Separation of particles/impurities from a solid–liquid mixture has been an age old problem. Various separation methods have been developed for various types of applications over the years. The separation method for a specific class of solid–liquid mixture depends on various factors such as the size of the particles, type/class of the liquid, mass/volume fraction of the particles in the mixture, and physical properties of the base liquid and the particles. Filtration, distillation, centrifugation, electrophoresis, magnetic separation, chromatography, and chemical methods are among the most widely used methods to separate particulate matter from liquid–solid mixture. Every separation method has various operating requirements and the most critical ones being physical, chemical, and electrical properties of entities to be separated and the mixture to be processed [11-16]. By studying and analyzing such properties of NEPCM, various methods have been attempted. In this work, the following methods: distillation, centrifugation, and use of alcohol mixture solvents, which have produced successful results, have been reported along with brief description of the methods followed by analysis of the results and conclusion.