Changes in the pore structure of kaolinite clay that result from calcination and hydrochloric acid leaching have been studied by a gas adsorption technique. The results show that the surface area, macropore volume and micropore volume of the leached residue increase with the extent of leaching up to a leach time of 1 h and decrease thereafter. Calcination at 500-750 degree C appears to destroy the structure of the clay, but has no significant effect on its porous nature.
|Original language||English (US)|
|Number of pages||4|
|Journal||Transactions of the Institution of Mining and Metallurgy, Section C: Mineral Processing and Extractive Metallurgy|
|State||Published - Jun 1 1985|
ASJC Scopus subject areas
- Geotechnical Engineering and Engineering Geology
- Geochemistry and Petrology