Chromium oxide → Bismuth oxide antimony oxide chromium oxide boron oxide
Reaction equation
[Bi:1]=[O:2].[Sb:3]=[O:4].[O-2:5].[Cr+3:6].[O-2].[O-2].[Cr+3].[B:10]=O>>[Bi:1]=[O:2].[Sb:3]=[O:4].[O-2:2].[Cr+3:6].[O-2:2].[O-2:2].[Cr+3:6].[B:10]=[O:5]Participants
Procedure
A bismuth oxide powder (whose average particle size is about 2 to 3 μm) and an antimony oxide fine powder (whose average particle size is about 2 to 3 μm) were mixed at a weight ratio of 85:15. The mixed powder was heat treated at a temperature of 550° C. for 5 hrs. Further, a bismuth oxide powder (whose average particle size is about 2 to 3 μm), a chromium oxide fine powder (whose average particle size is about 0.5 to 1.5 μm) and a boron oxide powder (whose average particle size is about 2 to 3 μm) were mixed at a weight ratio of 93:2:4. The mixed powder was heat treated at a temperature of 500° C. for 1 hr. The mixed powder which was heat treated was ground fine to obtain a synthetic powder of bismuth oxide/antimony oxide/chromium oxide/boron oxide (whose average particle size is about 2 to 3 μm).
Workup
- temperatureThe mixed powder was heat
- additiontreated at a temperature of 550° C. for 5 hrs
- temperatureThe mixed powder was heat
- additiontreated at a temperature of 500° C. for 1 hr
- temperatureThe mixed powder which was heat
- additiontreated
Sources & evidence
- ORD record
- ord-14129eeded624d33ba145c217fcc2174
- Source dataset
- uspto-grants-1998_04
- Patent number
- US05739742
Reaction notes
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