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Method for producing early strength cement from lithium slag
The invention discloses a method for producing early strength cement from lithium slag, and belongs to the technical field of industrial waste residue utilization and cement building materials. According to the invention, the lithium slag obtained after lithium carbonate is extracted by leaching lithium ore with water in a sulfate roasting process is used as a cement admixture, and the cement admixture is mixed with ordinary cement or clinker, gypsum and limestone to obtain the early strength cement with excellent performance. The mixing amount of the lithium slag can reach 30%, so that the production and manufacturing cost can be greatly reduced. The early-strength cement prepared by the process method is short in setting time, the cement strength in each period is close to that of commercially available common 42.5 R early-strength cement, and the early-strength cement has a good application prospect.
本发明公开了一种锂渣生产早强水泥的方法，属于工业废渣利用及水泥建材技术领域。本发明采用硫酸盐焙烧工艺法锂矿水浸提取碳酸锂后的锂渣作为水泥混合材，与普通水泥或熟料、石膏、石灰石互掺即得一种性能优异的早强水泥。本发明锂渣掺量可达30％，因此能够大幅度降低生产制作成本。本发明工艺方法制得的早强水泥凝结时间短，各时期水泥强度均接近于市售普通42.5R早强水泥，具有良好的应用前景。
Method for producing early strength cement from lithium slag
The invention discloses a method for producing early strength cement from lithium slag, and belongs to the technical field of industrial waste residue utilization and cement building materials. According to the invention, the lithium slag obtained after lithium carbonate is extracted by leaching lithium ore with water in a sulfate roasting process is used as a cement admixture, and the cement admixture is mixed with ordinary cement or clinker, gypsum and limestone to obtain the early strength cement with excellent performance. The mixing amount of the lithium slag can reach 30%, so that the production and manufacturing cost can be greatly reduced. The early-strength cement prepared by the process method is short in setting time, the cement strength in each period is close to that of commercially available common 42.5 R early-strength cement, and the early-strength cement has a good application prospect.
本发明公开了一种锂渣生产早强水泥的方法，属于工业废渣利用及水泥建材技术领域。本发明采用硫酸盐焙烧工艺法锂矿水浸提取碳酸锂后的锂渣作为水泥混合材，与普通水泥或熟料、石膏、石灰石互掺即得一种性能优异的早强水泥。本发明锂渣掺量可达30％，因此能够大幅度降低生产制作成本。本发明工艺方法制得的早强水泥凝结时间短，各时期水泥强度均接近于市售普通42.5R早强水泥，具有良好的应用前景。
Method for producing early strength cement from lithium slag
一种锂渣生产早强水泥的方法
DENG BAOJUN (author) / LIU HUAFENG (author) / LIU KAI (author) / YANG HONGCHAO (author)
2022-03-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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