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1. (WO1992009541) METHOD OF PRODUCING MULLITE MATERIALS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1992/009541 International Application No.: PCT/US1991/008975
Publication Date: 11.06.1992 International Filing Date: 02.12.1991
IPC:
C04B 35/185 (2006.01) ,C04B 35/622 (2006.01) ,C04B 35/624 (2006.01)
C CHEMISTRY; METALLURGY
04
CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
B
LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
35
Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
01
based on oxides
16
based on silicates other than clay
18
rich in aluminium oxide
185
Mullite
C CHEMISTRY; METALLURGY
04
CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
B
LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
35
Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
622
Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
C CHEMISTRY; METALLURGY
04
CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
B
LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
35
Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
622
Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
624
Sol-gel processing
Applicants:
MANVILLE CORPORATION [US/US]; Patent and Licensing Department P.O. Box 5108 Denver, CO 80217-5108, US
Inventors:
JADA, Sivananda, S.; US
Agent:
QUINN, Cornelius, P.; Patent and Licensing Department Manville Corporation P.O. Box 5108 Denver, CO 80217-5108, US
Priority Data:
621,62403.12.1990US
Title (EN) METHOD OF PRODUCING MULLITE MATERIALS
(FR) PROCEDE DE PRODUCTION DE MATIERES A BASE DE MULLITE
Abstract:
(EN) Described is a method of preparing a mullite composition comprising the steps of forming an aqueous silica containing composition having an acidic pH, forming an aqueous aluminum oxide precursor solution, forming a homogeneous mixture of the silica composition and the aluminum oxide composition, solidifying a mullite precursor composition from the homogeneous solution, sintering the solidified mullite precursor, and recovering the formed mullite composition.
(FR) Procédé de préparation d'une composition à base de mullite comprenant les étapes consistant à former une composition aqueuse contenant de la silice ayant un pH acide, à former une solution précurseur aqueuse d'oxyde d'aluminium, à former un mélange homogène de la composition de silice et de la composition d'oxyde d'aluminium, à solidifier la composition précurseur de mullite à partir de la solution homogène, à fritter le précurseur de mullite solidifié, et à récupérer la composition de mullite formée.
Designated States: JP
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, MC, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)