Apparatus for the vaporization of aluminum trichloride

US4371503A · kind A · utility

Inventors

• Dietmar Aichelmann · Rheinfelden (Baden), DE
• Karl Kannenberg · Rheinfelden (Baden), DE
• Dieter Schutte · Rheinfelden (Baden), DE
• Axel Volling · Münstermaifeld, DE

Key dates

• Filing date: Oct 9, 1981
• Grant date: Feb 1, 1983
• Expiry date: Oct 9, 2001

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01F7/56
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

There is provided an apparatus for the vaporization of aluminum trichloride which consists of a U-shaped trough having flat front surfaces in which PA1 (a) there is rotatably disposed at the midpoint of the curve of the front surfaces a shaft aligned parallel to the horizontal longitudinal axis of the trough on which shaft there is disposed a helical stirrer having equal but oppositely directed pitches, in which PA1 (b) there are disposed on the curve parallel to the horizontal longitudinal axis of the trough outside or in the wall at least two heating rods along the entire length of the trough and in which PA1 (c) there is disposed at one end at the lowest point of the curve a device for the discharge of the melted material. The aluminum trichloride vaporized by means of the apparatus of the invention can be used for the pyrogenic production of aluminum oxide.