FIELD: chemistry.
SUBSTANCE: invention relates to production of secondary battery materials, such as lithium, and secondary battery raw materials-precursors Ni, Co, Mn (NCM) from black mass extracted from secondary battery scrap. Method includes calcination and pre-extraction steps, a first evaporation concentration step, a leaching step, a first purification step, subsequent extraction and supply steps, phosphate precipitation and sulphate production steps, stages of carbonate precipitation and hydroxide production, second stage of concentration by evaporation, stage of leaching with weak acid with production of NCM solution, second stage of purification, stage of NCM solution supply.
EFFECT: method increases degree of extraction of lithium and secondary battery precursor metals.
6 cl, 3 dwg, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| COMPLEX METHOD OF EXTRACTING NICKEL FOR EXTRACTING NICKEL OXIDE FROM RAW MATERIALS CONTAINING NICKEL | 2024 |
|
RU2841255C1 |
| METHOD OF PRODUCING AQUEOUS SOLUTION OF NICKEL SULPHATE FROM NICKEL-CONTAINING RAW MATERIAL | 2024 |
|
RU2838963C1 |
| COMPLEX METHOD OF EXTRACTING NICKEL FOR EXTRACTING NICKEL HYDROXIDE FROM RAW MATERIALS CONTAINING NICKEL | 2024 |
|
RU2838962C1 |
| METHOD AND DEVICE FOR PRODUCING LITHIUM HYDROXIDE AND LITHIUM CARBONATE | 2016 |
|
RU2684384C1 |
| METHOD OF OBTAINING LITHIUM CONCENTRATE FROM LITHIUM-BEARING NATURAL BRINES AND ITS PROCESSING | 2012 |
|
RU2516538C2 |
| METHOD FOR OBTAINING LITHIUM HYDROXIDE MONOHYDRATE OF HIGH PURITY FROM MATERIALS CONTAINING LITHIUM SALTS | 2021 |
|
RU2769609C2 |
| METHOD OF PURIFYING LITHIUM SALTS | 2020 |
|
RU2834777C1 |
| METHOD OF PRODUCING LITHIUM HYDROXIDE MONOHYDRATE FROM BRINES | 2019 |
|
RU2713360C2 |
| METHOD OF PRODUCTION OF HIGH-PURITY LITHIUM HYDROXIDE FROM NATURAL BRINES | 1998 |
|
RU2157338C2 |
| PROCESS OF EXTRACTING MONOHYDRATE OF HIGH-PURITY LITHIUM HYDROXIDE FROM MATERIALS CONTAINING LITHIUM CARBONATE | 2001 |
|
RU2196735C1 |
