Ammonium sulfate mother liquor has a lot of foam
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How to solve the problem of excessive foam in mother liquor? We use waste engine oil, tar is not very useful
1 Low acid operation, low density of mother liquor. 2. Mechanical impurities and sludge brought in by pyridine refluxing mother liquor make the acid tar finely dispersed and not separated from the mother liquor. 3. The sulfide and arsenide in the gas generate colloidal arsenic sulfide that adheres to the acid tar and cannot be separated from the mother liquor. 4 The benzene hydrocarbons in the coal gas react with sulfuric acid to form benzenesulfonic acid or benzenesulfonate, which is surface active. cause harm: Excessive foaming of the mother liquor can easily lead to the failure of the liquid sealing function of the full flow tank, gas leakage, and failure of the mother liquor circulation pump. The hazards of mother liquor loss.
The water used to prepare the mother liquor must be new water. We used recycled water to prepare the mother liquor. The mother liquor foamed and turned black. It got better two days after using new water. We have used washing oil, and the effect is very obvious, but it will make the crystals color.
For example, at what temperature should the gas preheater temperature be controlled in the ammonium sulfate section? Can the gas preheater be cancelled?
Excuse me, on the sixth floor, does tar wash oil? Is it greenish?
Cannot cancel, control at around 55 degrees
The function of the gas preheater is to heat the gas to take away the water and maintain the water balance in the saturator. In fact, it mainly controls the temperature of the mother liquid. If the temperature of the mother liquid can reach 50 degrees without heating, there is no need to use a preheater. If the temperature cannot be raised and the saturator does not draw water, then it has to be used.