noun: It is a system of color removal by lime precipitation
in which the procedure involves the addition of 1,000 to 2,000 parts
per million of lime
(calcium oxide)
to caustic extract. Also known as
"stoichiometric lime", this procedure is a modification of the
"massive line treatment" system whereby concentractions of
20,000 ppm of lime is added.
source: Doctor's Dissertation:
Color Removal from Softwood, Kraft, Caustic Extract Effluent by Polyamines
by T. C. Kisla, June, 1976
The Institute of Paper Chemistry, Appleton, Wisconsin