et

kasutatud aktiivmuld

1

Terminological databases

EKI terminibaas Esterm

ID 699222 Last modified 30.12.2004
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Domain Chemistry
  • aktiivmullad - põhil. montmorilloniitsavidest koosnevad mineraalained, millega puhastatakse mitmesug. (põhil. vedelaid) sadusi värvivatest jt. kahjulikest ning reostavatest lisanditest. A-de kasutamine põhineb nii looduslike (floridiinsavide) kui ka töödeldud muldade (bentoniitsavide) võimel adsorbeerida pigmente, lima, hägustavaid lisandeid, tõrva jms. A-i kasut. peam. nafta-, tekstiili ja paberitööstuses.
used bleaching earth
Usage examples
  • The montmorillonite minerals are composed of hydrous aluminum silicates in the form of extremely small particles. They take up water between their layers, causing swelling, and change the interlayer spacing according to the mineral variety. In addition to being involved in inorganic exchange reactions, they react with and absorb some organic liquids, such as amines, glycols, glycerols, and other polyhydric alcohols. For detailed physical properties, see clay mineral (table). These minerals are used as bleaching earths for clarifying water, juices, and liquors and for removing colour from mineral and vegetable oils; they are also used as catalyst supports and absorbents in petroleum refining.

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