| 摘要 |
An environmentally friendly treatment method of refining magnesium slag, comprising the following steps: step a, fusing and screening the magnesium slag to obtain magnesium granules and magnesium slag crude solution; step b, removing moisture from the filtrate produced by filtering the magnesium slag crude solution screened in step a, to obtain combined chlorine salt; step c, employing ammonium sulfate to dissolve the filter residues produced after filtration in step b, and, after magnesium deposition reaction and post-treatment, obtaining high-purity magnesium oxide. The method innovatively solves the problem of recovering, treating, and refining magnesium slag, with a high recovery rate higher than 90%, while greatly reducing solid waste discharge and the pollution thereof to the environment; in addition, the recovered products can be reused and have high purity, thus significantly reducing pollution to the environment and meeting requirements of energy conservation and emission reduction. |
