BIO-SIL PPA/20 is an active emulsion of silica filled Polydimethylsiloxane which is specifically formulated for the control of foam in black liquor generated during bagasse based pulp making. BIO-SIL PPA/20 is effective at low dosages when added to black liquor where the treatment of foam is critical.
Common Areas of Use.
Black liquor in paper manufacturing
Pulp making effluent water treatment
For maximum performance, BIO-SIL PPA/20 can be administered directly into the foaming system with a metered pump. BIO-SIL PPA/20 is efficiently dispersed with minimum agitation.
For end use:
BIO-SIL PPA/20 emulsions can be added directly from the original shipped container to the foaming system.
Concentrations in the range of 0.1 to 0.2% have been determined as a good starting point.
Compliant with the FDA Code of Federal Regulation Title 21 section 176.210 (indirect food additives used as defoaming agents in the manufacture of paper and paperboard).
The warranty period without testing is 12 months from date of manufacture, if stored in the original unopened container at 4°C to 27°C. Mild agitation should be carried out if stored as the nature of any emulsion is to separate without agitation over extended periods of storage.