Patent · US Expired

Method of thermally splitting hydrate of aluminum chloride

US4226844A · kind A · utility

15Cited by

4References

15Claims

0Family size

Assignee

Aluminum Pechiney · FR

Inventors

Lothar Reh · Zumikon, CH
Ludolf Plass · Kronberg, DE
Philippe Marchessaux · Aix-en-Provence, FR
Raman R. Sood · Kingston, CA

Key dates

Filing date	Feb 5, 1979
Grant date	Oct 7, 1980
Priority date	—
Expiry date	Feb 5, 1999

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S423/16
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Thermally splitting hydrate of aluminum chloride to produce aluminum oxide wherein the hydrate is at least partially split by contact with hot gases and hot calcined product in a turbulent zone, transmitting the material from the turbulent zone into a residence zone, recycling a portion of the solids from the residence zone to the turbulent zone in an amount to maintain a desired suspension density while the remainder is passed to a turbulent cooling zone in heat exchange with the fluidizing gas introduced into the turbulent zone.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.