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2025 02 v.44 238-246
热活化强化盐酸浸出煤矸石中的铁试验研究
基金项目(Foundation): 贵州省教育厅项目(黔教技[2024]157号,黔教技[2024]152号); 六盘水市科技局科技发展项目(52020-2024-0-2-8); 六盘水师范学院重点学科建设项目(LPSSYZDXK2022001); 贵州省大学生创新训练计划项目(S202310977119)
邮箱(Email): may_kmust11@163.com;
DOI: 10.13355/j.cnki.sfyj.2025.02.013
中文作者单位:

六盘水师范学院土木与规划学院;六盘水师范学院化学与材料工程学院;

摘要(Abstract):

研究了采用热活化强化盐酸浸出法从高硅铝比、高铁煤矸石中脱除铁,考察了煅烧温度、煅烧时间、盐酸浓度、浸出温度、液固质量比、浸出时间对铁浸出率的影响,并通过正交试验优化了工艺条件。结果表明:在煅烧温度500℃、煅烧时间1 h、盐酸浓度20%、浸出时间3 h、浸出温度90℃、液固质量比4/1的优化条件下,Fe浸出率为94.25%。该法能高效脱除煤矸石中的铁,同时使Si、Al元素得到有效富集,可为煤矸石资源化利用提供一定技术参考。

关键词(KeyWords): 煤矸石;铁;浸出;煅烧;活化;盐酸
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基本信息:

DOI:10.13355/j.cnki.sfyj.2025.02.013

中图分类号:TD849.5

引用信息:

[1]张明贤,袁富琴,马爱元等.热活化强化盐酸浸出煤矸石中的铁试验研究[J].湿法冶金,2025,44(02):238-246.DOI:10.13355/j.cnki.sfyj.2025.02.013.

基金信息:

贵州省教育厅项目(黔教技[2024]157号,黔教技[2024]152号); 六盘水市科技局科技发展项目(52020-2024-0-2-8); 六盘水师范学院重点学科建设项目(LPSSYZDXK2022001); 贵州省大学生创新训练计划项目(S202310977119)

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