The concentration process of spent sulfuric acid is not working well
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Within the company, negative-pressure multi-effect evaporation is used to concentrate the electrolyte in the batteries; since the electrolyte contains a high amount of metal ions, crystalline deposits have formed inside the heat exchangers, severely impairing heat transfer. Now consider two aspects: 1. Install a filtering device in front of the system to remove impurities from the sulfuric acid in the electrolyte ； 2. Add scale inhibitors to the system to slow down the formation of scale that adheres to the equipment. I hope the seniors can give me some advice. Those who are involved in manufacturing related equipment or chemicals can also get in touch with me.
Well, system pretreatment is like treating the symptoms only; but at present it’s not clear what kind of filtration can be used to effectively remove metal ions.
Try using a magnetic filter? I used it before in a magazine on slurry filtration of metals; I’m not sure whether metal ions can be filtered out
It is difficult to achieve satisfactory results with either estimation method; the heat exchanger gets clogged by crystalline deposits, and the key lies in whether the design of the evaporator is reasonable
At first, I planned to change our plug-type filter to a tubular type, but I thought that would only provide a temporary solution, as crystallization would still occur on the surface of the tubes.
I haven’t come across this type of filter before; I’d like to learn more about it first. Thank you. Have you used this type of filter before?
Have you considered using resin to remove metal ions?
Our company specializes in solving the challenges associated with the chemical cleaning of calcium sulfate composite scale
First, metal ions need to be removed. Our company has cases where we handled this in exactly this way; you can get in touch with me