| Patent application number | Description | Published |
|---|
| 20080279760 | Method of making titanium dioxide particles - The disclosure provides a process for preparing nanocrystalline titanium dioxide, in particular rutile nanocrystalline titanium dioxide, comprising: (a) precipitating a mixture comprising hydrated titanium oxide and a separable filtering agent; (b) filtering the precipitated mixture to form a filter cake comprising the precipitated hydrated titanium dioxide and a separable filtering agent, (c) calcining the precipitated hydrated titanium oxide and separable filtering agent at a temperature of greater than about 300 C; and (d) removing the separable filtering agent thereby recovering titanium dioxide particles. | 11-13-2008 |
| 20100011990 | MESOPOROUS AMORPHOUS OXIDE OF TITANIUM - This invention pertains to a mesoporous amorphous oxide of titanium and processes of making a mesoporous amorphous oxide of titanium. | 01-21-2010 |
| 20100022385 | SUSPENSIONS OF SURFACE TREATED TITANIUM (IV) OXIDES AND PROCESSES FOR MAKING THEM - The disclosure relates to a process for making a surface treated suspension of finely divided titanium (IV) oxide particles, typically, finely divided titanium (IV) oxide nanoparticles, comprising:
| 01-28-2010 |
| 20100028252 | PROCESSES FOR THE FLUX CALCINATION PRODUCTION OF TITANIUM DIOXIDE - Processes for the production of rutile titanium dioxide from titanyl hydroxide using calcination with a flux are provided. Calcination in the presence of sodium chloride flux has been found to lower the calcination temperature used to produce the rutile form of titanium dioxide and to improve control of particle size. | 02-04-2010 |
| 20100055028 | SUSPENSIONS OF TITANIUM (IV) OXIDE PARTICLES AND PROCESS FOR THEIR PRODUCTION - The disclosure pertains to a process for making a suspension of finely divided titanium (IV) oxide particles, comprising: | 03-04-2010 |
| 20100092377 | PROCESS FOR MAKING ANATASE TITANIUM (IV) OXIDE - The disclosure pertains to a process for making anatase titanium dioxide particles, comprising:
| 04-15-2010 |
| 20100144518 | SELF-DEAGGLOMERATING SUSPENSIONS OF TITANIUM (IV) OXIDES AND METHODS FOR MAKING THEM - A process for making a self-deagglomerating suspension, in particular, a suspension which self-deagglomerates to form a substantially transparent suspension, of finely divided titanium (IV) oxide particles, comprising:
| 06-10-2010 |
| 20100247413 | LUMINESCENT SAMARIUM-DOPED TITANIUM DIOXIDE - This disclosure relates to a process for making luminescent titanium dioxide, comprising: precipitating a halide salt and a hydrolyzed compound comprising titanium from a reaction mixture comprising a source of samarium, a titanium starting material selected from the group consisting of titanium tetrachloride, titanium oxychloride, and mixtures thereof, a base selected from the group consisting of ammonium hydroxide, ammonium carbonate, ammonium bicarbonate, tetramethyl ammonium hydroxide or tetraethyl ammonium hydroxide or mixture thereof, and a solvent selected from the group consisting of ethanol, n-propanol, i-propanol, dimethyl acetamide, alcoholic ammonium halide and aqueous ammonium halide and mixtures thereof to form a precipitate; and removing the halide salt from the precipitate to recover a samarium-doped oxide of titanium. | 09-30-2010 |
| 20100266487 | HIGH TEMPERATURE STABLE ANATASE TITANIUM DIOXIDE - This disclosure relates to a process for making titanium dioxide in an anatase crystalline form which is stable at temperatures above 1000° C., comprising: precipitating a halide salt and a hydrolyzed compound comprising titanium from a reaction mixture comprising a titanium starting material selected from the group consisting of titanium tetrachloride, titanium oxychloride, and mixtures thereof, a base selected from the group consisting of ammonium hydroxide, ammonium carbonate, ammonium bicarbonate, tetramethyl ammonium hydroxide or tetraethyl ammonium hydroxide or mixture thereof, a solvent selected from the group consisting of ethanol, n-propanol, i-propanol, dimethyl acetamide, alcoholic ammonium halide and aqueous ammonium halide and mixtures thereof, a source of aluminum and a source of silicon to form a precipitate; and removing the halide salt from the precipitate to recover a oxide of titanium in a predominantly anatase crystalline form. The disclosure additionally relates to anatase which is stable at temperatures above 1000° C. | 10-21-2010 |
| 20100270503 | METHOD OF MAKING PHOTOLUMINESCENT SAMARIUM-DOPED TITANIUM DIOXIDE PARTICLES - The disclosure provides a process for preparing photoluminescent samarium-doped titanium dioxide, typically in the rutile phase, comprising: precipitating, preferably at a pH of about 2 to about 3, a mixture comprising hydrated titanium oxide, a source of samarium, and a separable filtering agent to form a precipitated mixture comprising precipitated samarium-doped hydrated titanium oxide and the separable filtering agent; filtering the precipitated mixture to form a filter cake comprising the precipitated samarium-doped hydrated titanium oxide and the separable filtering agent; calcining the precipitated samarium-doped hydrated titanium oxide and separable filtering agent at a temperature of greater than about 300° C. to form a mixture comprising samarium-doped titanium dioxide and the separable filtering agent; and removing the separable filtering agent to recover samarium-doped titanium dioxide particles. | 10-28-2010 |
