Method and device for treating a contaminated alkaline amino acid saline solution

摘要

A method for treating a contaminated alkaline amino acid salt solution is provided. First, carbon dioxide is introduced into the amino acid salt solution, with the result that carbonate or carbonate salts is or are precipitated, these being filtered off. The remaining filtrate is then cooled, amino acid or amino acid salts being crystallized out and likewise being filtered off. The amino acid or amino acid salt is then dissolved again, with the result that a treated amino acid salt solution is recovered.

主权项

1. A method for treating a contaminated alkaline amino acid salt solution, comprising the steps of:
introducing carbon dioxide into the amino acid salt solution and consequent precipitation of carbonate and/or carbonate salts, filtering off of the precipitated carbonate and/or carbonate salts, cooling the filtrate and consequent crystallizing out of the amino acid and/or amino acid salt, filtering off of the crystallized amino acid and/or amino acid salt, dissolving the filtered-off amino acid and/or amino acid salt and consequently recovering a treated amino acid salt solution; and dissolving the precipitated carbonate and/or carbonate salts in the treated amino acid salt solution.