What are the factors that affect the specific gravity of phosphoric acid?
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May I ask what factors affect the specific gravity of phosphoric acid? In this ore mixture, the content of pentoxide of phosphorus is 29.70%, the phosphorus percentage is 93%, and yet the specific gravity of phosphoric acid is only 1.21
In addition to the phosphorus yield, factors that affect the phosphate concentration may include excessive water added externally, high moisture content in the slurry, or too much washing water, as well as a low concentration of diluted acid returning from the process
Control the crystallization process; increase the amount of water used for washing to an appropriate level while ensuring a good washing efficiency. Perform a water balance analysis to determine where the excess water is coming from
The system level balance is not well controlled; check the specific gravity of the backflow acid and adjust the process parameters of the reaction tank.
The main reasons affecting the specific gravity of phosphoric acid are: high impurity content in phosphate ore, which enters the phosphoric acid during the production process； The amount of sulfuric acid added during the production process, or in other words, the excess factor ； The process of purification or aging. A specific gravity of 1.21 is considered quite good, especially when the phosphoric acid concentration is around 20%.
A specific gravity of 1.21 indicates a dilute acid that needs to be concentrated. Specific gravity is directly related to acid concentration, and the solid content in the acid also affects specific gravity.
This question is way too basic! Understand the basic principles first. . . . . .
When there are no issues with the minerals and the reaction process, it is due to an excessive amount of finished acid being extracted during production, along with a low amount of phosphoric acid being returned