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Production of Alumina Monohydrate from Aluminum Nitrate Solutions.

Authors
Eisele-JA; Eichbaum-BR; Bauer-DJ
Source
U S Pat 4 044 115 1977 Aug; :
Link
NIOSHTIC No.
10012022
Abstract
Alumina monohydrate is produced by treating aluminum nitrate solutions at a temperature of about 250 deg c to 350 deg c and a pressure of about 500 to 2,500 psig. For example, a charge of 150 g of al(no3)3.9H2o and 300 g h2o was put in an autoclave. The temperature was raised to 275 deg c and held at that value for 4h, an autogenous pressure of 950 psig being generated. After cooling, 16.9 G of precipitate was recovered and identified by x-ray diffraction as primarily y-alooh, representing 70 pct al recovery.
Publication Date
19770801
Document Type
PA;
Fiscal Year
1977
NTIS Accession No.
NTIS Price
Identifying No.
PAT 4,044,115
NIOSH Division
RERC;
Source Name
U.S. Pat. 4,044,115, Aug. 23, 1977, Chem. Abstr. Not Found
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