In:
Advanced Materials Research, Trans Tech Publications, Ltd., Vol. 826 ( 2013-11), p. 175-182
Abstract:
The K-feldspar rocks, mechanically activated by a microcrystalline mill with an organic activator, were used to study their physical properties and kinetics of element release. The results showed that the microcrystalline grinding reduced particle size, significantly increased specific surface area, obviously improved the morphologies, and broke the lattice structure and increased abundance of amorphous and disordered constituents in K-feldspar rocks within 45 minutes of grinding. Further grinding beyond 45 minutes resulted in an undesirable effect. The microcrystalline grinding also improved release amount of K, Na, Si, Al, Fe and P, and increased the value of pH and EC in extracting solution. Among the grinding treatments, the best physicochemical properties were obtained at 45 minutes and the energy consumption was lower. In comparison to the ordinary K-feldspar rocks, the physical characteristics of the activated K-feldspar rocks were changed significantly. These changes enhanced the nutrient release from the K-feldspar rocks. Thus, microcrystalline grinding technology was important to exploit and utilize the K-feldspar rocks.
Type of Medium:
Online Resource
ISSN:
1662-8985
DOI:
10.4028/www.scientific.net/AMR.826
DOI:
10.4028/www.scientific.net/AMR.826.175
Language:
Unknown
Publisher:
Trans Tech Publications, Ltd.
Publication Date:
2013
detail.hit.zdb_id:
2265002-7
Permalink