The article describes a fundamentally new one-step chlorine free mechanochemical method for the direct synthesis of alkoxysilanes. The essence of the developed method consists in the direct interaction of untreated silicon with a dispersion up to 5 mm with an appropriate aliphatic alcohol containing from 1 to 4 carbon atoms in the presence of a copper-containing catalyst at a temperature of 200–300 °C in a vibrating fluidized bed of milling bodies in a wide vibration acceleration range. The experiments proved the principal possibility of its realization in a developed vibratory reactor, whose design solutions are adaptable to industrial application. It is shown that mechanoactivation plays a major role in the developed method of direct synthesis and is in fact the basis of a fundamentally new technological process.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Pat. RF 2332256, B01J8/10, Reactor for the Direct Synthesis of Alkoxysilanes [in Russian], A. S. Gorshkov, A. S. Dmitriev, G. A. Dubrovskaya, et al., Bull. No. 24, August 27 (2008).
Pat. US 6.090.965, Removal of Dissolvent Silicates from Alcohol-Silicon Direct Synthesis Solvents, K. M. Lewis and Hua Yu (2000).
M. Okamoto, Res. Chem. Intermed., 32, 317–330 (2006).
G. J. Wang, F. X. Zhang, G. Y. Liu, and X. N. Liu, Adv. Mater. Res., 455, 80–86 (2012).
E. Suzuki, M. Okamoto, and Y. Ono, “Effect of oxide layers on the reaction of silicon with methanol into trimethoxysilane using copper copper (I) chloride,” Solid State Ionics, 47, 97–104 (1991).
Pat. US 5.362.897, Process for Producing Trialkoxysilane, Katsuyoshi Harada and Yashinori Yamada (1994).
F. D. Mendicino, H. E. Burtrug, P. J. Burns, et al., “Development of direct trimethoxysilane synthesis from a laboratory test tube to production,” in: Silicon for the Chemical Industry, IV Geiranger, Norway, June 3–5 (1998), pp. 275–295.
E. G. Avvakumov and L. G. Karakchiev, “Mechanochemical synthesis as a method of obtaining nanosized particles of oxide materials”, Khimiya v Interesakh Ustoichivogo Razvitiya, 12, 287–292 (2004).
V. A. Chlenov and N. V. Mikhailov, Vibrating Fluidized Bed [in Russian], Nauka, Moscow (1972).
Pat. RF 2628299 C1, A Method for Producing Alkoxysilanes [in Russian], D. N. Kholodkov, A. A. Anisimov, A. S. Zhil’tsv, et al., Bull. No. 23 (2017).
S. M. Chistovalov and A. N. Chernov, “Creation of multifunctional vibratory devices for low-tonnage chemical-technological processes”, Khim. Neft. Mashinostr., No. 3, 35–36 (1996).
S. M. Chistovalov and E. Yu. Baranova, “Design solutions of a multifunctional apparatus for low-tonnage chemistry”, Khim. Neftegaz. Mashinostr., No. 4, 7–10 (2014).
Author information
Authors and Affiliations
Corresponding author
Additional information
Translated from Khimicheskoe i Neftegazovoe Mashinostroenie, Vol. 54, No. 10, pp. 3–6, October, 2018.
Rights and permissions
About this article
Cite this article
Chistovalov, S.M., Kotov, V.M., Anisimov, A.A. et al. Mechanochemical Method and Equipment Design for Obtaining Alcoxysilanes. Chem Petrol Eng 54, 703–707 (2019). https://doi.org/10.1007/s10556-019-00536-6
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10556-019-00536-6