D - Textiles – Paper – 21 – F
Patent
D - Textiles, Paper
21
F
9/39
D21F 11/00 (2006.01) D21H 23/08 (2006.01) G01N 33/34 (2006.01)
Patent
CA 1277809
Abstract A method for controlling the addition (33) of cationic additive materials (27) to a paper mill slurry (22) used to neutralize the anionic contaminants in a papermaking process is disclosed which utilizes total organic carbon measurements (32, 34) of samples of the slurry as an indicator of the cationic demand of the paper mill slurry. The method of the present invention discloses the discovery that measurements of the total organic carbon (32, 34) taken from filtered samples of the papermaking slurry correlate very well to cationic demand measurements of the papermaking slurry (22). Therefore, measurements of the total dissolved organic carbon content may be used to determine the desired addition rate of cationic additivies (27) in a very convenient and reliable manner.
520803
Noe Jeffrey S.
Springer Allan M.
Taggart Thomas E.
Miami University
Riches Mckenzie & Herbert Llp
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