公开(公告)号：US3829365A

公开(公告)日：1974-08-13

申请号：US37803373

申请日：1973-07-10

Applicant: ALUSUISSE

Inventor： CHAUDHURI K ,  BACHOFNER P

IPC: C25C3/20 ,  B01K3/00 ,  C22D3/12

CPC classification number: C25C3/20

Abstract: METHOD OF OPERATION O A CELL FOR RECOVERY OF ALUMINUM BY ELECTROLYSIS OF ALUMINUM OXIDE IN A FLUORIDE MELT. IN THE MELT THE VALUES OF INSTANTANEOUS RESISTANCE OF THE CELL ARE CALCUALTED FROM INSTANTANEOUS VALUES OF CELL CURRENT INTENSITY AND CELL VOLTAGE WHICH ARE SAMPLED BY A COMPUTER AT REGULAR INTERVALS OF TIME DURING ELECTROLYSIS, EXCEPT DURING PERIODS ASSOCIATED WITH ANODE EFFECTS AND WITH MANIPULATIONS ON THE CELL, THE ABSOLUTE DIFFERENCE BETWEEN EACH VALUE OF INSTANTANEOUS RESISTANCE AND THE BASE RESISTANCE

OF THE CELL IS ADDED TO A CUMULATIVE TOTAL; A DISTURBANCE IS INDICATED WHEN THE CUMULATIVE TOTAL EXCEEDS A PREDETERMINED VALUE, WHEREUPON THE RESISTANCE OF THE CELL IS RAISED UNTIL THE CAUSE OF THE DISTURBANCE IS ELIMINATED.

公开(公告)号：US3850768A

公开(公告)日：1974-11-26

申请号：US37823373

申请日：1973-07-10

Applicant: ALUSUISSE

Inventor： SCHMIDT HATTING W ,  CHAUDHURI K ,  BACHOFNER P

IPC: C25C3/20 ,  C22D3/12

CPC classification number: C25C3/20

Abstract: Method of controlling the supply of Al2O3 during the operation of a cell for electrolytic recovery of aluminum in a fluoride melt.

Abstract translation: 在氟化物熔体中电解铝回收电池的操作期间控制Al2O3供应的方法。