Process for manufacturing titanium compounds
US4288416A · kind A · utility
11Cited by
9References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 30, 1980 |
| Grant date | Sep 8, 1981 |
| Priority date | — |
| Expiry date | May 30, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process is provided for the manufacture of titanium compounds and particularly titanium dioxide wherein excess titaniferous bearing material is reacted with dilute sulfuric acid having a concentration of between about 25% and about 60% by weight at a temperature below about 140.degree. C. Thereafter, the titanium sulphate may be recovered or processed to provide titanium dioxide hydrate accompanied by recycling the spent acid for reaction with the titaniferous bearing material charged to the process. The titanium hydrate may be calcined to provide titanium dioxide pigment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.