Preparation of copper alkoxides and sol/gel precursors of superconducting ceramics
This patent describes a method for the preparation of high purity copper (II) alkoxides. It comprises reacting an alkali metal with an anhydrous, deoxygenated alcohol and recovering from the resulting reaction product an anhydrous, deoxygenated alcoholic alkali metal alkoxide solution; admixing anhydrous copper (II) fluoride with the alkali metal alkoxide solution; heating the mixture to a temperature of between from about ambient temperature and about 10{degrees}C below the boiling point of the alcohol for between about 0.25 hour and about 8 hours to form a solution of alkali metal fluoride and copper (II) alkoxide; ammoniating the alkali metal fluoride and copper (II) solution with anhydrous ammonia to form a saturated ammoniacal alcoholic solution of ammoniacal copper (II) alkoxide in solution and an alkali metal fluoride precipitate; and recovering an alkali metal free ammoniacal copper (II) alkoxide in solution and an alkali metal fluoride precipitate; and recovering an alkali metal free ammoniacal copper (II) alkoxide solution.
- Assignee:
- General Atomics, San Diego, CA (USA)
- Patent Number(s):
- A; US 5006508
- Application Number:
- PPN: US 7-306539
- OSTI ID:
- 5059410
- Country of Publication:
- United States
- Language:
- English
Similar Records
Preparing of precursors for yttrium-containing ceramic superconductors
New phosphanyl-substituted titanium and zirconium alkoxide precursors for sol-gel processing