54 |
Title |
TI |
[DE] Staubverwertung [EN] Dust utilisation |
71/73 |
Applicant/owner |
PA |
Kraeft, Uwe, Dipl.-Min., 6908 Wiesloch, DE
|
72 |
Inventor |
IN |
Kraeft, Uwe, Dipl.-Min., 6908 Wiesloch, DE
|
22/96 |
Application date |
AD |
Dec 1, 1981 |
21 |
Application number |
AN |
3147479 |
|
Country of application |
AC |
DE |
|
Publication date |
PUB |
Jul 14, 1983 |
33 31 32 |
Priority data |
PRC PRN PRD |
|
51 |
IPC main class |
ICM |
C04B 31/40
|
51 |
IPC secondary class |
ICS |
B01D 46/00
C04B 23/04
C04B 29/00
C04B 31/10
|
|
IPC additional class |
ICA |
|
|
IPC index class |
ICI |
|
|
Cooperative patent classification |
CPC |
C04B 20/02
Y02W 30/91
|
|
MCD main class |
MCM |
|
|
MCD secondary class |
MCS |
C04B 20/02
(2006.01)
|
|
MCD additional class |
MCA |
|
57 |
Abstract |
AB |
[EN] Industrially arising dust precipitates of heterogeneous and changing composition are upgraded for use in cement, mortar, concrete or other building materials. By heating together with suitable additives, special cooling of the dusts, specific control of the carrier gas and granulometric classification, a product improved for the use is obtained. A noteworthy success is achieved, for example, with fly ashes from coal-fired power stations by using the fine fraction having grain diameters of less than about 30 mu m. |
56 |
Cited documents identified in the search |
CT |
DE000002018221C
|
56 |
Cited documents indicated by the applicant |
CT |
|
56 |
Cited non-patent literature identified in the search |
CTNP |
Betonwerk + Fertigteil-Technik, 1976, S. 340-44 p 0; Ullmanns Encyklopädie der techn. Chemie, 1969, Bd. 19, S. 20 p 0
|
56 |
Cited non-patent literature indicated by the applicant |
CTNP |
|
|
Citing documents |
|
Determine documents
|
|
Sequence listings |
|
|
|
Search file IPC |
ICP |
B01D 46/00
C04B 18/06
C04B 18/08
|