Chemical engineering separations is a core domain within chemical engineering focused on the principles, design, and operation of processes that separate mixtures into their constituent components. This field investigates the physical and chemical phenomena governing differential component distribution between phases or across barriers, employing diverse methodologies such as distillation, crystallization, adsorption, and membrane filtration. Its significance lies in enabling the achievement of desired product purity, facilitating resource recovery, minimizing waste streams, and ensuring process efficiency across various industries.