Petroleum sulfonates are widely used in chemical flooding in China. The samples are complicated and not all the fractions are effective. To recognize effective fraction with excellent interfacial activity and emulsifying property, a preparative…
To address chromatographic separation issues encountered with surfactant-polymer composite systems, a functional polymer (PAA-NA) was synthesized from acrylamide, 2-acrylamido-2-methylpropane sulfonic acid and two functional monomers, namely C14-C22…
A low cost and environmentally friendly demulsifier (A-RS) was prepared using waste rice straw (RS) as starting materials via a simple acid treatment process. It was characterized by field emission scanning electron microscopy (FE-SEM), energy…