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Author:

吴玉锋 (吴玉锋.) (Scholars:吴玉锋) | 张书豪 (张书豪.) | 戴煜 (戴煜.) | 周强 (周强.) | 章启军 (章启军.) | 王维 (王维.)

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incoPat zhihuiya

Abstract:

本发明公开了一种废弃发光二极管封装材料热解处理协同荧光粉稀土回收方法。基于有机高分子化合物的热解特性,催化热解发光二极管中有机高分子物质,并将热解残渣中的碳转化为水煤气,实现发光二极管的高效拆解,解决了传统机械拆解方法存在发光二极管组分混杂、荧光粉中稀土元素回收困难等问题,生成的热解气和水煤气可为热解系统持续供能,并回收烟气中的热量,节约能源;同时,基于荧光粉的化学溶解反应机理,采用碱熔‑酸浸联合工艺高效回收废弃发光二极管荧光粉中稀土元素,可实现废弃发光二极管荧光粉中稀土元素的梯次浸出,沉淀回收稀土草酸盐,大大降低后期分离提纯的难度。

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Patent Info :

Type: 发明授权

Patent No.: CN202010662003.7

Filing Date: 2020-07-10

Publication Date: 2021-08-13

Pub. No.: CN111826177B

Applicants: 北京工业大学;;湖南顶立科技有限公司

Legal Status: 授权

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 3

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