Current Industrial Applications of Clays(Clays in Industry,Proceedings of the 13^<th> International Clay Conference)
スポンサーリンク
概要
- 論文の詳細を見る
In the last decade, many new industrial applications of clays have been developed. The main reasons for these new and modified applications are because clay suppliers have a better understanding of the physical and chemical properties of the clay minerals. The clay industries have instituted better mining practices and improved processing. The clay deposits and products covered in this paper are common clays that consist of shales, underclays, glacial lacustrine clays and clay rich soils; bentonites, kaolins including ball clays, and palygorskites-sepiolites. The applications of these clays are largely dependent on their structure, physical and chemical properties, including color and brightness, particle shape, size, and distribution, surface charge and area, viscosity, and other properties that are specific for certain applications. The differences in the clay minerals are discussed which demonstrates why kaolins are a good paper coating mineral, ball clays are excellent ceramic raw materials, sodium bentonites are superior drilling muds, calcium bentonites are good absorbents and bleaching earths, and palygorskite and sepiolite are very useful as suspending agents in certain liquids with a high salt content.