Method for separating and purifying C* by using simulated moving bed chromatography

Abstract

The invention discloses a method for separating and purifying C60 by using simulated moving bed chromatography so as to improve the purity and the yield of C60 products. The method comprises the following steps: carbon dust obtained through arc discharge is extracted via toluene to obtain coarse fullerene as the raw material; the methanol / toluene mixed solvent is taken as a mobile phase, the purification is performed through a simulated moving bed, and the purification process includes selection of chromatographic packing material and the mobile phase, preparation of sample solution, preparation of the mobile phase and parameter selection of the simulated moving bed chromatography; then the residual liquid and the liquid extract of the simulated moving bed product are concentrated without liquid respectively through a thin-film rotary vaporator and are dried in a vacuum drying oven to be at constant weight after being eluted with toluene; and finally, the C60 finished product with the purity of 99 percent is obtained through detection by an HPLC method. The invention has high concentration ratio of the separated and purified C60, saves a great amount of mobile phases, can realize the large-scale continuous production and greatly reduces the production cost.

Description

technical field [0001] The invention relates to a method for separating pure carbon molecules of fullerenes, in particular to adopting simulated moving bed chromatography technology to separate and purify C 60 Methods. Background technique [0002] Carbon fullerenes are new pure carbon molecules discovered in the 1980s. Through the research on carbon fullerene and its derivatives, it is found that carbon fullerene and its derivatives have good effects in many aspects such as electronic photosensitive devices, superconductivity, luminescent materials, molecular magnets, catalysis, and biomedicine. Application prospect. Carbon fullerenes and their homologues have been called "the pioneers of materials in the 21st century". To carry out research on the development and application of carbonfullerenes and their derivatives, it is necessary to obtain a large amount of high-purity C 60 . [0003] Currently getting a C 60 Commonly used separation methods include neutral alumin...

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Problems solved by technology

However, for the fullerene C 60 The simulated moving bed chromatographic separation method still has no public reports

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