一种工业废硫资源化制备硫化锂的方法

By using industrial waste salt and waste carbon as raw materials, and employing steps such as catalytic granulation, reduction calcination, acid leaching, and nano-interface catalytic refining, the problems of expensive raw materials and environmental risks in lithium sulfide production have been solved, achieving low-cost, green preparation of high-purity lithium sulfide and resource utilization of waste.

CN121269636BActive Publication Date: 2026-07-17CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
Filing Date
2025-11-21
Publication Date
2026-07-17

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Abstract

本发明提供一种工业废硫资源化制备硫化锂的方法，包括：S1、取含硫废盐和废炭材料混合，经催化造粒、还原煅烧和酸性浸出，得到含硫化物的混合气；S2、将所得含硫化物的混合气和氢氧化锂在射流反应器中反应得到硫化锂粗品；S3、将所得硫化锂粗品和硫化钠乙醇溶液在催化剂作用下精制，经分离纯化减压蒸馏得到硫化锂。本发明实现了工业废盐 / 废炭的低成本、绿色环保资源化，生产出满足固态电池要求的高纯度硫化锂，具有显著的经济、环境和社会效益。
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Citation Information

Patent Citations

  • Method for co-processing industrial solid waste and recycling industrial waste salt

    CN114769293A

  • Lithium sulfide and lithium carbonate co-production preparation method, product and application

    CN117401699A