Measurement of Filtration Quality of Viscose Solutions

Abstract

Our point of view on the question is confirmed by the results obtained by the Swedish firm Bolidens (3). According to their roasting data, mith initial sulfur and iron contents in the pyrite of 50% and 47?5, respectively, we have calculated the relative retention of the: arsenic as a function of the percentage of theoretical air according to the Bolidens (BO) and the Spanish (PE) processes (Figure 9). The representative lines are