Technology for Manufacture of Pure Fullerenes C_(60), C_(70) and a Concentrate of Higher Fullerenes

摘要

An integrated technology for manufacture of fullerenes was developed. It includes the following stages: synthesis of a fullerene black, extraction of a mixture of fullerenes from the black, preliminary separation of the mixture into concentrates enriched in C_(60) and C_(70) fullerenes, and production of C_(60) and C_(70) fullerenes of purity exceeding 99.5 and 98.0 wt %, respectively, from the concentrates.