Claims
- 1. A method for increasing the water dispersibility of alpha-alumina monohydrate containing up to about 86 weight percent Al.sub.2 O.sub.3, said method comprising, admixing by dry blending an amount equal to from about 0.1 to about 50 weight percent, based on the weight of the alpha alumina monohydrate, of at least one salt compound selected from the group consisting of salts having the general formula MX, wherein M is a polyvalent metal cation constituent selected from the group consisting of Sc.sup.+3, Y.sup.+3, Nd.sup.+3, Sn.sup.+3, Eu.sup.+3, Gd.sup.+3, Er.sup.+3, Tm.sup.+3, Yb.sup.+3, Lu.sup.+3, Ti.sup.+3, Zr.sup.+4, Th.sup.+3, Cr.sup.+3, U.sup.+4, Mn.sup.+3, Fe.sup.+3, Co.sup.+3, Ru.sup.+3, Pd.sup.+2, Pt.sup.+2, Au.sup.+3, Al.sup.+3, Ga.sup.+3, In.sup.+3, Sn.sup.+2, Sn.sup.+4, Bi.sup.+3, and wherein X is an anion constituent derived from a monovalent acid and is selected from the group consisting of Cl.sup.-, NO.sub.3.sup.-, I.sup.-, ClO.sub.3, ClO.sub.4.sup.-, Br.sup.-, MnO.sub.4.sup.-, and phosphorous dichloride, phosphorus trichloride, phosphorous pentachloride, phosphorus tribromide, phosphorous pentabromide, and antimony pentachloride with said alpha
- 2. The method of claim 1 wherein said salt compound is admixed in an amount equal to from about 3 to about 10 weight percent based on the weight of
- 3. The method of claim 1 wherein said alpha alumina monohydrate is produced
- 4. The method of claim 1 wherein said alpha alumina monohydrate contains up
- 5. The method of claim 1 wherein said alpha alumina monohydrate contains up
- 6. The method of claim 1 wherein said alpha alumina monohydrate contains
- 7. The preferred method of claim 1 wherein M is selected from the group consisting of Sn.sup.+3, Ti.sup.+3, Cr.sup.+3, Mn.sup.+3, Fe.sup.+3, Co.sup.+3, Pd.sup.+2, Pt.sup.+2, Au.sup.+3, Al.sup.+3, Sn.sup.+2,
- 8. The method of claim 7 wherein X is selected from the group consisting of
- 9. The method of claim 1 wherein said salt compound is selected from the group consisting of phosphorus dichloride, phosphorus trichloride, phosphorus pentachloride and antimony pentachloride.
BACKGROUND OF THE INVENTION
This application is a continuation-in-part of my earlier filed application, U.S. Ser. No. 291,501, entitled "Water Dispersible Alumina," filed Sept. 22, 1972, now abandoned, which is in turn a continuation-in-part of my earlier filed application U.S. Ser. No. 140,945 of the same title filed May 6, 1971, now abandoned.
US Referenced Citations (4)
Continuation in Parts (2)
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Number |
Date |
Country |
Parent |
291501 |
Sep 1972 |
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Parent |
140945 |
May 1971 |
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