Process for producing low density gel compositions

Details Process for producing low density gel compositions Process for producing low density gel compositions

B - Operations, Transporting

01

J

B01J 13/00 (2006.01) C01B 33/148 (2006.01)

Patent

CA 2286148

Disclosed are processes for producing gel composition which may be utilized to produce low density gel compositions without the need for supercritical drying, thermal treatment or surface treatment. The processes comprise drying a wet gel comprising gel solids and a drying agent to remove the drying agent while minimizing shrinkage of the gel during drying.

L'invention concerne des procédés de production de compositions en gel pouvant être utilisées pour la production de compositions en gel sans séchage, traitement thermique ou traitement de surface supercritiques. Lesdits procédés consistent à sécher un gel humide comprenant des solides en gel et un agent dessicatif, de sorte que ce dernier soit enlevé et que le retrait du gel soit minimisé pendant le séchage.

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