FIELD: metallurgy.
SUBSTANCE: invention relates to production of aluminum by electrolysis of cryolite-alumina melt, in particular to method of controlling content of alumina during electrolysis of cryolite-alumina melt. Method includes determination of empirical linear dependence of concentration of alumina in cryolite-alumina melt against anode overvoltage, which is corrected by means of system of automatic supply of alumina into electrolytic cell, tuned to change of anode overvoltage, measured by means of gas electrode from mixture of CO and CO2.
EFFECT: possibility of fast and accurate determination and monitoring of concentration of alumina in cryolite-alumina melt due to stability, accuracy and reliability of measurement of value of anode overvoltage.
1 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR DETERMINATION OF ALUMINA CONTENT IN CRYOLITE-ALUMINA MELT AND ELECTROCHEMICAL DEVICE FOR ITS IMPLEMENTATION | 2020 |
|
RU2748146C1 |
| METHOD OF ALUMINA CONCENTRATION ESTIMATE IN CRYOLITE-ALUMINA MELT AND FACILITY FOR IMPLEMENTATION OF THIS METHOD | 2007 |
|
RU2370573C2 |
| METHOD OF CONTROLLING SUPPLY OF ALUMINA TO ALUMINIUM ELECTROLYSIS CELL | 2023 |
|
RU2813922C1 |
| METHOD OF DEFINING ALUMINA CONCENTRATION IN CRYOLITE-ALUMINA MELT | 2011 |
|
RU2467095C1 |
| CARBON REFERENCE ELECTRODE | 2010 |
|
RU2440443C1 |
| ELECTROLYTIC METHOD FOR CONTINUOUS PRODUCTION OF ALUMINIUM ALLOY WITH SCANDIUM | 2015 |
|
RU2599312C1 |
| METHOD OF AUTOMATIC CONTROL OF DISFUNCTIONS OF AAF SYSTEM OF ALUMINIUM ELECTROLYSER | 2016 |
|
RU2631072C1 |
| DEVICE FOR DETERMINING CONTENT OF ALUMINA IN ELECTROLYTE OF ALUMINIUM ELECTROLYTIC CELL | 2013 |
|
RU2584631C2 |
| METHOD OF FEEDING ELECTROLYTIC CELL WITH ALUMINA AND DEVICE FOR ITS IMPLEMENTATION | 2019 |
|
RU2728985C1 |
| METHOD OF ALUMINIUM PRODUCTION | 0 |
|
SU1772219A1 |
