Investigation of phase transformations in murzynskiy kaolin in the production of metakaolin

Authors

  • Татьяна Владимировна Зеленюк Ukrainian Academy of Engineering pedagogichekaya Str. University, 16, Kharkov, Ukraine, 61003, Ukraine
  • Ольга Борисовна Скородумова Ukrainian Academy of Engineering pedagogichekaya Str. University, 16, Kharkov, Ukraine, 61003, Ukraine
  • Татьяна Борисовна Гонтар Ukrainian Academy of Engineering pedagogichekaya Str. University, 16, Kharkov, Ukraine, 61003, Ukraine
  • Яна Николаевна Гончаренко Ukrainian Academy of Engineering pedagogichekaya Str. University, 16, Kharkov, Ukraine, 61003, Ukraine
  • Наталья Сергеевна Кайда Ukrainian Academy of Engineering pedagogichekaya Str. University, 16, Kharkov, Ukraine, 61003, Ukraine

DOI:

https://doi.org/10.15587/1729-4061.2013.14806

Keywords:

Murzinskiy kaolin, phase transformations, metakaolin, adsorption activity, the degree of ordering of kaolinite, mullitization

Abstract

The metakaolin is low-fired kaolin chamotte. Due to its high activity to free lime, the metakaolin is of interest to producers of dry building concrete mixtures and refractory ones.

The aim of the work is to research the interconnection of structural order degree and phase composition changing in metakaolin during the firing process.

It has been founded that the degree of structural ordering of Murzinskiy kaolin influences the phase composition of fired metakaolin and crystallization degree of its phases as well as its adsorption activity degree.

The influence of calcination temperature on the adsorption activity value of the murzinskiy metakaolin has been researched.

It is found that the adsorption activity of methakaolin increases with decreasing the degree of ordering of kaolinite in the initial kaolin. Using the kaolin based on imperfect structure of kaolinite leads to partial destruction of  layers of kaolinite during the calcination process, its transition into a amorphous aluminosilicate phase and the formation of amorphous oxides of aluminum and silicon, which when mixed with water form mainly Brensted basic centers of adsorption and, in small quantities, Ljuis positive centers.

 It is established that increasing the firing temperature of the above 700oC decreases the adsorption activity of metakaolin. It is connected with passivation of the surface of the metakaolin particles due to the activation of the process of crystallization of its main phases, which leads to a decrease in the number of Brensted basic centers. The obtained results are consistent with the results of X-ray phase analysis.

Author Biographies

Татьяна Владимировна Зеленюк, Ukrainian Academy of Engineering pedagogichekaya Str. University, 16, Kharkov, Ukraine, 61003

Post-graduate

Ольга Борисовна Скородумова, Ukrainian Academy of Engineering pedagogichekaya Str. University, 16, Kharkov, Ukraine, 61003

Doctor of Technical Sciences, Professor

Department of Technology of Food Industry

Татьяна Борисовна Гонтар, Ukrainian Academy of Engineering pedagogichekaya Str. University, 16, Kharkov, Ukraine, 61003

Assistant

Department of Food Technology

Яна Николаевна Гончаренко, Ukrainian Academy of Engineering pedagogichekaya Str. University, 16, Kharkov, Ukraine, 61003

Candidate of Technical Sciences

Department of Food Technology

Наталья Сергеевна Кайда, Ukrainian Academy of Engineering pedagogichekaya Str. University, 16, Kharkov, Ukraine, 61003

Engineer

Department of Food Technology

References

  1. Захаров С. А. Высокоактивный метакаолин – современный минеральный модификатор цементных систем [Текст] / С. А. Захаров, Б. С. Калачик // Строительные материалы. - 2007. - №5.- С.2–3.
  2. Xiмiчнi i мінеральні добавки в бетон / За заг. ред. О. Ушерова-
  3. Маршака. — X.: Колорит, 2005. — 280 с
  4. Дворкин Л.И. Свойства цементных паст с композиционной добавкой для производства литых высокопрочных бетонов [Текст] / Л.И.Дворкин, А.В.Безусяк, И.О.Кириченко // Вісник Донбаської державної академії будівництва та архітектури.- Макіївка: ДонДАБА, 2004.- вип.№1 (143).- т.2:Композиційні матеріали для будівництва.- С.45-49.
  5. Al-Akhras N.M. Durability of metakaolin to sulfate attack [Текст] // Chem. Concr. Res.-2006.- v36.- N 9.- P. 1727-1734.
  6. Дворкін І.Й. Метакаолін в будівельних розчинах і бетонах [Текст]
  7. / І.Й Дворкін, Н.В. Лушнікова, Р.Ф.Рунова, Київ: видавництво КНУБіА, 2007.- 216с.
  8. Августинник А.И. Керамика [Текст].- Л:Стройиздат, 1975.-592с.
  9. Шуляк Р.С. Исследование каолина Мурзинского месторождения [Текст] / Шуляк Р.С., Примаченко В.В., Годлевская В.Л., Дышлюк М.М. // Огнеупоры.- 1985.- №11.- С.29 - 34.
  10. Шуляк Р.С. Исследование трудноспекающегося мурзинского каолина [Текст] / Шуляк Р.С. Примаченко В.В., Карякина Э.Л. // Огнеупоры.- 1990.- №3.- С.20 - 25.
  11. Зеленюк Т.В. Исследование фазового состава каолина Мурзинского месторождения [Текст] / Зеленюк Т.В., Юдин А.С., Скородумова О.Б.// Вісник Національного технічного університету "ХПІ", 2011.- №59.- С.81 – 86.
  12. В.М. Гунько. Квантово-химический анализ адсорбции и механизмов химических реакций на поверхности твердых тел [Текст] // Хімія, фізика та технологія поверхні. -2010.- Т.1.- № 1. -С.5–18.
  13. Zakharov S. A., Kalachik B. S. (2007). High-active methakaolin is a modern mineral modifier of concrete systems. Building materials, 5, 2-3.
  14. The chemical and mineral additions to cement. Ed by A.V. Usherov-Marshak (2005). Kharkov, Ukraine: Kolorit, 280.
  15. Dvorkin L.I. (2004). The properties of cement masses containing the compositional addition for high-strength concrete production. Bulletin of the Donbass State Academy of the building and Architecture, 2(143), P.45-49.
  16. Al-Akhras N.M. (2006). Durability of metakaolin to sulfate attack Chem Concr Res, 36(9), 1727-1734.
  17. Dvorkin I.Y. , Lushnikova N.V., Runova R.F. (2007). The methakaolin in building solutions and concretes. Kuiv, Ukraine: KhNUBA, 216.
  18. Avgustinnik A.I. (1975). Ceramics. Leningrad, USSR: Stroyizdat, 592.
  19. Shulyak R.C., Primachenko V.V., Godlevskaya V.L. (1985). The investigation of Murzinskiy kaolin. Refractories, 11, 29-34.
  20. Shulyak R.C., Primachenko V.V., Karyakina E.L. (1990). The investigation of hard-sintering murzinskiy kaolin. Refractories, 3, 20-25.
  21. Zelenyuk T.V., Yudin A.C., Skorodumova O.B. (2011). The research of phase composition of Murzinskiy kaolin. Bulletin of the National Technical University “KPI”, 59, 81-86.
  22. Gunkoo V.M. (2010). Quantum-cnemical analysis of adsorption process and mechanisms of chemical reactions on solid surfaces Chemistry, Physics and Surface technology, 1(1), 5-18.

Published

2013-07-19

How to Cite

Зеленюк, Т. В., Скородумова, О. Б., Гонтар, Т. Б., Гончаренко, Я. Н., & Кайда, Н. С. (2013). Investigation of phase transformations in murzynskiy kaolin in the production of metakaolin. Eastern-European Journal of Enterprise Technologies, 3(6(63), 41–44. https://doi.org/10.15587/1729-4061.2013.14806

Issue

Section

Technology organic and inorganic substances