How to remove copper chloride from bromides
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How to remove copper chloride from bromides? Please give your advice
How much copper chloride is there, and what are the bromides? The conventional method is refinement.
2# jothan: Sodium bromide mother liquor, containing some sodium bromate; the copper content is around 1%. The subsequent process is electrolysis, which yields sodium bromate. Due to the excessive copper content, the electrolyte turns green under alkaline conditions, and the crystallization after electrolysis is uneven； Due to excessive chloride levels, chlorates are formed after electrolysis; the main component content is insufficient, which is a real problem.
3# swwsdwf I’m not very familiar with the purification processes in inorganic chemical engineering; the only method that comes to mind is recrystallization. Personal thought: Should the 1% content take into account suppression effects from the initial processing steps?
Adjust the pH level to precipitate the copper; chloride ions are a problem, but at the time of cooling and crystallization, such a low concentration shouldn’t have much of an impact, right?