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7601319 |
Process for the manufacture of monobasic potassium phosphate
A process for producing monobasic potassium phosphate is provided wherein a reaction mixture of phosphoric acid is combined with potassium hydroxide. The resulting product is cooled to allow...
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7566432 |
Method of synthesizing zirconium phosphate particles
Zirconium phosphate particles are synthesized by providing a solution of zirconium oxychloride in an aqueous solvent, adding at least one oxygen-containing additive to the solution, the...
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7557060 |
Solid phosphoric acid with controlled porosity
The present invention relates to a solid phosphoric acid catalyst and a process for conversion of hydrocarbons using a solid phosphoric acid catalyst. The solid phosphoric acid catalyst comprises...
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7385803 |
Tetravalent metal acid triphosphates
This invention is based on the preparation of new solid acid triphosphates with compositions of the general formula M(IV)(HPO4)(H2PO4)2, where M(IV) is a tetravalent metal or a mixture of...
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7374740 |
Process for producing high purity phosphates
Phosphate rock is reacted with phosphoric acid to produce monobasic calcium phosphate. Monobasic calcium phosphate is reacted with ammonium carbonate to produce ammonium phosphate. Dibasic calcium...
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7374739 |
Calcium phosphate bone replacement materials and methods of use thereof
Methods of making porous calcium phosphate bone replacement materials are discussed.
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7354966 |
Compounds for use as surfactants
Compounds of formula (I):
and uses of such compounds are described.
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7273596 |
Method of producing granulated anhydrous dicalcium phosphate
A new and useful method of simultaneously producing and granulating anhydrous dicalcium phosphate is provided. Such a method entails the reaction of concentrated phosphoric acid with a powdered...
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7255962 |
Eulytite solid acid electrolytes for electrochemical devices
Improved solid acid electrolyte materials, methods of synthesizing such materials, and electrochemical devices incorporating such materials are provided. The stable electrolyte material comprises a...
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7169372 |
Method for producing nano-sized crystalline hydroxyapatite
A mechanism and technological process for synthesizing nano-sized crystalline hydroxyapatite. In particular, for producing nano-sized crystalline hydroxyapatite whose particles have nano dimensions...
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7153482 |
Rod shaped apatite crystals having a specific length-to-width ratio
The rod-shaped apatite crystals of the formula Ca 5 (PO 4 ) 3 (OH) x F y have the following features
a) the length-to-breadth ratio of the crystals is at least ≧5 and b) x+y=1, where if x or...
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7150862 |
Method of manufacturing powder
A method of manufacturing a powder, by which it is possible to adjust the strength of the obtained powder is provided. The manufacturing method of a powder involves a step of preparing a slurry...
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7101522 |
Production of dicalcium phosphate or monocalcium phosphate
A process is provided for the production of dicalcium phosphate form a phosphate source material in which a solution of phosphoric acid is produced by the action of a suitable mineral acid,...
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7018460 |
Self-hardening calcium phosphate materials with high resistance to fracture, controlled strength histories and tailored macropore formation rates
A bone replacement material and therapy comprises the combination of calcium phosphate compounds and two or more soluble fillers in the form of fibers, mesh or other materials which have the dual...
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6960328 |
Zirconium phosphate and method of making same
A zirconium phosphate compound having a Zr:P ratio of from about 1.80-2.0 to 1, which compound's H-form exhibits a single peak at −13.7±0.5 ppm in the 31 P NMR spectra. The compound is useful...
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6936175 |
Zirconium phosphate, hafnium phosphate and method of making same
The invention relates to zirconium phosphate of H form which is characterized by a 31 P NMR spectra comprising peaks at −4.7 ppm, −12.8 ppm and −17.0 ppm (all peaks being in a range of ±0.5...
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6911188 |
Production of two alkali metal salts by a combined ion exchange and crystallization process
The invention relates a process for producing an alkali metal nitrate and an alkali metal phosphate in the same process from a phosphate raw material and a nitrate raw material comprising the steps...
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6881227 |
Hydroxylapatite material containing tricalcium phosphate with microporous structure
The invention relates to a hydroxylapatite material containing phosphate wherein the microporous structure of algae hard-tissue raw material is retained in the end product and which can be obtained...
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6818196 |
Zirconium phosphate and method of making the same
A method of making sodium zirconium carbonate is described which involves forming a mixture of zirconium oxychloride with soda ash and then heating at a sufficient temperature and for a sufficient...
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6720023 |
Method for preparation of the supersaturated solution of calcium phosphate and the thin film of calcium phosphate crystal by using the solution
The present invention relates to a method for preparation of the supersaturated calcium and phosphate ions solution and a method for preparation of the thin film of calcium phosphate crystal on...
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6689335 |
Silver ion sequester and release agent
A silver ion sequester and release agent is described which comprises a silver ion exchangeable material of the formula: M(H 1−x−y Ag x M′ y PO 4 ) 2 .nH 2 O; where M is Zr, Ti, Sn, Ge or Hf...
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6652823 |
Process for the synthesis of VPO catalysts
Process for the preparation of a vanadium phosphate catalyst comprising treatment of a vanadium compound with formic acid, water and a phosphorus compound.
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6599493 |
Method for preparing hydrous iron oxide gels and spherules
The present invention is directed to methods for preparing hydrous iron oxide spherules, hydrous iron oxide gels such as gel slabs, films, capillary and electrophoresis gels, iron monohydrogen...
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6585946 |
Process for the preparation of magnesium and carbonate substituted hydroxyapatite
A process for the preparation of a single phase magnesium- and carbonate-substituted hydroxyapatite composition, which process comprises the steps of (i) preparing an aqueous solution containing CO...
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6582672 |
Method for the preparation of carbonated hydroxyapatite compositions
A process for the preparation of a single phase carbonate-substituted hydroxyapatite composition, which process comprises the steps of (i) preparing an aqueous solution containing Co 3 2− and PO...
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6569396 |
Method for producing calcium phosphate powder
The present invention provides a method of manufacturing calcium phosphate powder comprising the steps of preparing a mixed material by mixing calcium hydroxide (Ca(OH) 2 ) powder and calcium...
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6565756 |
Method for the conditioning of phosphoric acid
A method for the conditioning of phosphoric acid containing solutions is described, wherein the solution is converted to a solid material by adding an aluminum compound. This solid material can...
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6334891 |
Paste compositions capable of setting into carbonated apatite
Carbonated hydroxyapatite compositions and their preparation are described. The compositions are biologically resorbable and are prepared as flowable masses which can be administered by syringe to...
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6312468 |
Silicon-substituted apatites and process for the preparation thereof
The present invention provides a synthetic silicon-substituted apatite or hydroxyapatite which comprises 0.1% to 5% by weight of silicon. The silicon-substituted apatite or hydroxyapatite may be...
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6183711 |
Apatite-forming-systems: methods and products
Methods comprise contacting apatite-forming-systems with partially alkylated xanthines. The methods include pharmaceutical applications of partially alkylated xanthines to mitigate the effects of...
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6110851 |
Process for producing a ceramic material based on calcium phosphate compounds and use of this material
A method of producing a ceramic material based on calcium phosphate compounds for use in dental medicine by adding a phosphate solution to a calcium salt solution, separating the precipitation...
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6051200 |
Process for preparing hemipotassium phosphate
There is disclosed a novel process for preparing hemipotassium phosphate useful as an acidulant for beverages. An equimolar mixture of monopotassium phosphate and phosphoric acid is heated to a...
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6002065 |
Kits for preparing calcium phosphate minerals
Setting times of calcium phosphate cement compositions are enhanced by the addition of phosphate or carbonate lubricant compositions. Methods for preparing the cement compositions are provided.
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5997833 |
Apparatus and process for purifying highly impure calcium hydroxide and for producing high-value precipitated calcium carbonate and other calcium products
A solution process for the purification of calcium hydroxide, particularly from hydrated carbide lime, which is subsequently used as a feed stock for a high-value calcium product, preferably...
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5997624 |
Self-setting calcium phosphate cements and methods for preparing and using them
The invention includes methods and compositions relating to calcium phosphate cements, which self-harden substantially to hydroxyapatite at ambient temperature when in contact with an aqueous...
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5962028 |
Carbonated hydroxyapatite compositions and uses
Carbonated hydroxyapatite compositions and their preparation are described. The compositions are biologically resorbable and are prepared as flowable masses which can be administered by syringe to...
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5919426 |
Products of apatite-forming-systems
Products comprise apatite formed from apatite-forming-systems contacted with partially alkylated xanthines.
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5858318 |
Methods of synthesizing hydroxyapatite powders and bulk materials
Methods are provided for producing non-porous controlled morphology hydroxyapatite granules of less than 8 μm by a spray-drying process. Solid or hollow spheres or doughnuts can be formed by...
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5846500 |
Process for purifying highly impure calcium hydroxide and for producing high-value precipitated calcium carbonate and other calcium products
A solution process for the purification of calcium hydroxide, particularly from hydrated carbide lime, which is subsequently used as a feed stock for a high-value calcium product, preferably...
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5820632 |
Prepared calcium phosphate composition and method
Setting times of calcium phosphate cement compositions are enhanced by the addition of phosphate or carbonate lubricant compositions. Methods for preparing the cement compositions are provided.
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5711779 |
Method for forming zinc phosphate based glasses
A method for the manufacture of phosphate glass comprising forming an aqueous slurry by mixing phosphoric acid, a zinc compound and other batch materials in the required proportions, heating the...
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5702677 |
Spherical hydroxyapatite particles and process for the production thereof
A process for producing spherical, non-porous hydroxyapatite particles having a size which does not exceed 250 microns and having a density of at least 3.00 g/cc. The process comprises...
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5693303 |
Method for the production of a calcium phosphate product
A method for the production of condensed molasses solubles-enriched calcium phosphate includes the step of reacting, in an exothermic reaction, a predetermined amount of a calcium oxide-containing...
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5652056 |
Hydroxyapatite filament
A substantially pure hydroxyapatite filament provides the reinforcement for composite materials used for bone replacement and repair. Its biocompatibility and high strength reveal opportunities for...
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5590053 |
Method of determining a space group
A method of determining a space group corresponding to a crystal structure includes a first step of reading a data structure of a target crystal. The data corresponding to the target crystal...
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5582768 |
Phosphor and method of making same
Electroluminescent phosphors having substantially increased luminance and maintenance over that of prior art electroluminescent phosphors may be made by (1) doping an inorganic intercalation...
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5580623 |
Storage stable partially neutralized acid compositions and uses
Methods and compositions are provided for preparing storage stable partially neutralized acid compositions. The partially neutralized acid compositions are amenable to prolonged periods of storage....
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5550172 |
Utilization of biocompatible adhesive/sealant materials for securing surgical devices
A process for enhancing the security of implantable surgical devices secured to bone tissue comprising implanting in bone tissue a surgical device with a biocompatible adhesive and/or sealant...
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5486365 |
Calcium hydrogen phosphate, a method for preparing it, and an excipient utilizing it
The object of the present invention is to prepare a calcium hydrogen phosphate that has excellent binding properties, a large oil adsorption capacity and a specific surface area, and is therefore...
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5482526 |
Method for forming a non-hygroscopic zinc-phosphate compound and a zinc-phosphate glass
The instant invention describes a method for preparing a stable, anhydrous non-hygroscopic zinc phosphate compound which is suitable for use as a batch material in the preparation of zinc-phosphate...
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