Method for preventing the undesirable condensation of aluminum chloride in a fractional distillation column
US4385964A · kind A · utility
8Cited by
2References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 26, 1982 |
| Grant date | May 31, 1983 |
| Priority date | — |
| Expiry date | May 26, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01G49/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.