Carbon nanotube purification system for removing metal ions

Abstract

The invention discloses a carbon nano tube purification system capable of removing metal ions. The carbon nano tube purification system comprises a fluid reaction bed, a heat exchanger, an acid storage tank, two grinding machines and two pressure filters, wherein acidic steam discharged by the fluid reaction bed is fed into the heat exchanger; acidic cooling liquid discharged by the heat exchanger is fed into the acid storage tank; a carbon nano tube coarse product discharged by the fluid reaction bed is fed into one pressure filter; an acidic solution discharged by the pressure filter is fed into the acid storage tank; the carbon nano tube coarse product discharged by the pressure filter is fed into the grinding machine; the carbon nano tube coarse product ground by the grinding machine passes through the other grinding machine and then is fed into the next pressure filter to obtain a carbon nano tube finished product. According to the carbon nano tube purification system, the carbon nano tube coarse product is treated by the two continuous grinding machines, so that the impurity removal effect is good, and the energy consumption is low.

Description

technical field [0001] The invention relates to a carbon nanotube purification system for removing metal ions, and belongs to the technical field of carbon nanotube production. Background technique [0002] A carbon nanotube is a tubular nanomaterial composed of carbon atoms. Tube walls containing multiple layers of carbon atoms are called multi-walled carbon nanotubes (MWNTs), and those containing a single layer of carbon atoms are called single-walled carbon nanotubes (SWNTs). Carbon nanotubes have attracted the attention of researchers for their unique structure and excellent performance since they were discovered. It has potential application prospects in new conductive / high-strength composite materials, electronic devices, and catalyst carrier materials. [0003] The preparation techniques of carbon nanotubes mainly include: arc discharge method, laser etching method, chemical vapor deposition method, solid phase pyrolysis method, flame synthesis method, glow discharg...

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Problems solved by technology

Although this patent introduces the removal of some impurities in crude carbon nanotubes, it does not introduce how to separate strong oxidizing acids and impurities in deionized water so that they can be reused, which is not conducive to industrial mass production applications

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