Europaisches Patentamt
19
European Patent Office
Office europeen
brevets
ien des brevets
EUROPEAN
(fi) Publication number : 0 561
746
A3
PATENT A P P L I C A T I O N
@ Application number: 93830074.6
(§) Date of filing : 24.02.93
(30) Priority : 26.02.92 IT RM920127
(43) Date of publication of application :
22.09.93 Bulletin 93/38
@ Int. CI.5: C04B 18/04, C04B 2 8 / 2 2 ,
B09B 3 / 0 0
@ Representative : Banchetti, Marina et al
c/o Ing. Barzano & Zanardo Roma S.p.A.
Via Piemonte, 26
1-00187 Roma (IT)
@ Designated Contracting States :
DE FR GB
(88) Date of deferred publication of search report :
25.05.94 Bulletin 94/21
© Applicant : ENEA ENTE PER LE NUOVE
TECNOLOGIE, L'ENERGIA E L'AMBIENTE
Viale Regina Margherita, 125
1-00198 Roma (IT)
© Applicant : ECOSERDIANA S.p.A.
Via Saverio Mattei, 22
1-09121 Cagliari (IT)
(72) Inventor : Balzamo, Stefania, c/o Enea - C.R.E.
Casaccia
Divisione AMB-ING-REF,
Via Anguillarese 301
I-00060 Rome (IT)
Inventor : de Angelis, Giorgio, c/o Enea - C.R.E.
Casaccia
Divisione AMB-ING-REF,
Via Anguillarese 301
I-00060 Rome (IT)
Inventor : De Poli,Fabrizio, c/o ENEA-C.R.E.
Casaccia
Divisione AMB-ING-REF,
Via Anguillarese 301
I-00060 Rome (IT)
Inventor : Marchetti, Antonia, c/o Enea - C.R.E.
Casaccia
Divisione AMB-ING-REF,
Via Anguillarese 301
I-00060 Rome (IT)
Inventor : Vargiu, Luciano
c/o Ecoserdiana S.p.A.,
V. Saverio Mattei 22
1-09121 Cagliari (IT)
CO
< (54) Process for stabilizing and solidifying wastes from aluminum processing by means of an inorganic
matrix.
CO
in well-defined proportions by weigth, said pro(57) A process for stabilizing and solidifying wastes from aluminum processing by means of an
cess further comprising treating the gas that
S
inorganic matrix, comprising mixing said wasgradually evolves during the mixing step by
tes with water, lime, cement and one or more
means of a gas scrubbing or purifying system.
If)
natural pozzolan materials, such as real pozzolans, pozzolanic tufa and diatomaceous earth,
or artificial pozzolan materials, such as fly ash,
LU
Jouve, 18, rue Saint-Denis, 75001 PARIS
EP 0 561 746 A3
J
European Patent
Office
Application Number
EP 93 83 0074
EUROPEAN SEARCH REPORT
DOCUMENTS CONSIDERED TO BE RELEVANT
Citation of document with indication, where appropriate,
Relevant
Category
of relevant passages
to claim
EP-A-0 408 545 (TECHFORM ENGINEERING A.
G.)
* claims 1-3 *
* page 3, line 14 - line 25 *
* page 3, line 55 - page 4, line 12 *
1,6,7
DE-A-36 33 413 (KLEIN)
* the whole document *
1.6
US-A-4 762 623 (KAPLAND)
* claims 1 - 3 , 6 , 7 , 9 - 1 1 , 1 3 , 1 4
C04B18/04
C04B28/22
B09B3/00
1
*
1
EP-A-0 038 235 (PICHAT P . )
* claims 1-9 *
US-A-4 028
* column 1,
* column 4,
* column 5,
CLASSIFICATION OF THE
APPLICATION (IntCl. 5)
130 (WEBSTER & AL.)
line 52 - column 2, line 66 *
line 15 - column 5, line 10 *
line 31 - column 6, line 46 *
PATENT ABSTRACTS OF JAPAN
vol. 011, no. 069 (C-407)3 March 1987
& JP-A-61 227 899 (T0SHIHIR0 IJICHI) 9
October 1986
* abstract *
The present search report has been drawn up for all claims
Placeoftearch
DateofnaateUH ofIke nana
THE HAGUE
28 March 1994
CATEGORY OF CITED DOCUMENTS
X: particularly relevant if taken alone
Y: particularly relevant if combined with another
document of the same category
A: technological background
O : non-written disclosure
P : intermediate document
TECHNICAL FIELDS
SEARCHED (IntCLS)
C04B
Rigondaud,
B
T : theory or principle underlying the Invention
E : earlier patent document, but published on, or
after the filing date
D : document dted in the application
L: document dted for other reasons
A: member of the same patent family, corresponding
document
2