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Process method for reducing sulfur and alkali of lithium slag, solid waste lithium slag and application of solid waste lithium slag
The invention relates to the technical field of mineral processing engineering and the technical field of building material resource reutilization, and discloses a lithium slag sulfur and alkali reduction process method, solid waste lithium slag and application thereof.The lithium slag sulfur and alkali reduction process method comprises the steps that S1, lithium slag is leached with an acid solution, and then leaching liquid and acid leaching slag are obtained through filtering; wherein the mass ratio of the acid solution to the lithium slag is 100: (20-80); s2, water is added into the acid leaching residues, stirring and static soaking are conducted, a flotation agent and metal salt in the lithium residues are leached and dissolved, and first leaching liquid and first filter residues are obtained through filtering separation; s3, water is added into the first filter residues, stirring and static soaking are conducted, sulfate in the first filter residues is separated out, feldspar minerals are made to react, and a lithium slag and water mixture is obtained; s4, the PH value of the mixture of the filtered lithium slag and the water is adjusted to be neutral, second leaching liquid and second filter residues are obtained through filtering separation, and sulfate in the second filter residues is separated out; and S5, drying the second filter residues to obtain sulfur-reduced and alkali-reduced lithium residues.
本发明涉及矿物加工工程技术领域和建材资源化再利用技术领域，公开了一种锂渣降硫降碱的工艺方法、固废锂渣及其应用，包括：S1、用酸溶液对锂渣进行浸提，之后过滤得到浸出液和酸浸渣；其中酸溶液和锂渣的质量比为100:20‑80；S2、在酸浸渣中加入水，搅拌，静止浸泡，浸出溶解锂渣中的浮选剂、金属盐，过滤分离得到第一浸出液与第一滤渣；S3、在第一滤渣中加入水，搅拌，静止浸泡，将第一滤渣中硫酸盐析出，使长石类矿物发生反应，得到锂渣与水混合料；S4、将滤锂渣与水混合料的PH值调节至中性，过滤分离得到第二浸出液与第二滤渣，第二滤渣中硫酸盐析出；S5、将第二滤渣烘干得到降硫降碱的锂渣。
Process method for reducing sulfur and alkali of lithium slag, solid waste lithium slag and application of solid waste lithium slag
The invention relates to the technical field of mineral processing engineering and the technical field of building material resource reutilization, and discloses a lithium slag sulfur and alkali reduction process method, solid waste lithium slag and application thereof.The lithium slag sulfur and alkali reduction process method comprises the steps that S1, lithium slag is leached with an acid solution, and then leaching liquid and acid leaching slag are obtained through filtering; wherein the mass ratio of the acid solution to the lithium slag is 100: (20-80); s2, water is added into the acid leaching residues, stirring and static soaking are conducted, a flotation agent and metal salt in the lithium residues are leached and dissolved, and first leaching liquid and first filter residues are obtained through filtering separation; s3, water is added into the first filter residues, stirring and static soaking are conducted, sulfate in the first filter residues is separated out, feldspar minerals are made to react, and a lithium slag and water mixture is obtained; s4, the PH value of the mixture of the filtered lithium slag and the water is adjusted to be neutral, second leaching liquid and second filter residues are obtained through filtering separation, and sulfate in the second filter residues is separated out; and S5, drying the second filter residues to obtain sulfur-reduced and alkali-reduced lithium residues.
本发明涉及矿物加工工程技术领域和建材资源化再利用技术领域，公开了一种锂渣降硫降碱的工艺方法、固废锂渣及其应用，包括：S1、用酸溶液对锂渣进行浸提，之后过滤得到浸出液和酸浸渣；其中酸溶液和锂渣的质量比为100:20‑80；S2、在酸浸渣中加入水，搅拌，静止浸泡，浸出溶解锂渣中的浮选剂、金属盐，过滤分离得到第一浸出液与第一滤渣；S3、在第一滤渣中加入水，搅拌，静止浸泡，将第一滤渣中硫酸盐析出，使长石类矿物发生反应，得到锂渣与水混合料；S4、将滤锂渣与水混合料的PH值调节至中性，过滤分离得到第二浸出液与第二滤渣，第二滤渣中硫酸盐析出；S5、将第二滤渣烘干得到降硫降碱的锂渣。
Process method for reducing sulfur and alkali of lithium slag, solid waste lithium slag and application of solid waste lithium slag
锂渣降硫降碱的工艺方法、固废锂渣及其应用
WEI QI (author) / LU YA (author) / CHEN ZHONGFA (author) / SHI LINYUN (author) / YAN JUN (author) / XU WEI (author)
2024-01-09
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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