CA3172845C - Granules de silice pour traitement thermique - Google Patents

Granules de silice pour traitement thermique

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Publication number
CA3172845C
CA3172845C CA3172845A CA3172845A CA3172845C CA 3172845 C CA3172845 C CA 3172845C CA 3172845 A CA3172845 A CA 3172845A CA 3172845 A CA3172845 A CA 3172845A CA 3172845 C CA3172845 C CA 3172845C
Authority
CA
Canada
Prior art keywords
granules
silica
particle size
determined
fragments
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CA3172845A
Other languages
English (en)
Other versions
CA3172845A1 (fr
Inventor
Mareike Giesseler
Rainer Golchert
Nina Muhlig
Alexander LYGIN
Wolfgang AUL
Tobias Renger
Christoph Tontrup
Original Assignee
Evonik Operations GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Evonik Operations GmbH filed Critical Evonik Operations GmbH
Priority claimed from PCT/EP2021/062797 external-priority patent/WO2021239475A1/fr
Publication of CA3172845A1 publication Critical patent/CA3172845A1/fr
Application granted granted Critical
Publication of CA3172845C publication Critical patent/CA3172845C/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

L'invention concerne des granules de silice sublimée dont la surface BET est comprise entre 20 m2/g et 500 m2/g ; la taille moyenne en nombre des particules d50 est comprise entre 350 µm et 2000 µm ; l'étendue (d90-d10)/d50 de la granulométrie est comprise entre 0,8 et 3,0 ; la densité apparente est supérieure à 0,35 g/ml ; le volume des pores pour les pores > 4 nm n'est pas supérieur à 1,5 cm3/g, et son procédé de préparation et son utilisation comme support de catalyseur, support de substances liquides, dans des applications cosmétiques, d'isolation thermique, comme excipient pharmaceutique, dans la production de granulés de silice traités thermiquement, comme abrasif, comme composant d'un caoutchouc de silicone.
CA3172845A 2020-05-25 2021-05-14 Granules de silice pour traitement thermique Active CA3172845C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP20176242.4 2020-05-25
EP20176242 2020-05-25
PCT/EP2021/062797 WO2021239475A1 (fr) 2020-05-25 2021-05-14 Granules de silice pour traitement thermique

Publications (2)

Publication Number Publication Date
CA3172845A1 CA3172845A1 (fr) 2021-12-02
CA3172845C true CA3172845C (fr) 2026-03-17

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