Method for preventing the undesirable condensation of aluminum c

Details Method for preventing the undesirable condensation of aluminum c Method for preventing the undesirable condensation of aluminum c

1982-05-26

1983-05-31

Sever, Frank

Distillation: processes, separatory

Adding material to distilland except water or steam per se

55 71, 55 72, 75 68B, 203 75, 203 77, 203 78, 203 82, 203 84, 423135, 423463, 423495, B01D 314

Patent

active

043859640

ABSTRACT:
A method is disclosed for preventing the condensation of aluminum chloride (AlCl.sub.3) in a fractional distillation column which is operated to separate a fraction which does not include AlCl.sub.3 from a mixture containing AlCl.sub.3 and other metal chlorides and which is operated at temperatures which include the sublimation or melting points of AlCl.sub.3 at the operating pressure of the column. According to this method, titanium tetrachloride (TiCl.sub.4) is maintained in the column in an amount at least as great, by weight, as the amount of AlCl.sub.3 contained in the mixture.

REFERENCES:
patent: 2387228 (1945-10-01), Arnold
patent: 4035169 (1977-07-01), Sebenik et al.

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