公开(公告)号：US3786135A

公开(公告)日：1974-01-15

申请号：US18027671

申请日：1971-09-14

Applicant: ALUMINUM CO OF AMERICA

Inventor： KING L ,  KNAPP L ,  SCHOENER R ,  REMPER J ,  KLOAP N ,  STARNER B

IPC: B01D7/00 ,  B01D7/02 ,  C01F7/00 ,  C01F7/56 ,  C01F7/58 ,  C01F7/60 ,  C01F7/62

CPC classification number: B01D7/02 ,  C01F7/60 ,  C01P2004/03 ,  C01P2004/32 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2006/10 ,  C01P2006/20 ,  C01P2006/80

Abstract: RECOVERY OF SELECTIVELY CONSTITUTED HIGH PURITY ALUMINUM CHLORIDE FROM THE GASEOUS EFFLUENT OF THE CHLORINATION OF SODIUM CONTAMINATED ALUMINA INCLUDING THE STEPS OF PURIFYING SUCH GASEOUS EFFLUENT TO PROVIDE ESSENTIALLY CONTAMINANT-FREE ALUMINA CHLORIDE IN GASEOUS FORM IN A GASEOUS CARRIER THROUGH SELECTIVELY COOLING THE HOT GASEOUS EFFLUENT TO A FIRST TEMPERATURE RANGE WELL ABOVE THE AMBIENT CONDITION CONDENSATION TEMPERATURE OF ALUMINUM CHLORIDE YET SUFFICIENT TO CONDENSE A SELECTIVE PORTION OF THE CONDENSABLE CONSTITUENTS THEREIN INCLUDING A SUBSTANTIAL PORTION OF THE SODIUM ALUMINUM CHLORIDE VALUES THEREIN WITHIN CONDENSING APPRECIABLE AMOUNTS OF ALUMINUM CHLORIDE, INITIALLY SEPARATING FROM THE COOLED GASEOUS EFFLUENT ENTRAINED PARTICLES AND INITIALLY CONDENSED CONSTITUENTS, FURTHER REDUCING THE TEMPERATURE OF THE RESIDUAL COOLED GASEOUS EFFLUENT FROM THE FIRST STAGE SEPARATION TO A SECOND PREDETERMINED LOWER TEMPERATURE RANGE STILL ABOVE THE CONDENSATION TEMPERATURE OF ALUMINUM CHLORIDE TO EFFECT A FURTHER SELECTIVE CONDENSATION AND SEPARATION OF THE REMAINING CONDENSABLE CONSTITUENTS THEREIN, AND DIRECTLY DESUBLIMING THE ESSENTIALLY CONTAMINANT-FREE GASEOUS ALUMINA CHLORIDE VALUES FROM THE PURIFIED RESIDUAL GASEOUS EFFLUENT TO SELECTIVELY CONSTITUTED SOLID FROM IN A FLUIDIZED BED OF SOLID PARTICLES OF ALUMINUM CHLORIDE AT CONTROLLED TEMPERATURES.

公开(公告)号：US3773643A

公开(公告)日：1973-11-20

申请号：US3773643D

申请日：1971-09-16

Applicant: ALUMINUM CO OF AMERICA

Inventor： RUSSELL A ,  KNAPP L

IPC: C25C3/08 ,  C22D3/02 ,  C22D3/12

CPC classification number: C25C3/085

Abstract: Furnace having a chamber for holding molten salt, such as alkali metal chloride and alkaline earth metal chloride, in which contact of the molten salts with a perimetric shell around that chamber is prevented by a glass barrier between that shell and the aforesaid chamber.

公开(公告)号：US3725222A

公开(公告)日：1973-04-03

申请号：US3725222D

申请日：1971-10-26

Applicant: ALUMINUM CO OF AMERICA

Inventor： RUSSELL A ,  KNAPP L ,  HAUPIN W

IPC: C25C3/06 ,  C25C3/18 ,  C22D3/12

CPC classification number: C25C3/18

Abstract: Production of aluminum by continuous electrolysis of aluminum chloride in molten electrolyte of controlled oxide content.

Abstract translation: 通过在受控氧化物含量的熔融电解液中连续电解氯化铝来生产铝。

公开(公告)号：US3779699A

公开(公告)日：1973-12-18

申请号：US3779699D

申请日：1973-03-15

Applicant: ALUMINUM CO OF AMERICA

Inventor： RUSSELL A ,  KNAPP L

IPC: C22B9/10 ,  C22B26/00 ,  C25C3/08 ,  F23M5/00

CPC classification number: C25C3/085 ,  C22B9/10 ,  C22B26/00 ,  Y10S65/04

Abstract: Furnace having a chamber for holding molten salt, such as alkali metal chloride and alkaline earth metal chloride, in which contact of the molten salts with a perimetric shell around that chamber is prevented by a glass barrier between that shell and the aforesaid chamber.

Abstract translation: 具有用于保持熔融盐的室的炉，例如碱金属氯化物和碱土金属氯化物，其中熔融盐与围绕该室的周边壳体的接触通过该壳体与上述室之间的玻璃阻挡层来防止。