Survey of Russian Federation inventions on refractories

Survey of Russian Federation inventions on refractories Refractories and Industrial Ceramics Vol. 49, No. 5, 2008 INVENTIONS Survey prepared by Zh. N. Demidova Translated from Novye Ogneupory, No. 8, pp. 64 – 67, August 2008. MULLITE-CORUNDUM REFRACTORY content of 14 – 16% containing up to 7% of particles with a size of more 63 m it is stabilized for 7 – 20 h in order to ob- V. I. Khabarova, E. M. Grishkun, and A. M. Gorokhovskii tain a highly concentrated ceramic binder suspension Patent RU 2303019 (HCBS), and it is mixed with a suspension of the composi- IPC C04B 35/10 tion, wt. fraction: refractory bentonite clay 1, water 1 with an amount of 0.2 – 0.7% clay of the HCBS weight, i.e. for Mullite-corundum refractory prepared from mixes, in- 50 – 70 min, then it is stirred with trisodium phosphate or cluding corundum, clay, orthophosphoric acid and an addi- tripolyphosphate in an amount of 0.2 – 0.7% of the HCBS tive distinguished by the fact that the addition to the mix con- weight. tains a barium oxide concentrate with a barium sulphate con- tent of not less that 85 wt.% with the following ratio of com- Bulletin, No. 21, 304 (2007). ponents, wt.%: barium oxide Refractories and Industrial Ceramics Springer Journals

Survey of Russian Federation inventions on refractories

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Copyright © 2008 by Springer Science+Business Media, Inc.
Materials Science; Characterization and Evaluation of Materials; Materials Science, general; Ceramics, Glass, Composites, Natural Materials
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