Abstract
For the first time it is proposed to produce lithium hydroxide monohydrate as a primary derivative product from hydromineral raw materials. This technology is based on the primary lithium concentrate obtained by enriching the lithium-bearing brines and concentrating by the combined method. The produced concentrate is a pregnant lithium chloride solution which is subjected to the electrochemical conversion: LiCl ⋅ LiOH. The lithium hydroxide monohydrate crystals are extracted from the lithium hydroxide solution and, after washing, they correspond to the LGO-1 brand.
Similar content being viewed by others
REFERENCES
Kotsupalo, N.P. and Ryabtsev, A.D., Khimiya i tekhnologiya polucheniya soedinenii litiya iz litienosnogo gidromineral’nogo syr’ya (Chemistry and Technology of the Production of Lithium Compounds from Lithium-Containing Hydromineral Raw Materials), Novosibirsk: GEO, 2008.
Kotsupalo, N.P. and Ryabtsev, A.D., Interkalyatsionnye soedineniya gidroksida alyuminiya s solyami litiya i ikh ispol’zovanie v promyshlennoi praktike (Intercalation Compounds of Aluminum Hydroxide with Lithium Salts and Their Use in Industrial Practice), Novosibirsk: GEO, 2016.
Kotsupalo, N.P., Ryabtsev, A.D., and Titarenko, V.I., Kompleksnaya pererabotka polikomponentnykh litienosnykh rassolov s predvaritel’nym ikh obogashcheniem po litiyu (Integrated Processing of Multicomponent Lithium-Containing Brines with Their Preliminary Enrichment in Lithium), Novosibirsk: GEO, 2014.
Alekseev, S.V., Vakhromeev, A.G., Kotsupalo, N.P., and Ryabtsev, A.D., Promyshlennye rassoly Sibirskoi platformy. Gidrogeologiya, burenie i dobycha, pererabotka, utilizatsiya (Industrial Brines of the Siberian Platform: Hydrogeology, Drilling, Production, Processing, and Recycling), Irkutsk: Geograf, 2014.
Ryabtsev, A.D., Kotsupalo, N.P., Kishkan’, L.N., et al., RF Patent 2157338, Izobret., Polezn. Modeli, 2000, no. 18.
Ryabtsev, A.D., Nemkov, N.M., Titarenko, V.I., and Kotsupalo, N.P., RF Patent 2656452, Izobret., Polezn. Modeli, 2018, no. 16.
Author information
Authors and Affiliations
Corresponding author
Additional information
Translated by E. Khozina
Rights and permissions
About this article
Cite this article
Ryabtsev, A.D., Nemkov, N.M., Kotsupalo, N.P. et al. Production of Lithium Hydroxide Monohydrate from Natural Brine. Theor Found Chem Eng 53, 626–631 (2019). https://doi.org/10.1134/S0040579519040079
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0040579519040079