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Weight Of Slurry Essay

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CHEMICAL PLANT CALCULATIONS

VI-6.3. How to calculate weight of slurry

Let us first understand how to calculate the weight of slurry entering a process. Slurry is defined as a fluid that essentially contains a solid substance, mixed in it, and which is not soluble in the carrier fluid. When any solid is made to flow as a suspension in a liquid, the flowing stream is called slurry. For example starch powder in excess water forms slurry, which can be transported by means of pump and pipelines. Starch is not soluble in water. Similar is the case with calcium carbonate powder mixed in water. The solid substance increases the specific gravity of the fluid. For example if 320 kilograms of starch powder is mixed in 1000 kilograms of water, …show more content…

Simple calculations based on gram mole theory

We have learnt above how the quantities expressed in volumes can be converted into weights for the process calculation requirement. Liquid and slurries are always required to be measured in volume also apart from kilograms because the volumetric flow’s and the volumetric capacity measurements are extremely necessary to design the chemical plant equipments. If the material in question is a solid material, then it can best be expressed in weight. For example 100 kilograms of sodium carbonate flakes. Weight is the most common term to express the quantity of a mass of any matter. Solid substances can be weighed easily.
However, gases cannot be weighed. When gases are involved in a chemical process, their measurement is only available in terms of volume. Here the temperature and pressure of the prevailing system gains importance because the volume of all gases changes with temperature and pressure. Therefore if one specifies the volume of any gas then the temperature and pressure at which that volume exists, should also be specified. Otherwise volume of a gas carries no meaning.

It is for this reason that in chemical engineering the most significant way of expressing the quantities is in terms of

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