FIELD: production of materials of electronic equipment, technical lubricants. SUBSTANCE: method includes adding to carbon black, during mixing, organic solvent in the form of benzine, xylol, isopropyl alcohol, etc; removal of solvent; sublimation of compact carbon black in vacuum at pressure of 102 T and heating up to 580-800 C. Relation of C60 and C70 are 88-92 wt.% and 8-11.9 wt. %, respectively. Fraction of recovered fullerens amounts to 83-96%. EFFECT: higher efficiency.
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Authors
Dates
1999-01-10—Published
1996-02-09—Filed