Physico-chemical methods for researching natural glauconite
Djalol Kamalovich Adilov, Candidate of Technical Scinces,
Senior Research Fellow, Institute of General and Inorganic Chemistri of Uzbek Academy Scince, Uzbekistan, Tashkent;
Askar Juraevich Mirzaev, Candidate of Technical Scinces, Senior Research Fellow, Institute of General and Inorganic Chemistri of Uzbek Academy Scince, Uzbekistan, Tashkent;
Natalya Ivanovna Chernichenko, junior Research Fellow, Institute of General and Inorganic Chemistri of Uzbek Academy Scince, Uzbekistan, Tashkent;
Zarifa Irkinovna Mahsudova, junior Research Fellow, Institute of General and Inorganic Chemistri of Uzbek Academy Scince, Uzbekistan, Tashkent;
Omonulla Ibragimov, Head of the cement department of
the Ministry of Industrial Building Materials of the
Republic of Uzbekistan
Abstract. On the basis of chemical and physicochemical methods of analyzes, it was established that glauconite in the Parkent region of the Changinsky deposit in the Tashkent region belongs to glauconite-bearing sandstones with reserves of the C2 category of 14 million tons.
Searches are being carried out within the Garm – Chashmasai area, where mine workings have uncovered a layer of glauconite-bearing sandstones with a thickness of 2 m with a glauconite content of up to 15%. Resources with an area of 10 million tons. The manifestation of Bolgala is immediately studied, the resources of which are estimated by experts at 0,5 million tons.
In Karakalpakstan, the reserves of the Krantau field are estimated at 10 million tons. The thickness of the reservoir is 1,0 – 2,5 m, the content of glauconite ranges from 8,0% to 19,8%. Searches are underway for glauconite raw materials on the left bank of the Amu Darya, Kyzyljar region. The Kofrunskoye field with reserves of 15 million tons was discovered in the Surkhandarya region. The average content of glauconite in the rock is 6,0 – 12,0%.
In the Yakkabag Mountains on the territory of the Kashkadarya region, the Tagarasai site was identified, within which a sandstone layer with a thickness of 3,15 – 15,8 m contains glauconite in an amount of 8% to 24%. Mobik development resources are estimated today at 1,5 million tons.
In the Namangan region (Hawasai graben, Kucharsai), a new mineral raw material was discovered celadonite, which is an analogue of glauconite.
Physicochemical methods (XRD, IR - spectroscopy) revealed that glauconite contains aluminosilicate Fe2O3, K2O, P2O5.
It was found that the most stable in the structure of glauconite are Al – O bonds, namely, stable Si O bonds, tetrahedron.
Key words:natural glauconite, pigments, paint, rock, heat treatment, raw materials, resources, sedimentary iron, ocher.