Hydration resistant fused dolomitic grain and production method therefor
US4006029A · kind A · utility
2Cited by
2References
20Claims
0Family size
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Key dates
| Filing date | Jun 17, 1974 |
| Grant date | Feb 1, 1977 |
| Priority date | — |
| Expiry date | Jun 17, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B35/06
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A basic fused refractory material consisting essentially of, by weight on the oxide basis, 50-67% MgO, 33-50% CaO, and preferably at least 98% MgO + CaO. The method of producing the fused refractory material by melting and solidifying a batch of refractory raw materials, wherein the cooling rate inducing solidification throughout the fused melt is at least 600 Centigrade degrees per hour and sufficient to yield the fused refractory product characterized by a fine microstructure retaining at least 2.0% MgO in solid solution in the lime phase and increased hydration resistance of the fused refractory material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.