Studies on ultrafiltration membranes. I. Development of cellulose nitrate membranes

摘要

AbstractUltrafiltration membranes were prepared from cellulose nitrate under different conditions and were characterized using a solution of 1.0 dextran‐150 having a salinity of 1500 ppm. The role of various parameters such as polymer concentration, ratio of ether to alcohol, methanol as the solvent, and other additives is systematically studied and presented. Similarly, the effect of operational and hydraulic parameters on the membrane performance is evaluated and the minimum activation energy for the solvent permeability is experimentally deduce