| Citation: |
LI Chen, GUAN Junfang, FANG Ji, LÜ Hao. Study on the Characteristics of Kaolin from Some Area in Guangdong Province[J]. Northwestern Geology, 2017, 50(3): 140-145.
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Study on the Characteristics of Kaolin from Some Area in Guangdong Province
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Abstract
This paper made systematic studies on kaolin by means of optical microscope, X-ray diffraction (XRD), X-ray fluorescence spectrum(XRF), electron probe and scanning electron microscope (SEM). Results show that the elutriation rate of kaolin is 71%.Quartz and potash feldspar were enriched as -0.045mm size; Muscovite and kaolinite (halloysite) were enriched as +0.030 mm and -0.045mm size, respectively.After calcinations, the whiteness of each particle size is high, especially in -0.010+0.005mm, with the whiteness reached to 85.69%. Kaolinite, the objective mineral, shows patchy and overlapping shape. Halloysiteshows tubular form. The titanium content of kaolin is 0.051%. However, itsiron content is higher,which reaches 1.009% and mainly exists as the forms of surface iron and lattice iron.-
Keywords:
- kaolin /
- process mineralogy /
- whiteness
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References
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LI Chen, GUAN Junfang, FANG Ji, LÜ Hao. Study on the Characteristics of Kaolin from Some Area in Guangdong Province[J]. Northwestern Geology, 2017, 50(3): 140-145.
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