Claims
- 1. A method for converting asbestos-containing maerial covering a metal surface into a non-regulated material and imhibiding corrosion of the metal surface, said method comprising contacting the asbestos-containing material with a composition which comprises a combination of at least two multiple-functional group reagents, in which each reagent comprises a fluoro acid component and a corrosion inhibiting component, said corrosion inhibiting component comprising a functional group selected from the group consisting of a phosphate, aliphatic amine, aromatic amine and a poly aromatic amine, wherein the asbestos is converted to a non-regulatcd material and corrosion of the metal substrate is inhibited.
- 2. The method of claim 1, wherein said asbestos-containing material is selected from the group consisting of amosite-containing material, chrysotile-containing material and mixtures thereof.
- 3. The method of claim 2, wherein said non-regulated material includes silica gel.
- 4. The method of claim 1, wherein said asbestos-containing material comprises amosite.
- 5. The method of claim 4, wherein said non-regulated material includes quartz.
- 6. The method of claim 1, wherein said composition comprises an admixture of a first multiple-functional group reagent, consisting of fluorophoschoric acid, and at least one multiple-functional group reagent selected from the group consisting of triethylamine tris (hydrogen fluoride), hydrogen fluoride-pyridine and poly.
- 7. The method of claim 6, wherein each of said multiple-functional group reagents is in a concentration from about 0.5M to about 6.0M.
- 8. The method of claim 6, wherein said admixunre is prepared by mixing a first multiple-functional group reagent, consisting of from about 0.5M to about 3.0M fluorophosphoric acid, with a second multiple-functional group reagent selected from the group consisting of from about 0.5M to about 2.0M triethylamine tris (hydrogen fluoride), from about 0.5M to about 2.0M hydrogen fluoride-pyddine and from about 0.5M to about 2.0M ploy.
- 9. The method of claim 8, wherein said admixture is prepared by mixing equal amounts by weight of said first multiple-functional group reagent and said second multiple-funtional group reagent.
- 10. A composition for convening asbestos-containing material covering a metal surface into a non-regulated material and inhibiting corrosion of the metal surface, said compositon comprising a combination of at least two multiple-functional group reagents, in which each reagent comprises a fluoro acid component and a corrosion inhibiting component, said corrosion inhibiting component comprising a functional group selected from the group consisting of a phosphate, aliphatic amine, aromatic and a poly aromatic amine.
- 11. The composition of claim 10, wherein said asbestos-containing material is selected from the group consisting of amosite-containing material, chrysotile-containing material and mixtures thereof.
- 12. The composition of claim 11, wherein said non-regulated material includes silica.
- 13. The composition of claim 10, wherein said asbestos-containing material comprises amosite.
- 14. The composition of claim 13, wherein said non-regulated material includes quartz.
- 15. The composition of claim 10, wherein said composition comprises an admixture of a first multple-functional group reagent, consisting of fluorophosphoric acid, and at least one multiple-functional group reagent selected from the group consistig of trietylamine tris (hydrogen fluoride), hydrogen fluoride-pyridine and poly.
- 16. The composition of claim 15, wherein each of said multiple-functional group reagents is in a concentation from about 0.5M to about 6.0M.
- 17. The composition of claim 15, wherein said admixture is preared by mixing a first multiple-functional group reagent, consisting of from about 0.5M to about 3.0M fluorophosphoric acid, with a second multiple-functional group reagents is in a concentration from about 0.5M to about 2.0M triethylamine tris (hydrogen fluoride), from about 0.5M to about 2.0M hydrogen fluorlde-pyridine and from about 0.5M to about 2.0M poly.
- 18. The composition of claim 17, wherein said admixture is prepared by mixing equal amounts by weight of said first multiple-functional group reagent and said second multiple-functional group reagent.
Government Interests
This invention was made with Government support under contract number DE-AC02-76CH00016, awarded by the U.S. Department of Energy. The Government has certain rights in the invention.
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Foreign Referenced Citations (2)
Number |
Date |
Country |
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Nov 1982 |
SUX |
WO 8810234 |
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WOX |
Non-Patent Literature Citations (1)
Entry |
T. Sugama, R. Sabatini and L. Petrakis, "Decomposition of Chrysotile Asbestos by Fluorosulfonic Acid," Ind. Eng. Chem. Res., vol. 37, No. 1, 1998. |