Potassium fluotitanate manufacture and device background
US9878919B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2010 |
| Grant date | Jan 30, 2018 |
| Priority date | — |
| Expiry date | Jul 29, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/0245
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention provides a Potassium Fluotitanate (K2TIF6) manufacture process. The Potassium Fluotitanate (K2TIF6) manufacture process includes steps: A. providing titanium ferrum powder to a reaction furnace and adding HF and peroxide solution to react with the titanium ferrum powder sufficiently to manufacture H2TiF6, B. filtrating the sufficiently mixed solution of step A and adding it to another reaction furnace, and then after the H2TiF6 cools off, adding Potassium Chloride (KCl) solution to react with the mixed solution to manufacture Potassium Fluotitanate (K2TiF6); C. adding K2CO3 solution to the remaining solution of step B and react with the remaining solution and controlling the pH value, the element Fe is recycled by a form of Fe(OH)3 flocculent precipitate and the Potassium Chloride (KCl) and KF solution are recycled. This invention has these advantages: adding peroxide to the titanium ferrum powder can oxidize Fe2+ into Fe3+ and adding K2CO3 solution to clean element Fe out by a form of Fe(OH)3 flocculent precipitate, and the hydrofluoric acid (HF) can be recycled which can realize the HF zero polluting discharge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.