ES314604A1 - A procedure for the preparation of a granular material of non-pigmentary titanium dioxide. (Machine-translation by Google Translate, not legally binding) - Google Patents
A procedure for the preparation of a granular material of non-pigmentary titanium dioxide. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES314604A1 ES314604A1 ES0314604A ES314604A ES314604A1 ES 314604 A1 ES314604 A1 ES 314604A1 ES 0314604 A ES0314604 A ES 0314604A ES 314604 A ES314604 A ES 314604A ES 314604 A1 ES314604 A1 ES 314604A1
- Authority
- ES
- Spain
- Prior art keywords
- microns
- titanium
- tio2
- titanium dioxide
- solution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Glass Compositions (AREA)
- Detergent Compositions (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
A process for the preparation of a non-pigmentary granular titanium dioxide material capable of rapidly melting in a molten glass charge without releasing dust or settling, the granular material having a grain size range between less than 1680 microns and more than 37 microns, with at least 75% of more than 37 microns, and consisting essentially of agglomerated particles of titanium dioxide with an individual size range between 0.05 and 0.15 microns, the material having a bulk density that falls within from the margin of 0.8 to 1.7g per cm3 and which is freely flowing and capable of being handled without releasing dust, by digestion of a titaniferous material in concentrated sulfuric acid to form a digestion cake, dissolving the cake in aqueous media, reducing the amounts of iron in the solution to the ferrous state, and clarifying the solution characterized by that at least 75% of the clarified solution of sulfate of titanium-sulphate of iron, with a concentration within the range of 100 to 180 g of titanium per liter, calculated as TiO2, and a proportion of H2SO4/TiO2 of 1.7 to 2.3 and heated to 40-80º C, is added to heated water at least 80º with stirring for a period of 15-50 minutes, the volume of water used being 10% to 100% of the amount of solution used, keeping the temperature of the mixture between 60 and 80º C during the addition period, heating the mixture to the boiling temperature for a period between 15 and 75 minutes, boiling the mixture for at least one hour to hydrolyze the amounts of titanium and form an insoluble titanium hydrate, filtering, washing and whitening the titanium hydrate, calcining the titanium hydrate bleached at 800-1000º C, and subdividing the nodules of agglomerated particles of TiO2, formed during the calcination, into TiO2 granules of such size, which pass through a sieve of 1680 microns but which are retained. os on a sieve of 37 microns. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US378044A US3403977A (en) | 1964-06-25 | 1964-06-25 | Method for production of titanium dioxide granules |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES314604A1 true ES314604A1 (en) | 1965-10-01 |
Family
ID=59091787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES0314604A Expired ES314604A1 (en) | 1964-06-25 | 1965-06-24 | A procedure for the preparation of a granular material of non-pigmentary titanium dioxide. (Machine-translation by Google Translate, not legally binding) |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES314604A1 (en) |
-
1965
- 1965-06-24 ES ES0314604A patent/ES314604A1/en not_active Expired
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