Method of controlling alkaline pulping by means of a rapid analyzer measuring organic and inorganic cooking liquor components

Abstract From the Canadian patent

The invention relates to a method of controlling an alkaline pulping process, sulphate pulping in particular. According to the invention the, concentration of the dissolved components as well as the concentration of the residual cooking chemical are measured. The measurements are carried out by means of an analyzer positioned outside of the cooking process in a separate liquid flow. The measuring devices are per se known detectors. The cooking process is observed and the necessary corrections are made on the basis of the measuring results. (Figure 1)