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Machine translation
1. (WO1990008738) PROCESS FOR PREPARING BASIC ALUMINUM COMPOUNDS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1990/008738    International Application No.:    PCT/EP1990/000050
Publication Date: 09.08.1990 International Filing Date: 10.01.1990
IPC:
C01F 7/00 (2006.01), C01F 7/56 (2006.01), C02F 1/52 (2006.01), D21H 17/66 (2006.01), D21H 21/16 (2006.01)
Applicants: CAFFARO S.P.A. [IT/IT]; Via Privata Vasto, 1, I-20121 Milano (IT) (For All Designated States Except US).
DORÉ, Fausto [IT/IT]; (IT) (For US Only).
DONELLI, Giordano [IT/IT]; (IT) (For US Only)
Inventors: DORÉ, Fausto; (IT).
DONELLI, Giordano; (IT)
Agent: GARRONE, Fernando; Internazionale Brevetti s.r.l., Via Brentano, 2, I-20121 Milan (IT)
Priority Data:
19179 A/89 25.01.1989 IT
Title (EN) PROCESS FOR PREPARING BASIC ALUMINUM COMPOUNDS
(FR) PROCEDE DE PREPARATION DE COMPOSES D'ALUMINIUM DE BASE
Abstract: front page image
(EN)The present invention relates to a process for preparing basic aluminum compounds having the general formula (1): [Al¿2? (OH)¿x? Cl¿y? (SO¿4?)¿z?]¿n? where: n is at least equal to 1, x = 2 $m(X) 4.0, y = 2.0 $m(X) 3.40, z = 0 $m(X) 0.30, and x + y + z = 6, by means of a reaction of alumina with hydrochloric acid, possibly mixed with sulfuric acid. The alumina is caused to react in alumina/acid(s) stoichiometric conditions to obtain the compounds of formula (1). The reaction is carried out by milling alumina in liquid phase under heavy stirring.
(FR)L'invention concerne un procédé de préparation de composés d'aluminium de base ayant la formule générale (1): [A1¿2? (OH)¿x? Cl¿y? (SO¿4?)¿z?]¿n? où: n est au moins égal à 1, x = 2 $m(X) 4.0, y = 2.0 $m(X) 3.40, z = 0 $m(X) 0.30, and x + y + z = 6, à l'aide d'une réaction d'oxyde d'aluminium avec de l'acide chlorhydrique, éventuellement mélangé avec de l'acide sulfurique. On provoque la réaction de l'oxyde d'aluminium dans des conditions stoichiométriques d'oxyde d'aluminium/acide(s) afin d'obtenir les composés de la formule (1). La réaction est menée à bien en broyant de l'oxyde d'aluminium en phase liquide dans des conditions de brassage soutenu.
Designated States: CA, HU, JP, SU, US.
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, IT, LU, NL, SE).
Publication Language: English (EN)
Filing Language: English (EN)