| Article |
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| Article name |
The Influence of Mechanical Activation on the Acid-base Properties of Zeolite-containing Rocks in the Trans-Baikal Region |
| Authors |
Dabizha O. . Candidate of Chemistry, associate professor, dabiga75@mail.ruKhatkova A.N. Doctor of Technical Sciences, professor, alisa1965.65@mail.ruDerbeneva T.V. graduate student, derbeneva23@mail.ru |
| Bibliographic description |
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| Section |
Chemistry |
| UDK |
549.67:54-145.1 (571.54/55) |
| DOI |
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| Article type |
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| Annotation |
The study focuses on the acid-base properties of zeolite-containing rocks of Kholinsk
and Shivyrtuy deposits. The effect of mechanical activation on the number of active
centers of mineral surfaces is studied with the help of the methods of conductometric and
potentiometric titration of their aqueous suspensions. The optimal time and environment
for the mechanochemical treatment have been established earlier by means of infrared
spectroscopy. The study shows the dependence of the nature of conductivity curves on the
mass content of oxides of aluminum, magnesium and calcium in the rocks. It determines
the relevance and potential acidity of the initial and mechanically activated samples and
reveals that the mechanical activation in the air for thirty minutes increases the basicity and
the actual acidity of the studied materials. The use of the mechanochemical method allows
modifying the physicochemical properties of zeolites. The study establishes a possibility
to use mechanical activation in order to increase the absorption capacity of natural zeolites
and their operational characteristics.
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| Key words |
mechanical activation, defects, zeolites, acidity, acid-base centers,
conductometry, potentiometry. |
| Article information |
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| References |
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| Full article | The Influence of Mechanical Activation on the Acid-base Properties of Zeolite-containing Rocks in the Trans-Baikal Region |
