Ivestigation of conditions оf formation calcium hydrosulfasaluminates in the NA2O – AL2O3 – CAO – SO3 – H2O system
About authors
- 1 — Ph.D., Dr.Sci. professor Saint Petersburg State Mining University
- 2 — Ph.D. assistant Saint Petersburg State Mining University
- 3 — post-graduate student Saint Petersburg State Mining University
Abstract
Calcium hydrosulfasaluminates (GSAK) is a component of cement. They are slowly formed together with the forming of the structure of cement in water solution at measurable temperatures (0-25 °C) during about 4-6 months. Slow rate of crystallization of GSAK wasn`t allowed to treat them as self-autonomy objects for use in various technological applications. The possibility of formation of GSAK (4CaO×Al2O3×mSO3×nH2O) is proved in an environment of saturated electrolytes – aluminates solutions of alumina production. They crystallize in a short time about 1-2 hours and retain their stability in long time about 24-36 hours. This allowed for us to identify ways of their industrial use.
Область исследования:
(Archived) Innovation technology in the field of metallurgy and enrichment
References
- Berman H.A., Newman Е.С. The conditions of sta-bility of ettringit connections // The fourth International con-gress in cement chemistry. Мoscow: Stroyizdat. 1964. P.201-212.
- Budnikov P.P., Azelitskay R.D. The special Cements // JPH. 1959. N32. P.1181-1185.
- Dosh В., Keller Х. Composition and technology of sulphoaluminatun components of cement // The sixth Inter-national congress in cement chemistry. Мoscow: Stroyizdat, 1976. N3. P.141-146.
- Zeligman P., Grining N. Crystallization processes in cement production // The fifth International congress in ce-ment chemistry. Мoscow: Stroyizdat, 1973. P.168-185.
- Kantro D.L., Kouplend L.Е. The technology of pro-duction of sulphoaluminatum cements // The Fourth Interna-tional congress in cement chemistry. Мoscow: Stroyizdat, 1964. P.306-334.
- Meta P.К., Polivka M. On the role of sulfate ions in the process of crystallization of calcium aluminate // The Sixth International congress in cement chemistry. Мoscow: Stroyizdat, 1976. N3. P.158-172.
- Mileni R. Crystallization of major hydrates in the system CaO–Al2O3–SO3–H2O //The Fifth International congress in cement chemistry. Мoscow: Stroyizdat, 1973. P.388-402.
- Siziakov V.M. The modernization of technology of the Kola nepheline concentrates complex processing at Pikalevsky aluminous plant // II International congress «Nonferrous metals– 2010». Krasnoyarsk, 2-4 september 2010. P.367-378.
- Siziakov V.M., Siziakova E.V., Fokina S.B. About the mechanism of secondary losses at nepheline cakes leach-ing // I International congress «Nonferrous metals of Siberia». Krasnoyarsk, 8-10th September, 2009. P.145-151.
- Siziakov V.M., Siziakova E.V., Modestova S.A. The technology low-temperature leaching of nepheline cakes // I International congress «Nonferrous metals of Siberia». Krasnoyarsk, 2009. P.142-144.
- Soloveva E.S., Segalova E.E. Conditions of forma-tion of calciumaluminate // The colloid magazine. 1961. N23. P.306-314.
- Dosch W., Zur Strassen H. // Improvement of the technology of cement production. Zem. Kalk-Gips, 1967. V.20. Р.392-401.
- Lerch W., Ashton F.W., Boque Rl.H. The Sulfoalu-minates on Calcium // Jour. of Res., Nat. Bur. of Stand., 1929. V.2. Р.715-731.
- Mehta P.K. Mechanism of Expansion Associated witch Ettringite Formation // Ibid. V.1,3. Р.1-6.
- Mehta P.K., Klein A. About Structure of fast hard Portland Cement. Symposium on Structure of Portland Ce-ment Paste and Concrete // Highway Research Board, Special Report, 1966. N90. Р.328-352.
- Steinour H.H. Kinetics of interaction of alkali with sulphoaluminatum of calcium // Portl. Cem. Ass. Res. Dev. Bull. 1951. V.43. Р.68-70.
Similar articles
Computer training simulator for instruction of oil and gas technological processes operators: the analysis of existing decisions and the way of their improvement
2011 N. I. Koteleva, I. E. Shablovsky, A. V. Koshkin
Developing an effective technology for processing of industrial raw materials containing noble metals
2011 A. N. Teliakov, S. A. Rubis, D. V. Gorlenkov
Substantiation study about the rational circuit of power supplyof machines and complexes of the oil and gas producing enterprises
2011 D. A. Ustinov, A. V. Turysheva