Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Recycling and innocent treatment method for lithium slag
The invention discloses a recycling and harmless treatment method for lithium slag. The lithium slag treatment method comprises the following steps: S1, mixing lithium slag with a sulfuric acid-containing material to obtain a pulpified mixture; s2, roasting the pulpified mixed material at the temperature of 180-750 DEG C to obtain roasting slag, and performing water leaching and filtering to obtain leaching slag and leaching liquid; and S3, drying the leaching residues, adding an alkaline substance, carrying out ball milling, and taking the ball-milled mixture as the cement admixture. According to the method, the sulfuric acid-containing material is adopted as the additive, so that the roasting temperature is remarkably reduced, elements such as lithium, sodium, potassium and aluminum can be massively leached, the highest leaching rates of the lithium, the sodium, the potassium and the aluminum are 97.02%, 78.41%, 51.79% and 93.21%, the energy consumption is reduced, and the benefit of resource utilization is improved. The technological process is simple, energy consumption is low, recycling and harmless treatment of the lithium slag can be achieved at the same time, and certain economic and social benefits are achieved.
本发明公开了一种锂渣资源化无害化处理方法。上述锂渣处理方法，包括以下步骤：S1混合锂渣与含硫酸物料，得到浆化混料；S2以180～750℃的温度焙烧所述浆化混料，得到焙烧渣，经水浸、过滤，得到浸出渣和浸出液；S3烘干所述浸出渣，加入碱性物质后进行球磨，球磨后的混料作为水泥掺合料。本发明采用含硫酸物料作为添加剂，显著降低了焙烧温度，使锂、钠、钾、铝等元素能够被大量浸出，锂、钠、钾、铝最高浸出率为97.02％、78.41％、51.79％、93.21％，有助于减少能耗并提升资源化利用的效益。本发明的工艺流程简单、能耗低，可同时实现锂渣的资源化与无害化处理，具有一定的经济和社会效益。
Recycling and innocent treatment method for lithium slag
The invention discloses a recycling and harmless treatment method for lithium slag. The lithium slag treatment method comprises the following steps: S1, mixing lithium slag with a sulfuric acid-containing material to obtain a pulpified mixture; s2, roasting the pulpified mixed material at the temperature of 180-750 DEG C to obtain roasting slag, and performing water leaching and filtering to obtain leaching slag and leaching liquid; and S3, drying the leaching residues, adding an alkaline substance, carrying out ball milling, and taking the ball-milled mixture as the cement admixture. According to the method, the sulfuric acid-containing material is adopted as the additive, so that the roasting temperature is remarkably reduced, elements such as lithium, sodium, potassium and aluminum can be massively leached, the highest leaching rates of the lithium, the sodium, the potassium and the aluminum are 97.02%, 78.41%, 51.79% and 93.21%, the energy consumption is reduced, and the benefit of resource utilization is improved. The technological process is simple, energy consumption is low, recycling and harmless treatment of the lithium slag can be achieved at the same time, and certain economic and social benefits are achieved.
本发明公开了一种锂渣资源化无害化处理方法。上述锂渣处理方法，包括以下步骤：S1混合锂渣与含硫酸物料，得到浆化混料；S2以180～750℃的温度焙烧所述浆化混料，得到焙烧渣，经水浸、过滤，得到浸出渣和浸出液；S3烘干所述浸出渣，加入碱性物质后进行球磨，球磨后的混料作为水泥掺合料。本发明采用含硫酸物料作为添加剂，显著降低了焙烧温度，使锂、钠、钾、铝等元素能够被大量浸出，锂、钠、钾、铝最高浸出率为97.02％、78.41％、51.79％、93.21％，有助于减少能耗并提升资源化利用的效益。本发明的工艺流程简单、能耗低，可同时实现锂渣的资源化与无害化处理，具有一定的经济和社会效益。
Recycling and innocent treatment method for lithium slag
一种锂渣资源化无害化处理方法
ZHU SHUN (Autor:in) / YAN GUOMENG (Autor:in) / LIU YONGFENG (Autor:in) / JIANG GUOMIN (Autor:in) / HU MING (Autor:in)
05.07.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
C01D
Verbindungen der Alkalimetalle, d.h. des Lithiums, Natriums, Kaliums, Rubidiums, Cäsiums oder Franciums
,
COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
/
C22B
PRODUCTION OR REFINING OF METALS
,
Gewinnen oder Feinen von Metallen
Method and equipment for resource utilization and innocent treatment of manganese slag
| Europäisches Patentamt | 2023
| Europäisches Patentamt | 2024