A collector for laminar lepidolite flotation and its application in the beneficiation process of lithium ore

By designing a compound collector, the problems of difficult contact, weak adsorption, and easy detachment of flaky lithium mica during flotation were solved, achieving efficient separation and enrichment of lithium mica and improving concentrate recovery and selectivity.

CN122400007APending Publication Date: 2026-07-17INST OF RESOURCES UTILIZATION & RARE EARTH DEV GUANGDONG ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INST OF RESOURCES UTILIZATION & RARE EARTH DEV GUANGDONG ACAD OF SCI
Filing Date
2026-04-23
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing collectors have problems such as difficulty in contact, weak adsorption, and easy detachment when treating flaky lithium mica, resulting in low concentrate recovery rate and difficulty in effectively separating and enriching this type of mineral.

Method used

A compound collector consisting of a main collector, a synergistic collector, an anionic synergist, a penetrating wetting agent, and an adsorption stabilizer is used. Through molecular design and compounding, the contact probability with the stacked lithium iron phosphate mica is increased, the adsorption bond force is strengthened, and the stability of the adsorption layer is improved.

Benefits of technology

It significantly improves the separation efficiency and flotation recovery rate of stacked lithium iron ore mica, forms a strong hydrophobic adsorption layer, reduces the loss of coarse particles in tailings, and improves concentrate grade and recovery rate.

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Abstract

本发明公开了一种用于叠片状铁锂云母浮选的捕收剂及其在锂矿石的选矿工艺中的应用。该捕收剂，以质量分数计，由以下活性组分及溶剂复配而成：主捕收剂40%~52%，协同捕收剂10%~18%，阴离子增效剂20%~28%，渗透润湿剂3%~8%，吸附稳定剂0.5%~3%，余量为溶剂；所述的主捕收剂为混合烷基伯胺，协同捕收剂为碳原子数为8~20的直链烷基伯胺，阴离子增效剂为碳原子数为10~22的烷基磺酸盐，渗透润湿剂为碳原子数为8~18的脂肪醇聚氧乙烯醚，吸附稳定剂为聚乙烯醇。本发明通过针对性的分子设计与复配，解决常规云母捕收剂在处理叠片状铁锂云母时存在的 “接触难、吸附弱、脱落易”连锁性技术难题，从而显著提升叠片状铁锂云母的分选效率与浮选回收率。
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