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Dicalite 215 is a calcined material produced as a baghouse product from straight calcined production. This grade cannot be precoated by itself on metal screen filters. Dicalite 215 has the lowest flowrate exhibiting a Darcy permeability of 0.02 and mean particle size of 12-18. It removes the smallest size suspended matter of any Dicalite filter aid product. Dicalite 215 is categorized as a “Polishing Grade” and is best used in filtration applications that require a very sparkling finish such as wine.

Dicalite 231 is a grade calcined without flux at 1400F – 1800F. Its flow ratio is higher than Speedflow. General uses are much the same as for Speedflow. The choice, as with any other filter aid grade, is the selection of the one which gives desired clarity with the greatest flow rate

Calcined Diatomaceous Earth (DE), is usually pink or orange in color and is processed at temperatures of over 1000F to agglomerate and purify the material. Calcined DE grades are normally used for fine filtration where clarity of the filtrate is most critical. Dicalite Minerals Calcined DE grades provide the best clarity, however at lower flow rates than Dicalite Flux-Calcined DE’s. Calcined filter aids are normally used on vertical, or horizontal leaf filters, and also on candle type filters. Calcined filter aids are best suited to high clarity, low solids applications where removing the smallest of particulate contaminant is paramount.

Dicalite Superaid is a lightly calcined main-bin or calcined baghouse grade. This product has an intermediate flowrate between Dicalite 215 and UF. Dicalite Superaid gives “sharp” filtration, that is, it will remove very finely divided solids, such as bacteria, colloidal haze, and the like. Clarity secured is brilliant. Dicalite Superaid is categorized as a “Polishing Grade” and is best used in filtration applications that require a very sparkling finish such as industrial alcohols, molasses, lard, tallow, citric acid, vinegar, and more.

Dicalite UF is a calcined material produced as a baghouse product from straight calcined production. It cannot be precoated on metal screen filters by itself. Dicalite UF has a flow rate greater than Superaid but not equal to Speedflow. It is generally most acceptable for filtrations require a high degree of clarification. Dicalite UF gives more throughput than 215 or Superaid.