which type of meathod will you use to purified glycerol

Dear student,

With EET technology, biodiesel-derived and saponification -produced glycerol can be refined up to quality requirements of USP grade* 99.7. Alternately, lower cost, intermediate purity grades can be produced for direct use, subsequent chemical conversion into other compounds such as propylene glycol, or further purification with evaporation or distillation. The EET membrane-based technology avoids many of the issues associated with standalone evaporation and distillation such as foaming, carryover of contaminants, corrosion, limited recovery, and high capital, energy, maintenance and operating costs.

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