The volume of a steady-state crystallizer is 85,000 L, and the solids fraction in the unit and the exitingstream is 0.35; that is, there are 0.35 kg of crystals per kg of slurry (the crystal-solution mixture). Thedensity of the solution is 1.1 g/mL and that of the crystals is 2.3 g/mL. The production rate of crystalsfrom the crystallizer is 19.5 kg crystals/min. Estimate the volumetric flow rate of slurry from thecrystallizer and the drawdown time of the crystallizer (the time it would take to empty the crystallizerif the feed were discontinued).

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Basic Chemical Calculations (Process and Variables)

A basic chemical calculation involves the application of the law of chemical proportions to various reactions and material and energy balance calculations on various chemical processes. Basic chemical calculation helps students analyze various chemical processes and develop problem-solving skills. The chemical manufacturing processes are divided into unit operations involving physical changes of material and unit processes involving the chemical transformation of materials. For instance, fluid flow, heat transfer, and mass transfer are unit operations, and oxidation, reduction, and pyrolysis are unit processes.