never be disclosed to any third party.
Read our privacy notice.

       

Product news
02.03.2015  |  17127x
Share this item

Production of mixtures on a laboratory scale

Often an extreme challenge

Probably one of the most difficult tasks was the fine distribution of pure liquid mercury in a mixture of fine solid metal powders. Already during the manual mixing with a spatula, with careless work methods without a problem up to 3 mm large amalgam grains were produced. The solution was added to the Mortar Grinder PULVERISETTE 2, with an agate grinding set and special adjustments for the minimizing of the application of energy found.

From the area of mixtures liquid – solid is the production of filled pastes to be mentioned. Especially challenging here is to add as much as possible solids in the high viscosity organic phase. An additional example for this is, when one has to add to organic binder (for example synthetic resin or varnish or in the simplest case oil) fine metallic, ceramic or inorganic powders. High viscosity pastes evolve which can be compared with shoe polish in a tube. Experts often talk about filled composite materials. Often the increase of the degree of the solid content is the goal of all activities.

In this concrete case, a metallic powder was to be added to a synthetic resin of high viscosity. Chosen was the Mortar Grinder PULVERISETTE 2, equipped with a grinding set of hardened steel. With processing times of up to 30 minutes, the successive addition of the powder and supported by the slight warming from the applied comminution energy, up to 80% of the mass percentage of the solid was homogenously mixed in

From the areas of mixtures solid – liquid the contamination of ceramic powders with very little amounts of solved in liquid substances are to be mentioned.

For the test the Mortar Grinder PULVERISETTE 2 with an agate grinding set was chosen. The iron nitrate solution was used as the model-solution since it is coloured and therefore the homogeneity of the mixture was very easily visually evaluated. While the mill was grinding, approximately 1 ml liquid in 50 g powder were instilled. Afterwards it was further homogenized.

After 5 minutes a visual consistent system was created.

Company information

Related event

Workshop Probenaufbereitung und Partikelmessung
Take the opportunity and learn the theoretical foundations and instrumental possibilities of sample preparation and particle sizing. Participation in the workshop is free of charge. Contents of the workshop: Sample Preparation and Particle Sizing Sample preparation via comminution and dividing - Possibilities of sampling and sample division - Frequent mistakes during the sample preparation - Procedural basics of the mechanical comminution - Definition of material characteristics and their influence on sample preparation - Possibilities of particle production down into the nano range and the associated influencing factors - Application related tasks Basics of determination of Particle Size Distributions and Particle Shape with Laser Scattering and Dynamic Image Analysis - The new generation of Laser Particle Sizers ANALYSETTE 22 MicroTec plus and NanoTec plus for wet and dry measuring - Physical principles - Instrumental implementation - Problems of sample preparation and dispersion (wet- and dry dispersion, utilization of diverse additives) - Evaluation and interpretation of the measuring values - New Particle Sizers ANALYSETTE 28 – for fast analysis of particle shape and size Practical Part Samples brought in from participants will be comminuted and the particle size analysed. Our experts will introduce solutions to process the samples according to the needs of the user. In conclusion of the workshop, the results may be discussed among the workshop participants; respectively experiences may be exchanged.
16.09.2015 | Workshop | 1 day | Idar-Oberstein | Entry: Free (after registration)
PASSED

Related trade show

Related categories

PORTALS
BulkSolids-Portal Schuettgut-Portal Recycling-Portal
Related
Bulkgids.nl
SIGN UP FOR OUR NEWSLETTER
Newsletter archive
Service and contact
ContactDisclaimerPrivacyAdvertising
FOLLOW US
Linked