For the evaporation of hydrogen bromide and potassium bromide, what type of evaporator should be used? I would appreciate advice from those with expertise
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One of our wastewater streams contains low concentrations of hydrogen bromide and potassium bromide; we want to carry out evaporation treatment for it. What type of evaporator should be used? I would appreciate advice from those with expertise in this area! ! !
This post was last edited by repurb on 2016-9-21 at 16:06. 1. A enamel distillation kettle can be used, with steam being passed through the jacket to heat it up. 2. Generally, the price of enamel reactors is slightly higher; used equipment can be considered if the requirements are not stringent. 3. The medium is wastewater that also contains hydrogen bromide; in the event of a leak, it can cause significant harm. Given the current safety and environmental conditions, it is recommended to use enamel-lined equipment.
Apart from enamel, which metal option can be chosen? Thanks :)
I. Perhaps I expressed myself too gently; in your case, the use of metal materials cannot be considered. Firstly, wastewater containing hydrogen bromide and potassium bromide is itself somewhat acidic； Second, as a halogen element, bromine causes corrosion of metals to a degree second only to chloride ions, especially in the case of stainless steel. Third, since concentration must be increased through evaporation, the remaining concentration rises, and ion activity increases in high-temperature environments, accelerating the corrosion of metals. II. If metal materials must be used due to certain constraints, duplex stainless steel 2205# can be employed (it is more expensive)
Thank you. There are some special requirements regarding the manufacturing process; a metal material is needed. Can 2205 be used in such conditions? Is titanium resistant to bromine corrosion? Thank you
It’s not a major issue; it’s best to consult the manufacturer of the relevant container to get confirmation. I’m not very familiar with titanium materials; it is recommended to consult the manufacturer