公开(公告)号：US3539456A

公开(公告)日：1970-11-10

申请号：US3539456D

申请日：1968-06-25

Applicant: ALUMINUM CO OF AMERICA

Inventor： SMIDS RONALD E

IPC: C25C3/20 ,  C22D3/12

CPC classification number: C25C3/20

公开(公告)号：US3508908A

公开(公告)日：1970-04-28

申请号：US3508908D

申请日：1966-09-06

Applicant: CONZINC RIOTINTO LTD ,  COMMW SCIENT IND RES ORG

Inventor： HERWIG GEORGE LANG ,  FOLEY ERNEST

IPC: C22B5/04 ,  C22B21/00 ,  C25C3/06 ,  C22B21/02 ,  C22D3/12

CPC classification number: C22B5/04 ,  C22B21/0046 ,  C25C3/06

公开(公告)号：US3457158A

公开(公告)日：1969-07-22

申请号：US3457158D

申请日：1964-10-02

Applicant: REYNOLDS METALS CO

Inventor： BULLOUGH VAUGHN L

IPC: C25C3/08 ,  C22D3/12 ,  C22D3/02

CPC classification number: C25C3/085

公开(公告)号：US3904494A

公开(公告)日：1975-09-09

申请号：US41939073

申请日：1973-11-27

Applicant: ALUMINUM CO OF AMERICA

Inventor： JACOBS STANLEY C ,  SCHOENER RONALD C

IPC: B01D53/68 ,  C25C3/22 ,  C22D3/12 ,  B01D53/00 ,  B01D59/08

CPC classification number: C25C3/22 ,  B01D53/68

Abstract: Recycle system for the recovery and reuse of the effluent gas and additional values emitted in production of aluminum by electrolysis of aluminum chloride.

Abstract translation: 用于回收和再利用废气的循环系统以及通过电解氯化铝生产铝的附加值。

公开(公告)号：US3899402A

公开(公告)日：1975-08-12

申请号：US43616174

申请日：1974-01-24

Applicant: ALUSUISSE

Inventor： CHAUDHURI KIRANENDU B

IPC: C25C3/20 ,  C22D3/12 ,  C22D3/02

CPC classification number: C25C3/20

Abstract: The metal height to be tapped is determined by using the amount of ampere-hours and two positions of the anode beam. Corrections are made for changing of the thickness of the lateral ledges of frozen electrolyte.

Abstract translation: 要敲击的金属高度通过使用阳极梁的安培小时数和两个位置来确定。 更正冷冻电解液侧壁的厚度。

公开(公告)号：US3888747A

公开(公告)日：1975-06-10

申请号：US29840572

申请日：1972-10-18

Applicant: NAT SOUTHWIRE ALUMINUM

Inventor： MURPHY JOSEPH A

IPC: C25C3/20 ,  C22D3/12 ,  B01K3/00 ,  C22D3/02

CPC classification number: C25C3/20

Abstract: A method involving the production of metal, in particular, aluminum by providing an electrolytic bath containing dissolved oxide of the metal to be produced in a reduction cell. A direct current flows through the bath and metal is collected on the bottom of the reduction cell. The method includes sensing the voltage drop across the cell and determining when this voltage exceeds a given level as an indication of anode effect. The method preferably involves extinguishing the anode effects which may occur. The apparatus for producing metal includes at least one reduction cell having electrodes for delivering direct current to an electrolytic bath containing dissolved oxide of the metal. An anode effect detector is operatively arranged to sense the voltage of the reduction cell and produces an output signal whenever this voltage exceeds a given level indicating the existence of an anode effect. The apparatus preferably includes devices responsive to the output from the anode effect detector for extinguishing the detected anode effects which may occur.

公开(公告)号：US3859184A

公开(公告)日：1975-01-07

申请号：US37803273

申请日：1973-07-10

Applicant: ALUSUISSE

Inventor： CHAUDHURI KIRANENDU ,  BACHOFNER PETER

IPC: C25C3/20 ,  C22D3/12 ,  B01K3/00

CPC classification number: C25C3/20

Abstract: A method of operation of a cell for recovery of aluminium by electrolysis of aluminium oxide in a fluoride melt, in which the value of electrical energy supplied to the cell is ascertained over successive intervals of time and each value is compared with a desired value of the electrical energy supply for the same interval based upon a desired rate of energy supply, and any difference between desired and actual value for each interval is added, with appropriate sign, to a cumulative total, and when the cumulative total exceeds a predetermined value then the average interpolar distance is increased or decreased in the sense tending to establish a rate of energy supply more nearly equal to the desired rate.

公开(公告)号：US3855086A

公开(公告)日：1974-12-17

申请号：US37480373

申请日：1973-06-28

Applicant: ALUMINUM CO OF AMERICA

Inventor： SLEPPY W ,  CAMPBELL R

IPC: C25C3/06 ,  C25C3/18 ,  C22D3/12

CPC classification number: C25C3/18 ,  C25C3/06

Abstract: In the operation of a cell for the electrolytic reduction of Al2O3 dissolved in a cryolite bath of aluminum metal utilizing a carbon anode, the improvement wherein there is provided at the anode an atmosphere containing water in amounts effective for preventing anode dusting.

Abstract translation: 在利用碳阳极溶解在铝金属的冰晶石槽中的Al 2 O 3的电解还原电池的操作中，其中在阳极处设置有用于防止阳极撒粉的量的含有水的气氛。

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。

公开(公告)号：US3839167A

公开(公告)日：1974-10-01

申请号：US37480573

申请日：1973-06-28

Applicant: ALUMINUM CO OF AMERICA

Inventor： SLEPPY W

IPC: C25C3/06 ,  C25C3/18 ,  C22D3/12 ,  C22D3/02

CPC classification number: C25C3/06 ,  C25C3/18

Abstract: Use of an alumina which has a total water of 3 to 20 wt.-percent and a surface area of at least 45 m2/g as cell feed improves the efficiency of operation of an electrolytic cell for reduction of alumina to aluminum.

Abstract translation: 使用总水为3〜20重量％，表面积为45m 2 / g以上的氧化铝作为电池进料，提高了将氧化铝还原为铝的电解槽的运转效率。