Claims
- 1. A refractory ceramic material, comprising a refractory binder composition, comprising about 70 to about 92% by weight of silica, and about 8 to about 30% by weight of titania, wherein the material has been fired to a temperature in the range of 1400.degree. to 1700.degree. C., the material having a corrosion rate of no greater than 600 mils/yr.
- 2. A refractory ceramic material, comprising a refractory binder composition, comprising about 35 to about 83% by weight of silica, about 4 to about 27% by weight of titania, and about 10 to about 46% by weight of alumina, wherein the material has been fired to a temperature in the range of 1400.degree. to 1700.degree. C., the material having a corrosion rate of no greater than 600 mils/yr.
- 3. A refractory ceramic material, comprising a refractory binder composition, comprising about 35 to about 83% by weight of silica, about 4 to about 27% by weight of titania, about 10 to about 46% by weight of alumina, and about 1 to about 8% by weight of a metal oxide selected from the group consisting of calcium oxide, strontium oxide, and sodium oxide, and mixtures thereof, wherein the material has been fired to a temperature in the range of 1400.degree. to 1700.degree. C., the material having a corrosion rate of no greater than 600 mils/yr.
- 4. The refractory ceramic material of claim 1, claim 2, or claim 3, wherein the material has a corrosion rate of no greater than 400 mils/yr.
- 5. The refractory ceramic material of claim 1, claim 2, or claim 3, wherein the material has a corrosion rate of no greater than 100 mils/yr.
- 6. The refractory ceramic material of claim 1, wherein the amount of silica is in the range of about 75 to about 90% by weight, and the amount of titania is in the range of about 10 to about 25% by weight.
- 7. The refractory ceramic material of claim 2, wherein the amount of silica is in the range of about 40 to about 73% by weight, the amount of titania is in the range of about 5 to about 24% by weight, and the amount of alumina is in the range of about 20 to about 44% by weight.
- 8. The refractory ceramic material of claim 3, wherein the amount of silica is in the range of about 40 to about 73% by weight, the amount of titania is in the range of about 5 to about 24% by weight, the amount of alumina is in the range of about 20 to about 44% by weight, and the amount of metal oxide selected from the group consisting of calcium oxide, strontium oxide, and sodium oxide, and mixtures thereof is in the range of about 3 to about 6% by weight.
- 9. The refractory ceramic material of claim 2 or claim 3, wherein the composition comprises kaolin clay.
- 10. The refractory ceramic material of claim 1, claim 2, or claim 3, wherein the material is a brick.
- 11. The refractory brick material of claim 10, further comprising a refractory filler composition selected from the group consisting of metal oxides, metal nitrides, metal carbides, silicates, aluminates, and mixtures thereof.
- 12. A method for chlorinating titanium-bearing material, wherein particulate coke, particulate titanium-bearing material and chlorine are reacted in a reactor at a temperature of 900.degree. to 1300.degree. C. and at a pressure of 1 to 3 atmospheres, wherein the reactor has a lining comprising the refractory ceramic material of claim 1, claim 2, or claim 3.
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a continuation-in-part of U.S. patent application Ser. No. 08/771,564 having a filing date of Dec. 20, 1996, now abandoned.
US Referenced Citations (5)
Foreign Referenced Citations (4)
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2 672 527 |
Aug 1992 |
FRX |
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R.W. Ricker and F.A. Hummel, Reactions in the System TiO2-SiO2; Revision of the Phase Diagram, Journal of The American Ceramic Society, 34, No. 9, 271-279, Sep. 1951. |
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Continuation in Parts (1)
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Number |
Date |
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Parent |
771564 |
Dec 1996 |
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