Method for preparing sponge titanium from potassium fluotitanate by aluminothermic reduction
US8864873B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2012 |
| Grant date | Oct 21, 2014 |
| Priority date | — |
| Expiry date | Jan 8, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22B34/1277
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention provides a method for preparing sponge titanium from potassium fluotitanate by aluminothermic reduction, comprising the following steps: a reaction step: aluminum and zinc are mixed under a vacuum state, and the mixture is then reacted with potassium fluotitanate; a distillation step: KF, AlF3 and Zn generated by reaction are distilled out under a vacuum state; and a cooling step: sponge titanium is obtained subsequent to banking cooling. The invention further provides another method for preparing sponge titanium from potassium fluotitanate by aluminothermic reduction, comprising the following steps: a reaction step: aluminum and magnesium are mixed under a vacuum argon introduction condition, and the mixture is then reacted with potassium fluotitanate; a distillation step: KF, AlF3, MgF2 and Mg generated by reaction are distilled out under a vacuum state; and a cooling step: sponge titanium is obtained subsequent to banking cooling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.