Organo-aluminum hydroxide compounds
AssigneeAluminum Company of America
InventorChanakya Misra
Life of this patent
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Abstract
Disclosed is a crystalline compound and a method for forming the compound having a chemical composition expressed, in terms of molar ratios, by the formula: M.n[R(COOH).sub.x ] wherein M is aluminum hydroxide, n is the number of moles of organic material reacted with a mole of M, R is an organic functional group having carboxylic acid attached thereto, and x is equal to or greater than 2.
Claims110
A method of preparing a water insoluble crystalline alumino-organic compounds having new characteristic x-ray diffraction patterns which do not correspond to the acid or anhydrous aluminum salt of the acid used and which have a chemical composition expressed in terms of molar ratios, by the formula:
- M.n[R(COOH).sub.x ]
- wherein M is aluminum hydroxide, n is the number of moles of organic material reacted with a mole of M, R is an organic functional group and x is equal to or greater than 2, the method comprising reacting a mixture of an aluminum hydroxide material and an organic material in an aqueous solvent, the organic material containing at least two carboxylic acid groups to form said crystalline alumino-organic compound.
A method of preparing a water insoluble crystalline alumino-organic compounds having new characteristic x-ray diffraction patterns which do not correspond to the acid or anhydrous aluminum salt of the acid used and which have a chemical composition expressed in terms of molar ratios, by the formula:
- M.n[R(COOH).sub.x ]
- wherein M is aluminum hydroxide, n is the number of moles of organic material reacted with a mole of M, R is an organic functional group and x is equal to or greater than 2, the method comprising the steps of:
- (a) dissolving an organic polycarboxylic acid in an aqueous base liquid solvent to provide a solution;
- (b) adding aluminum hydroxide to said solution to form a mixture;
- (c) heating said mixture to a temperature sufficient to cause said polycarboxylic acid to react with said aluminum hydroxide to form the alumino-organic compound;
- and
- (d) recovering said alumino-organic compound.
A method of preparing a water insoluble crystalline alumino-organic compounds having new characteristic x-ray diffraction patterns which do not correspond to the acid or anhydrous aluminum salt of the acid used and which have a chemical composition expressed in terms of molar ratios, by the formula:
- M.n[R(COOH).sub.x ]
- wherein M is aluminum hydroxide, n is the number of moles of organic material reacted with a mole of M, R is an organic functional group and x is equal to or greater than 2, the method comprising the steps of:
- (a) dissolving a polycarboxylic acid in water to provide a solution having an acid concentration in the range of 0.01 to 3.0 moles;
- (b) adding aluminum hydroxide to said solution to provide a concentration thereof in the range of 0.1 to 3.0 moles per mole of polycarboxylic acid;
- (c) heating said mixture to a temperature in the range of 100.degree.to 250.degree. C. to cause said acid to react with said aluminum hydroxide to form said crystalline alumino-organic compound;
- and
- (d) recovering the compound from the solution.
A method of preparing a water insoluble crystalline alumino-organic compounds having new characteristic x-ray diffraction patterns which do not correspond to the acid or anhydrous aluminum salt of the acid used and which have a chemical composition expressed in terms of molar ratios, by the formula:
- M.n[COOH]x
- wherein M is aluminum hydroxide, n is the number of moles of organic material reacted with a mole of M and x is equal to or greater than 2, the method comprising reacting a mixture of an aluminum hydroxide material and oxalic acid to form said crystalline alumino-organic compound, the compound having an X-ray diffraction pattern designated B in FIG. 1.
A water insoluble crystalline anhydrous compound having new characteristic x-ray diffraction patterns which do not correspond to the acid or anhydrous aluminum salt of the acid used and which have a chemical composition expressed in terms of molar ratios, by the formula:
- M.n[R(COOH).sub.x ]
- wherein M is a metal hydroxide selected from aluminum hydroxide, n is the number of moles of organic material reacted with a mole of M, R is an organic functional group and x is equal to or greater than 2.
A water insoluble crystalline anhydrous compound having new characteristic x-ray diffraction patterns which do not correspond to the acid or anhydrous aluminum salt of the acid used and which have a chemical composition expressed in terms of molar ratios, by the formula:
- M.n[COOH]x
- wherein M is aluminum hydroxide, n is the number of moles of organic material reacted with a mole of M and x is equal to or greater than 2 and the compound has an X-ray diffraction pattern designated B in FIG. 1.
A water insoluble crystalline anhydrous compound having new characteristic x-ray diffraction patterns which do not correspond to the acid or anhydrous aluminum salt of the acid used and which have a chemical composition expressed in terms of molar ratios, by the formula:
- M.n[R(COOH).sub.x ]
- wherein M is aluminum hydroxide, n is in the range of 0.01 to 3.0 and is the number of moles of organic material reacted with a mole of M, R is an organic functional group having 0 to 15 carbon atoms and x is in the range of 2 to 4.
A water insoluble crystalline anhydrous compound having new characteristic x-ray diffraction patterns which do not correspond to the acid or anhydrous aluminum salt of the acid used and which have a chemical composition expressed in terms of molar ratios, by the formula:
- ##EQU1## wherein R is an organic group, x is the number of dicarboxylic acid groups and n is the number of moles of organic material reacted with a mole of aluminum hydroxide.
A water insoluble crystalline anhydrous compound having new characteristic x-ray diffraction patterns which do not correspond to the acid or anhydrous aluminum salt of the acid used, the compound comprised of aluminum hydroxide and polycarboxylic acid, the polycarboxylic acid being present in the compound on a mole basis in the range of 0.05 to 2 moles per mole of aluminum hydroxide.
A water insoluble crystalline anhydrous compound having new characteristic x-ray diffraction patterns which do not correspond to the acid or anhydrous aluminum salt of the acid used, the compound comprised of oxalic acid and gibbsite, the acid being present in the compound on a mole basis in the range of 0.05 to 1 moles per mole of said material, the compound having an X-ray diffraction pattern designated B in FIG. 1.
A water insoluble crystalline anhydrous compound having new characteristic x-ray diffraction patterns which do not correspond to the acid or anhydrous aluminum salt of the acid used, the compound comprised of malonic acid and gibbsite, the acid being present in the compound on a mole basis in the range of 0.01 to 3 moles per mole of said material, the compound having an X-ray diffraction pattern designated B in FIG. 2.
A water insoluble crystalline anhydrous compound having new characteristic x-ray diffraction patterns which do not correspond to the acid or anhydrous aluminum salt of the acid used, the compound comprised of maleic acid and boehmite, the acid being present in the compound on a mole basis in the range of 0.01 to 3 moles per mole of said material, the compound having an X-ray diffraction pattern designated B in FIG. 17.
A water insoluble crystalline anhydrous compound having new characteristic x-ray diffraction patterns which do not correspond to the acid or anhydrous aluminum salt of the acid used, the compound comprised of succinic acid and gibbsite, the acid being present in the compound on a mole basis in the range of 0.01 to 3 moles per mole of said material, the compound having an X-ray diffraction pattern designated B in FIG. 7.
A water insoluble crystalline anhydrous compound having new characteristic x-ray diffraction patterns which do not correspond to the acid or anhydrous aluminum salt of the acid used, the compound comprised of glutaric acid and gibbsite, the acid being present in the compound on a mole basis in the range of 0.01 to 3 moles per mole of said material, the compound having an X-ray diffraction pattern designated B in FIG. 9.
A water insoluble crystalline anhydrous compound having new characteristic x-ray diffraction patterns which do not correspond to the acid or anhydrous aluminum salt of the acid used, the compound comprised of adipic acid and gibbsite, the acid being present in the compound on a mole basis in the range of 0.01 to 3 moles per mole of said material.
A water insoluble crystalline anhydrous compound having new characteristic x-ray diffraction patterns which do not correspond to the acid or anhydrous aluminum salt of the acid used, the compound comprised of fumaric acid and gibbsite, the acid being present in the compound on a mole basis in the range of 0.01 to 3 moles per mole of said material.
A water insoluble crystalline anhydrous compound having new characteristic x-ray diffraction patterns which do not correspond to the acid or anhydrous aluminum salt of the acid used, the compound comprised of citric acid and gibbsite, the acid being present in the compound on a mole basis in the range of 0.01 to 3 moles per mole of said material, the compound having an X-ray diffraction pattern designated B in FIG. 11.
A water insoluble crystalline anhydrous compound having new characteristic x-ray diffraction patterns which do not correspond to the acid or anhydrous aluminum salt of the acid used, the compound comprised of itaconic acid and gibbsite, the acid being present in the compound on a mole basis in the range of 0.01 to 3 moles per mole of said material, the compound having an X-ray diffraction pattern designated B in FIG. 15.
A water insoluble crystalline anhydrous compound having new characteristic x-ray diffraction patterns which do not correspond to the acid or anhydrous aluminum salt of the acid used, the compound comprised of pimelic acid and gibbsite, the acid being present in the compound on a mole basis in the range of 0.01 to 3 moles per mole of said material, the compound having an X-ray diffraction pattern designated B in FIG. 13.
Dependencies are inferred from the claim text.