Hormite or Attapulgite
Hormite or attapulgite material possess a natural higher porosity and electric unbalance. The activation process has taken place naturally thanks to the particular conditions of temperature, pressure and chemical environment which the volcanic silicates were in contact with.
For many applications, this natural activity is sufficient and the wanted result is reached without the negative side effects given by acid. However a certain degree of acidity in the process environment is required to treat some compounds, in those cases these are also treated with mineral acids.
Combined Attapulgite and Hormite
These are based on an intergrowth of hormite and smectite minerals, where the characteristics and advantages of the two minerals are combined. The structure is intermediate between that of bentonite and attapulgite, where lamellae and tubules form a three dimensional, highly porous and strong network.http://www.aquatechnologies.com/info_activated_clay.htm
2006-08-31
04:41:54
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tatal_nostru2006
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