Process for the preparation of solid state materials and said materials
First Claim
1. A process for producing solid state materials having a phase purity greater than about 99% and less than 1% in discrete separate phase compounds comprising (1) mixing together a metal containing solution and a second solution containing a precipitating agent to form a mixed solution, (2) pressurizing the mixed solution to a pressure in the range from about 1,000 to about 50,000 psig, (3) passing the mixed solution into a fluidizing apparatus wherein high shear forces act on the mixed solution, (4) depressurizing the mixed solution so as to cause cavitation, and (5) separating a solid state material from the cavitated mixed solution.
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Accused Products
Abstract
A process for the preparation of solid state materials such as catalysts, electrolytes, piezo electric materials and superconductors is disclosed. The process produces materials with high phase purity. Novel solid state materials having high phase purity are also disclosed.
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Citations
22 Claims
- 1. A process for producing solid state materials having a phase purity greater than about 99% and less than 1% in discrete separate phase compounds comprising (1) mixing together a metal containing solution and a second solution containing a precipitating agent to form a mixed solution, (2) pressurizing the mixed solution to a pressure in the range from about 1,000 to about 50,000 psig, (3) passing the mixed solution into a fluidizing apparatus wherein high shear forces act on the mixed solution, (4) depressurizing the mixed solution so as to cause cavitation, and (5) separating a solid state material from the cavitated mixed solution.
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2. The process of claim 2, wherein the pressure is of from about 12,000 to 25,000 psig.
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12. The process of claim 12, wherein the metal catalyst comprises a mixture of metals.
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20. A process for producing a metal-containing crystalline product comprising:
- (1) subjecting a metal-containing solution to high pressure at a pressure in the range from about 1,000 to about 50,000 psig and high shear force in the presence of a precipitating agent, (2) depressurizing the resulting solution; and
(3) transferring the depressurized solution to a crystallization vessel to affect hydrothermal synthesis of a metal-containing crystalline product. - View Dependent Claims (21, 22)
- (1) subjecting a metal-containing solution to high pressure at a pressure in the range from about 1,000 to about 50,000 psig and high shear force in the presence of a precipitating agent, (2) depressurizing the resulting solution; and
Specification