| 54 |
Title |
TI |
[DE] Verfahren zur Herstellung eines Werkstoffs aus Me-ß"-Al¶2¶O¶3¶
[EN] Beta''-alumina for nitrosyl cation ion exchange used in nitrogen oxide sensors and nitrogen oxide removal from engine exhaust gases is produced by gamma-alumina powder addition to reduce the metal aluminate content |
| 71/73 |
Applicant/owner |
PA |
Dornier GmbH, 88039 Friedrichshafen, DE
|
| 72 |
Inventor |
IN |
Hürland, Armin, 88048 Friedrichshafen, DE
;
Kayser, Armin, 88090 Immenstaad, DE
;
Moos, Ralf, Dr., 88048 Friedrichshafen, DE
;
Plog, Carsten, Dr., 88677 Markdorf, DE
|
| 22/96 |
Application date |
AD |
Aug 19, 1998 |
| 21 |
Application number |
AN |
19861087 |
|
Country of application |
AC |
DE |
|
Publication date |
PUB |
Feb 24, 2000 |
33
31
32 |
Priority data |
PRC
PRN
PRD |
DE
19837505
19980819
|
| 51 |
IPC main class |
ICM |
C04B 35/113
|
| 51 |
IPC secondary class |
ICS |
B01D 53/86
C01F 7/02
|
|
IPC additional class |
ICA |
|
|
IPC index class |
ICI |
|
|
Cooperative patent classification |
CPC |
B01D 2257/404
B01D 53/326
C01F 7/028
C01P 2002/72
C04B 35/113
G01N 27/4073
H01M 10/3918
Y02E 60/10
|
|
MCD main class |
MCM |
|
|
MCD secondary class |
MCS |
B01D 53/32
(2006.01)
C01F 7/028
(2022.01)
C04B 35/113
(2006.01)
G01N 27/407
(2006.01)
H01M 10/39
(2006.01)
|
|
MCD additional class |
MCA |
|
| 57 |
Abstract |
AB |
[DE] Die Erfindung betrifft ein Verfahren zur Herstellung eines Werkstoffs aus Me-beta"-Al¶2¶O¶3¶ mit einem Gehalt an MeAlO¶2¶ von unter 2,4 Molprozent, wobei Me mindestens ein einwertiges Metall aus Lithium, Natrium, Kalium, Rubidium, Silber oder Tantal ist, mit folgenden Verfahrensschritten: DOLLAR A È bei einem in Pulverform vorliegenden Me-beta"-Al¶2¶O¶3¶ wird der Gehalt an MeAlO¶2¶ bestimmt und anschließend gamma-Al¶2¶O¶3¶-Pulver zur Kompensation des MeAlO¶2¶ zugegeben, DOLLAR A È Brennen der Pulvermischung.
[EN] Beta-double-prime-alumina production includes gamma-alumina powder addition to reduce the metal aluminate content of an initial powder. Production of Me- beta ''-Al2O3 containing less than 2.4 mol.% MeAlO2, where Me is a monovalent metal selected from Li, Na, K, Rb, Ag or Ta, comprises determining the MeAlO2 content of a given Me- beta ''-Al2O3 powder, adding psi -Al2O3 powder for compensation of the MeAlO2, and then firing the powder mixture. |
| 56 |
Cited documents identified in the search |
CT |
|
| 56 |
Cited documents indicated by the applicant |
CT |
|
| 56 |
Cited non-patent literature identified in the search |
CTNP |
|
| 56 |
Cited non-patent literature indicated by the applicant |
CTNP |
|
|
Citing documents |
|
Determine documents
|
|
Sequence listings |
|
|
|
Search file IPC |
ICP |
B01D 53/86 A1M
C01F 7/02
C04B 35/113
|
