Method for producing granular multi-cellular glass and the glass

Details Method for producing granular multi-cellular glass and the glass Method for producing granular multi-cellular glass and the glass

1991-01-25

1991-08-13

Lindsay, Robert L.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

65 22, 65 31, 21050026, C03C 1500, C03B 1900

Patent

active

050396307

ABSTRACT:
Disclosed is a granular multi-cellular glass and a method for producing the same. An ordinary multi-cellular glass grain having relatively low moisture content ratio was prepared as starting material. The glass grain is then dipped in water or alkali solution for eluting or dealkali treatment. By the dipping, soluble alkali components are mainly eluted from a surface layer and cell walls of the glass grain. Thus produced multi-cellular glass grain provides increased moisture content ratio because of the formation of micropores at the layer and cell wall portions. Disclosed also are controls of physical properties of the multi-cellular glass grain for controlling specific gravity, pore volume and pore diameter thereof. By these controls, resultant glass grain is provided with desirable physical properties available for a microcarrier for immobilizing microbe therein.

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