C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
C01B 31/02 (2006.01)
Patent
CA 2076314
HOE 91/H 016 K Process for the preparation of fullerene Abstract In the process for the preparation of a C60/C70 mixture, known as fullerene, by vaporization of carbon under pres- sures of 0,05 to 3 bar, condensation of the gaseous carbon on cooled zones with the formation of a fullerene/carbon black mixture and separation of the fullerene from this mixture, the vaporization and condensation are carried out in oxygen-containing gases from the group comprising CO, CO2 and O2 or mixtures thereof.
Dorn Friedrich-Wilhelm
Sachse Dieter
Fetherstonhaugh & Co.
Hoechst Aktiengesellschaft
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