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Treatment method of electrolytic aluminum solid waste
The invention provides a treatment method of electrolytic aluminum solid waste. The treatment method comprises the following steps: providing electrolytic aluminum solid wastes, wherein the electrolytic aluminum solid wastes comprise waste aluminum electrolyte, carbon residues and overhaul residues; the overhaul slag is sequentially subjected to coarse grinding treatment and sorting treatment, and non-carbonaceous solid waste and carbonaceous solid waste are obtained; mixing the carbonaceous solid waste, the waste aluminum electrolyte and the carbon residue to obtain a first mixture; carrying out flotation treatment on the first mixture to obtain waste electrolyte and carbon powder; and mixing the waste electrolyte and the composite activating agent, and sequentially carrying out medium-temperature activating treatment and filtering treatment to obtain aluminum fluoride and filtrate. According to the treatment method for the electrolytic aluminum solid waste, aluminum fluoride can be effectively recycled from the solid waste, and cyclic utilization of resources is achieved; meanwhile, the harm of harmful substances in the solid wastes to the environment can be reduced.
本申请提供了一种电解铝固体废弃物的处理方法。所述处理方法包括如下步骤：提供电解铝固体废弃物，电解铝固体废弃物包括废铝电解质、炭渣和大修渣；对大修渣依次进行粗磨处理和分拣处理，得到非碳质固体废料和碳质固体废料；将碳质固体废料、废铝电解质和炭渣混合，得到第一混合物；对第一混合物进行浮选处理，得到废电解质和碳粉；以及将废电解质和复合活化剂混合，依次进行中温活化处理和过滤处理，得到氟化铝和滤液。本申请提供的电解铝固体废弃物的处理方法，能够从固体废弃物中有效回收氟化铝，实现资源的循环利用；同时能够降低固体废弃物中有害物质对环境的危害。
Treatment method of electrolytic aluminum solid waste
The invention provides a treatment method of electrolytic aluminum solid waste. The treatment method comprises the following steps: providing electrolytic aluminum solid wastes, wherein the electrolytic aluminum solid wastes comprise waste aluminum electrolyte, carbon residues and overhaul residues; the overhaul slag is sequentially subjected to coarse grinding treatment and sorting treatment, and non-carbonaceous solid waste and carbonaceous solid waste are obtained; mixing the carbonaceous solid waste, the waste aluminum electrolyte and the carbon residue to obtain a first mixture; carrying out flotation treatment on the first mixture to obtain waste electrolyte and carbon powder; and mixing the waste electrolyte and the composite activating agent, and sequentially carrying out medium-temperature activating treatment and filtering treatment to obtain aluminum fluoride and filtrate. According to the treatment method for the electrolytic aluminum solid waste, aluminum fluoride can be effectively recycled from the solid waste, and cyclic utilization of resources is achieved; meanwhile, the harm of harmful substances in the solid wastes to the environment can be reduced.
本申请提供了一种电解铝固体废弃物的处理方法。所述处理方法包括如下步骤：提供电解铝固体废弃物，电解铝固体废弃物包括废铝电解质、炭渣和大修渣；对大修渣依次进行粗磨处理和分拣处理，得到非碳质固体废料和碳质固体废料；将碳质固体废料、废铝电解质和炭渣混合，得到第一混合物；对第一混合物进行浮选处理，得到废电解质和碳粉；以及将废电解质和复合活化剂混合，依次进行中温活化处理和过滤处理，得到氟化铝和滤液。本申请提供的电解铝固体废弃物的处理方法，能够从固体废弃物中有效回收氟化铝，实现资源的循环利用；同时能够降低固体废弃物中有害物质对环境的危害。
Treatment method of electrolytic aluminum solid waste
电解铝固体废弃物的处理方法
SHEN XIANG (author) / CHEN RUNDONG (author) / CHEN MIN (author) / CAO XINLE (author) / ZHAO XIA (author)
2024-11-12
Patent
Electronic Resource
Chinese
IPC:
C01F
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
,
Verbindungen der Metalle Beryllium, Magnesium, Aluminium, Calcium, Strontium, Barium, Radium, Thorium oder der Seltenen Erden
/
C01B
NON-METALLIC ELEMENTS
,
Nichtmetallische Elemente
/
C04B
Kalk
,
LIME
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