Patent · US Expired

Preparation of anhydrous aluminum chloride

US4769227A · kind A · utility

0Cited by

5References

4Claims

0Family size

Assignee

BASF SE

Inventors

Gerhard Pforr · Ludwigshafen, DE
Hermann Meyer · Schneizlreuth, DE
Wilhelm Goesele · Monsheim, DE
Hans Stark · Lennep, DE

Key dates

Filing date	May 28, 1987
Grant date	Sep 6, 1988
Priority date	—
Expiry date	May 28, 2007

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC01P2002/72
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Anhydrous aluminum chloride is prepared by reacting .gamma.-alumina with carbon monoxide and chlorine and/or phosgene in a fluidized bed at from 400.degree. to 700.degree. C. The .gamma.-alumina used gives, with CuK.sub..alpha. radiation, an X-ray diffraction pattern whose intensity at the diffraction angle 2.sup..crclbar. =42.8.degree..+-.0.4.degree. divided by the intensity at the diffraction angle 2.sup..crclbar. =45.7.degree..+-.0.2.degree. is .ltoreq.0.38.

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