Chemistry of hydrocarbon compounds – Alicyclic compound synthesis – Adamantane or derivative
Reexamination Certificate
2005-01-18
2005-01-18
Wood, Elizabeth D. (Department: 1755)
Chemistry of hydrocarbon compounds
Alicyclic compound synthesis
Adamantane or derivative
C585S016000, C585S021000, C585S800000, C585S802000, C585S803000, C117S068000, C117S069000, C117S070000
Reexamination Certificate
active
06844477
ABSTRACT:
Disclosed are processes for the recovery and purification of higher diamondoids from a hydrocarbonaceous feedstock. Specifically disclosed is a multi-step recovery process for obtaining diamondoid compositions enhanced in tetramantane components and higher diamondoid components. Also disclosed are compositions comprising at least about 10 weight percent of non-ionized tetramantane components and higher diamondoid components and at least about 0.5 weight percent of non-ionized pentamantane components and higher diamondoid components based on the total weight of diamondoid components present.
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Carlson Robert M.
Dahl Jeremy E.
Chevron U.S.A. Inc.
Wood Elizabeth D.
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