Dissolve when adding too much crude salt, resulting in part of the crude salt is not dissolved, so the yield will be low; dissolve the phenomenon of splashing droplets when stirring; filtering the liquid spattered out of the situation; in the process of evaporation of the liquid spattering, so it will lead to a lower yield of refined salt.

First, the reasons for the low yield of refined salt

1, the amount of crude salt added to the dissolution is too much, resulting in part of the crude salt is not completely dissolved, so the yield of refined salt will be reduced.

2, the dissolution of the stirring occurred when the liquid droplets splashed out of the situation, which will lead to a reduction in the yield of refined salt.

3, in the process of filtration of liquid spattering, which will lead to a reduction in the yield of refined salt.

4, in the process of evaporation of the liquid (or solid) splash situation, which will lead to a reduction in the yield of refined salt.

Second, what is the formula for calculating the yield of refined salt

The formula for calculating the yield of refined salt is: p=m/M*100%. Where ?m? is the mass of the final extracted refined salt, and ?M? refers to the mass of crude salt.

Third, the reasons for the high yield of refined salt

1, after filtration, when the liquid is still in a turbid state, it is operated to evaporate water, so it will lead to a higher yield of refined salt.

2, after evaporation of the solid is still wet, so it leads to a higher yield of refined salt.