VAPOR PHASE ISOMERIZATION OF O-CARBORANE
Abstract
An improved process for the conversion of ortho carborane to its meta and para isomers involves heating carborane vapors, admixed with an inert carrier gas in a heated tube at atmospheric pressure. This process accomplishes the isomerization rapidly in a continuous fashion, eliminating the need for the heavy pressure equipment required in previous methods. Optimum conversion of ortho to meta carborane occurred at a tube temperature of 600C, with a residence time of 0.30 to 0.48 minutes and mass flows of 0.73 to 2.98 grams/minute; the meta isomer was recovered in yields of 88 to 95%. Mixtures of meta and para isomers were formed at 700C, the yield of para isomer being about 22% under optimum conditions.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 07, 1966
- Accession Number
- AD0643009
Entities
People
- Clayton Obenland
- Stelvio Papetti
- Theodore L. Heying