Method for preparing starch-based carbon microsphere
A carbon microsphere and starch-based technology, which is applied in the field of preparation of starch-based carbon microspheres, can solve the problems of complex process, strict equipment requirements, inability to meet, etc., and achieve the effects of simple production process, low price and wide sources.
Inactive Publication Date: 2008-05-21
TIANJIN UNIV
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Abstract
The invention discloses a method used for preparing starch-based carbon microsphere, which pertains to the preparation technique of carbon microsphere. The procedure of the method comprises that cereal starch, tuber starch, bean starch and fruit starch of bananas and plantain are used as raw materials with a particle diameter of 2 to 120 micron; the raw materials are put into a heating furnace, heated to 62 to 300 DEG C at a certain heating rate in oxidizing atmosphere (for example, air, oxygen, ozone, etc.) and go through oxidation treatment under constant temperature for 2 to 72 hours. The starch after oxidation is put into a carbonization furnace, heated to 600 DEG C to 3000 DEG C at a certain heating rate under the protection of inert gas, treated for 0.5 to 48 hours at a constant temperature and then cooled to indoor temperature, and the starch-based carbon microsphere which keep original starch particle shape is obtained. The invention has the advantages of reproducible raw materials, wide source, low price, simple preparation process and low production cost, and being easy for large-scale production.
Technology Topic
CarbonizationHeating furnace +11
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PUM
Property | Measurement | Unit |
The average particle size | 15.0 | µm |
Specific surface area | 350.3 | m²/g |
True density | 1.591 | g/cm³ |
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