Claims
- 1. A metal support for a catalyst, comprising a substantially homogeneous base metal, the base metal having a chromium equivalent percentage above about 8, the chromium equivalent percentage being defined by
- Chromium equivalent %=(%Cr)+(3.0)(%Al)+(1.5)(%Si),
- the amount of silicon being less than about 1% and the amount of aluminum being less than about 3%, the remainder of the base metal being mostly iron, the base metal having a coating of substantially pure aluminum, wherein the coated base metal comprises a foil having a thickness in the range of about 0.0015-0.0040 inches.
- 2. The support of claim 1, wherein the amount of chromium in the base metal is less than about 14%.
- 3. A metal support for a catalyst, comprising a substantially homogeneous base metal, the base metal having a chromium equivalent percentage in the range of about 3 to about 15, the chromium equivalent percentage being defined by
- Chromium equivalent %=(%Cr)+(3.0)(%Al)+(1.5)(%Si),
- the amount of silicon being less than about 1%, the amount of aluminum being less than about 3%, the base metal being sustantially free of nickel, the remainder of the base metal being mostly iron, the base metal having a coating of substantially pure aluminum, and wherein the coated base metal has a thickness greater than about 0.010 inches.
- 4. The support of claim 3, wherein the amount of chromium in the base metal is less than about 14%.
- 5. A metal support for a catalyst, comprising a substantially homogeneous base metal, the base metal having a chromium equivalent percentage in the range of about 8 to about 15, the chromium equivalent percentage being defined by
- Chromium equivalent %=(%Cr)+(3.0)(%Al)+(1.5)(%Si),
- the remainder of the base metal being mostly iron, the base metal having a coating of substantially pure aluminum, the amount of aluminum in the base metal being less than about 3%, and the amount of silicon in the base metal being less than about 1%.
- 6. The support of claim 5, wherein the amount of chromium in the base metal is less than about 14%.
- 7. A metal support for a catalyst, comprising a substantially homogeneous base metal, the base metal having a chromium equivalent percentage in the range of about 3 to about 30, the chromium equivalent percentage being defined by
- Chromium equivalent %=(%Cr)+(3.0)(%Al)+(1.5)(%Si),
- the base metal being substantially free of nickel, the amount of silicon in the base metal being less than about 1%, the amount of aluminum being less than about 3%, the base metal having a coating of substantially pure aluminum, and wherein the coated base metal has a thickness greater than about 0.010 inches.
- 8. The support of claim 7, wherein the amount of chromium in the base metal is less than about 14%.
- 9. A metal support for a catalyst, comprising a substantially homogeneous base metal, the base metal having a chromium equivalent percentage above about 8, the chromium equivalent percentage being defined by
- Chromium equivalent %=(%Cr)+(3.0)(%Al)+(1.5)(%Si),
- the base metal being substantially free of nickel, the amount of silicon in the base metal being less than about 1%, the amount of aluminum in the base metal being less than about 3%, the base metal having a coating of substantially pure aluminum, wherein the coated base metal comprises a foil having a thickness in the range of about 0.0015-0.0040 inches.
- 10. The support of claim 9, wherein the amount of chromium in the base metal is less than about 14%.
CROSS-REFERENCE TO PRIOR APPLICATION
This is a continuation-in-part of U.S. patent application Ser. No. 549,911, filed Nov. 9, 1983, now abandoned.
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Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
549911 |
Nov 1983 |
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