What kind of distillation tower is used for mother liquor and wastewater recovery?
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Such problems are often encountered in production: 1. The solvent mother liquor after crystallization and centrifugation needs to be recycled and reused, and the remaining concentrated liquid should be recycled into products. We now routinely use the production reaction kettle (tank) to concentrate the distilled solvent, but the efficiency of the equipment is too low. Is there any good equipment that can be replaced? 2. A large amount of process wastewater is often produced during production, such as the aqueous phase after extraction and stratification. The COD in these wastewaters is very high and often cannot be discharged directly to the company's wastewater treatment station. The solvent in the wastewater needs to be distilled out and then discharged. This leads to the need to arrange several sets of reactors (tanks) to process wastewater during production. Is there any good distillation equipment to steam wastewater? Please give me some ideas, sea friends!
You can use a continuous solvent recovery tower, which is much more efficient than your kettle type one.
because of me* The company produces multiple products. Depending on the product variety, the equipment for distilling the mother liquor must be easy to clean to prevent contamination of the next product. It seems that the continuous distillation tower is not suitable for multiple solvent recovery, right?
If you want to recycle multiple solvents, doesn’t it require frequent cleaning if you use kettle recycling? If you use a tower, you can just clean it too.
If multiple types of materials are to be distilled, it is more appropriate to use a batch distillation tower. If the requirements for cleanliness are relatively high, you can evaporate first and then enter the gas phase into the tower, which can reduce the amount of pharmaceutical products brought into the distillation system.