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Résultats pour
 brevets
1.
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METHOD FOR PREPARING LIGHTWEIGHT AGGREGATES
| Numéro de document |
03238724 |
| Statut |
En instance |
| Date de dépôt |
2022-11-21 |
| Date de disponibilité au public |
2023-05-25 |
| Propriétaire |
SEEGEX (France)
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| Inventeur(s) |
Gambier, David Claude
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Abrégé
The present invention relates to a method for preparing lightweight clay-based aggregates, said aggregates being suitable for use notably in civil engineering works, in particular road uses, and construction. The invention thus firstly relates to a method for preparing lightweight aggregates comprising at least the following steps: a) a step of granulating a clay-based mixture, so as to obtain aggregates, b) a step of drying the aggregates obtained, so as to obtain dried aggregates, c) a step of heat treatment of the dried aggregates, said step comprising two successive substeps: i) a first substep of heat treatment carried out under a reducing atmosphere at a temperature T1 of between 900°C and 1200°C approximately, ii) a second substep of heat treatment carried out under an oxidizing atmosphere at a temperature T2 of between 1050°C and 1300°C approximately, and d) a step of cooling the aggregates.
Classes IPC ?
- B09B 3/25 - Agglomération, liaison ou encapsulation de déchets solides à l'aide de liants ou de matrices minéraux
- B09B 3/40 - Destruction de déchets solides ou transformation de déchets solides en quelque chose d'utile ou d'inoffensif impliquant un traitement thermique, p. ex. évaporation
- C04B 18/02 - Matières agglomérées
- C04B 20/06 - Argile expansée, perlite, vermiculite ou matières granuleuses analogues
- C04B 33/04 - ArgileKaolin
- C04B 33/132 - DéchetsRésidus
- C04B 33/30 - Séchage
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2.
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METHOD FOR PREPARING LIGHTWEIGHT AGGREGATES
| Numéro d'application |
EP2022082630 |
| Numéro de publication |
2023/089176 |
| Statut |
Délivré - en vigueur |
| Date de dépôt |
2022-11-21 |
| Date de publication |
2023-05-25 |
| Propriétaire |
SEEGEX (France)
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| Inventeur(s) |
Gambier, David, Claude
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Abrégé
The present invention relates to a method for preparing lightweight clay-based aggregates, said aggregates being suitable for use notably in civil engineering works, in particular road uses, and construction. The invention thus firstly relates to a method for preparing lightweight aggregates comprising at least the following steps: a) a step of granulating a clay-based mixture, so as to obtain aggregates, b) a step of drying the aggregates obtained, so as to obtain dried aggregates, c) a step of heat treatment of the dried aggregates, said step comprising two successive substeps: i) a first substep of heat treatment carried out under a reducing atmosphere at a temperature T1 of between 900°C and 1200°C approximately, ii) a second substep of heat treatment carried out under an oxidizing atmosphere at a temperature T2 of between 1050°C and 1300°C approximately, and d) a step of cooling the aggregates.
Classes IPC ?
- C04B 33/132 - DéchetsRésidus
- C04B 33/04 - ArgileKaolin
- C04B 33/30 - Séchage
- C04B 33/32 - Procédés de cuisson
- C04B 35/626 - Préparation ou traitement des poudres individuellement ou par fournées
- B09B 3/25 - Agglomération, liaison ou encapsulation de déchets solides à l'aide de liants ou de matrices minéraux
- B09B 3/40 - Destruction de déchets solides ou transformation de déchets solides en quelque chose d'utile ou d'inoffensif impliquant un traitement thermique, p. ex. évaporation
- C04B 18/02 - Matières agglomérées
- C04B 20/06 - Argile expansée, perlite, vermiculite ou matières granuleuses analogues
- C04B 111/00 - Fonction, propriétés ou utilisation des mortiers, du béton ou de la pierre artificielle
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