Dave Dickey Forum Moderator 285 Posts
Re: Will prior densification of components affect the homogeneity of mixing?3 April 2013 at 10:57am Last edited: 23 April 2013 at 2:16pm
The answer to this question probably has multiple answers depending on related factors. However, the simple answer is that if "wet mixing" means forming a liquid suspension of small, slowly settling particles, densification should not make a significant change in the homogeneity of the mixture.
However, if the solids concentration is 20% or greater, interaction between particles could be significant enough to cause changes in the "fluid" behavior of the suspension. Densification usually means that the current particles 0.8 to 1 microns will be compacted together forming larger particles. Larger particles in a slurry may move more easily than fine particles, but they will settle faster.
The real answer to this question may be in a range where testing is necessary to decide how interacting properties affect the behavior of the mixture. Testing might be done on a smaller than production scale to avoid unwanted waste or expense.
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