Patent · US Expired

Method for manufacture of sintered alumina from ammonium aluminum carbonate hydroxide

US4053579A · kind A · utility

9Cited by

6References

2Claims

0Family size

Assignee

The Agency of Industrial Science and Technology · JP

Inventors

Shuzo Kato · Hiratsuka, JP
Takeo Iga
Shogo HATANO
Yuichi Isawa

Key dates

Filing date	Oct 17, 1975
Grant date	Oct 11, 1977
Priority date	—
Expiry date	Oct 17, 1995

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC01P2006/80
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Aluminum carbonate hydroxide ammonium, a new compound, is produced by causing a solution of ammonium hydrogencarbonate to be reacted upon by a soluble aluminum salt. .alpha.-Alumina is obtained by thermal decomposition of this ammonium aluminum carbonate hydroxide. By sintering said .alpha.-alumina, there is obtained sintered .alpha.-alumina.

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