Mastersizer 3000 shows multi-parameter capabilities for catalyst optimization

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New application note discusses particle sizing, specific surface area and predicting attrition rate in fluidized beds

4 December 2012: Malvern, UK:  A new application note on the Malvern Instruments’ website discusses the criticality of particle size in the development and production of heterogeneous catalyst materials, and presents data to demonstrate the utility of the Mastersizer 3000 particle size analyzer in achieving optimum reactivity.

Pressure titration for three different catalysts

Not only does the Mastersizer 3000 accurately determine particle size distribution for a wide range of catalyst materials, it also uses the laser diffraction measurement to  calculate specific surface area. And uniquely it offers the ability to predict attrition rate in a fluidized bed from dry powder measurements at different pressures. Download ‘Particle size analysis of catalysts’ at http://www.malvern.com/catalyst

Heterogeneous describes a catalyst that is present in one phase (a solid) with the reactants in another (liquid or gas). For this type of catalyst, the reaction rate depends on the specific surface area of the solid material as this defines the available contact area between catalyst and reactants. Decreasing the particle size of a catalyst in order to increase specific surface area is often a beneficial strategy for improving its reactivity. However, a smaller particle size can be problematic. In some reactions a catalyst with particles that are too fine can cause a number of problems, ranging from health and safety issues due to dust formation through to loss of reactivity through uncontrolled agglomeration. Balancing the efficacy of the catalyst with reducing any risks of having a small particle size means that there is usually an optimum particle size range for a given catalyst.

The Mastersizer 3000 laser diffraction particle size analyzer delivers rapid, accurate particle size distributions for both wet and dry dispersions with the minimum of effort, bringing operator-independent measurements that every user can rely on. It measures over a wide dynamic range from 0.01 - 3500 µm and packs this exceptional performance into the smallest of footprints. Of particular value for the study of catalyst attrition is the power and precision of the integral Aero dry dispersion engine which enables very close control of the dispersion conditions applied. This enables researchers to gain real insight into the propensity of different catalysts to break down during processing.

Download ‘Particle size analysis of catalysts’ at http://www.malvern.com/catalyst

About Malvern Instruments
Malvern Instruments is a market leader in measuring performance controlling material properties. These include particle size, particle shape, zeta potential, molecular weight, size and conformation, rheological properties and chemical identification. Malvern delivers the systems, support and expertise that ensure the analytical integrity and productivity needed to drive research, development and manufacturing.

Malvern’s measurement solutions for scientists, technologists and engineers advance continually through customer collaboration. Complementary materials characterization systems deliver inter-related measurements that reflect the complexities of particulates and disperse systems, nanomaterials and macromolecules. Combining intelligently implemented technologies with in-depth industry applications knowledge and support, Malvern provides customers with the competitive advantage they demand.

Headquartered in Malvern, UK, Malvern Instruments has subsidiary organizations in all major European markets, North America, China, Japan and Korea, a joint venture in India, a global distributor network and applications laboratories around the world. www.malvern.com

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For press information, please contact: 
Trish Appleton, Kapler Communications  
Phoenix House, Phoenix Park, Eaton Socon, Cambridgeshire, PE19 8EP, UK
Tel: +44 (0)1480 471059  Fax: +44 (0)1480 471069  trish.appleton@kapleronline.com
   
USA contact: 
Marisa Fraser, Malvern Instruments Inc.
117 Flanders Road, Westborough, MA 01581-1042  USA
Tel:+1 508 768 6400 Fax: +1 508 768 6403  marisa.fraser@malvern.com
 
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Alison Vines, Malvern Instruments Ltd
Enigma Business Park, Grovewood Road, Malvern, Worcestershire WR14 1XZ  UK 
Tel: +44 (0) 1684 892456; Fax: +44 (0) 1684 892789 salesinfo@malvern.com



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