Agglomerate forming

Fig. 2. Compression strength of agglomerates formed into spherical shape by tumbling where = mean disperse particle diameter (8). To convert kPa to...

If a batch ingredient is in agglomerate form, some device to break up the agglomerates should be used to prevent them from segregating... 

Filming amines are of a wax-like consistency and require dispersion before introduction to the system. Particular care is needed when starting the dosage in case agglomerates formed from the amine, and debris (crud), cause blockage. 

The Amm perchlorate is coated by dissolving the appropriate wts of RDX TNT in hot ale. After adding the Amm perchlorate, the slurry is stirred until most of the Solv is evapd. The treated material is spread on a tray to dry overnight. Agglomerates formed during the process are crushed by hand rolling and blending the mixt before use... 

Dry agglomerates formed by dry handling. These are loosely held particles and aggregates cushioned from one another with absorbed air. They may range in size up to V4 inch (11). 

For FeNi and FeCoNi powders, as for CoNi powders, no segregation of the metals was observed by EDS even if some local inhomogeneities within the particles could be shown (6,33). In contrast, for FeCo powders the segregation of the two metals was clearly evidenced. Some isolated particles did not contain any iron the others were agglomerates formed by iron particles embedded in cobalt. 

Fig. 13.1.9 Microphotograph of a chainlike agglomerate formed by cubiclike hematite particles in 10-5 mol/dm1 aqueous solution of KC1.

Fig. 13.1.10 Microphotograph of a looplike agglomerate formed by spindle-type hematite particles.

EDX microanalysis performed on Cr-doped catalyst showed a large number of agglomerates formed from the primary NigAlg phase. (Al/Ni /" 0.22, Cr/Ni ... 

Relatively larger agglomerates formed than in most other methods. Limited pressure necessitates binder for adequate final strength. 

Nodulizing Mixture of ore fines and fuel, or simply of fusible fines, is passed through a rotary kiln or dryer and agglomerates form by partial fusion, chemical reaction, etc. as the temperature is raised Granulation, calcining Rotary kiln, dryer... 

Fig. 2.9. Typical compressive strengths of various spherical agglomerates formed by tumbling.

Crushing strength of salt-bonded agglomerates formed at various drying temperatures [54] (49 jum sand balled with aqueous sodium chloride solutions). 

In continuous systems, recycled undersize material or agglomerates formed by coalescence of the fresh feed act as nuclei. However, since the fine feed particles can form stronger bonds with the nuclei particles than with each other, the majority of the feed material would be expected to simply layer onto the established agglomerates rather than to coalesce with other fine particles. 

Agglomerates formed by coalescence and by layering can usually be distinguished by their appearance. Layered granules tend to a smooth spherical shape and examination of their interior cross sections reveals a layered onion skin construction. Coalesced granules tend to a more irregular spheroidal shape and often exhibit a rough raspberry -type surface. 

Agglomerates formed by wet pelletization are generally considered to be in the capillary state, that is the internal pore structure is just saturated with binding liquid. Eqn. (2) can then be derived for the liquid content of such an agglomerate on a wet basis ... 

In a hydrophobic system catalyst agglomerates form channels which are wetted with the electrolyte solution, most of the internal surface is not wetted. 

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