Preparation method of fullerene

A fullerene and solvent technology, applied in the field of fullerene preparation, can solve the problems of increasing the cost of heat preservation and constant pressure, increasing heat preservation, constant pressure, affecting the treatment effect, etc., avoiding chemical changes, improving production efficiency, and avoiding chemical changes. Effects of dust pollution
CN102001647BActive Publication Date: 2012-08-29INST OF HIGH ENERGY PHYSICS CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
INST OF HIGH ENERGY PHYSICS CHINESE ACAD OF SCI
Publication Date
2012-08-29

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Abstract

The invention relates to a preparation method of fullerene, which comprises the following steps: carrying out discharge synthesis in a synthesis furnace, generating soot containing the fullerene, collecting into a collector for stirring and dissolution, sending into a reaction kettle for heating and stirring, then carrying out centrifugation in a centrifuge, simultaneously sending to a vacuum distillation reactor for distillation and concentration, and recycling solution after distillation; adding remaining solids after drying by distillation into the solution for dissolution, then filtering,introducing filtrate obtained by filtration into another vacuum distillation reactor for distillation and concentration; and carrying out chromatographic separation on a fullerene sample obtained by distillation and concentration and then obtaining a pure product. The method can continuously complete the technical processes of synthesis, reaction, filtration, ultrasound, distillation, liquid inlet, discharge and the like, and prepare the fullerene under the continuous and closed conditions without dust pollution and chemical pollution.
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Description

technical field

[0001] The invention relates to a preparation process of carbon materials, in particular to a preparation method of fullerene. Background technique

[0002] Usually, the preparation of fullerenes needs to be completed through multiple steps, such as the steps of synthesizing soot, the steps of fullerene extraction, and the steps of high performance liquid chromatography separation and so on. Since each step is completed in independent equipment, the operation of each step is separated, so there are problems of dust and organic solvent pollution, and the soot and extracted and separated samples are often exposed to the air, making some airborne The sensitive fullerene sample changes during the experiment, resulting in a low final yield of fullerene, and even a pure sample cannot be isolated. At the same time, since each step in the preparation process is manually operated, there are many uncertain factors, a large workload, and the test process is discontinuo...

Claims

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