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The invention provides a resource recycling method for lithium-aluminum electrolyte removal slag and application of the resource recycling method. The method comprises the steps that firstly, lithium-aluminum electrolyte removal slag alpha and a hydrochloric acid solution are mixed, stirred and leached, and lithium-aluminum electrolyte removal slag beta is obtained after filtering; then mixing the lithium-aluminum-removed electrolyte slag beta with concentrated sulfuric acid, stirring and leaching, carrying out solid-liquid separation, and carrying out primary roasting on obtained centrifugal filter residues to obtain roasted slag A; finally, the roasting slag A is subjected to secondary roasting, roasting slag B is obtained, after water leaching treatment, an aluminum oxide product is obtained, and the problems that in the prior art, when resourceful treatment is conducted on the aluminum electrolyte slag, energy consumption is large, impurity removal is difficult, fluorine and aluminum are not effectively separated, the product is not pure, and the economic value is low are solved; and the safety and economical efficiency of reutilization of the aluminum electrolyte slag are improved. The invention further provides application of the resource recycling method in preparation of the high-aluminum refractory material.
本发明提供了一种脱锂铝电解质渣的资源化回收方法及其应用，该方法先将脱锂铝电解质渣α和盐酸溶液混合搅拌浸出，过滤后得到脱锂铝电解质渣β；然后将所述脱锂铝电解质渣β和浓硫酸混合后搅拌浸出，固液分离，所得离心滤渣进行一次焙烧，得到焙烧渣A；最后将所述焙烧渣A进行二次焙烧，得到焙烧渣B，水浸处理后，得到氧化铝产品，解决了现有技术中对铝电解质渣进行资源化处理时存在的能耗大、除杂难、氟铝未有效分离、产品不纯且经济价值低等问题，提升了铝电解质渣再利用的安全性和经济性。本发明还提供了资源化回收方法在制备高铝耐火材料中的应用。
The invention provides a resource recycling method for lithium-aluminum electrolyte removal slag and application of the resource recycling method. The method comprises the steps that firstly, lithium-aluminum electrolyte removal slag alpha and a hydrochloric acid solution are mixed, stirred and leached, and lithium-aluminum electrolyte removal slag beta is obtained after filtering; then mixing the lithium-aluminum-removed electrolyte slag beta with concentrated sulfuric acid, stirring and leaching, carrying out solid-liquid separation, and carrying out primary roasting on obtained centrifugal filter residues to obtain roasted slag A; finally, the roasting slag A is subjected to secondary roasting, roasting slag B is obtained, after water leaching treatment, an aluminum oxide product is obtained, and the problems that in the prior art, when resourceful treatment is conducted on the aluminum electrolyte slag, energy consumption is large, impurity removal is difficult, fluorine and aluminum are not effectively separated, the product is not pure, and the economic value is low are solved; and the safety and economical efficiency of reutilization of the aluminum electrolyte slag are improved. The invention further provides application of the resource recycling method in preparation of the high-aluminum refractory material.
本发明提供了一种脱锂铝电解质渣的资源化回收方法及其应用，该方法先将脱锂铝电解质渣α和盐酸溶液混合搅拌浸出，过滤后得到脱锂铝电解质渣β；然后将所述脱锂铝电解质渣β和浓硫酸混合后搅拌浸出，固液分离，所得离心滤渣进行一次焙烧，得到焙烧渣A；最后将所述焙烧渣A进行二次焙烧，得到焙烧渣B，水浸处理后，得到氧化铝产品，解决了现有技术中对铝电解质渣进行资源化处理时存在的能耗大、除杂难、氟铝未有效分离、产品不纯且经济价值低等问题，提升了铝电解质渣再利用的安全性和经济性。本发明还提供了资源化回收方法在制备高铝耐火材料中的应用。
Resource recycling method for lithium-aluminum electrolyte removal slag and application of resource recycling method
一种脱锂铝电解质渣的资源化回收方法及其应用
2024-09-10
Patent
Electronic Resource
Chinese
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