关键词: 锶渣, 盐酸, 氯化锶

Abstract:

At present,the waste residue produced by factories producing strontium carbonate and other strontium salts contains up to 10%（mass fraction） strontium,which is not used and causes both environmental pollution and resource waste.With these strontium waste as raw material,high economic value of strontium chloride products was developed.The process route was determined through experiments,and the effects of the extraction time and the extraction temperature on the extraction rate were investigated respectively.The optimum technological conditions were determined by single factor experiment as follows：the leaching time was 4 h and the leaching temperature was 80 ℃.The method of removing impurities in the strontium chloride solution was studied,and the problem of separating magnesium and calcium from a large amount of strontium was solved.The final test samples reached the quality requirements of the products.

Key words: strontium residue, hydrochloric acid, strontium chloride