Preparation method of biomass-based nano silicon dioxide with high specific surface area

The invention provides a preparation method of biomass-based silicon dioxide with a high specific surface area, and belongs to the technical field of high-quality utilization of biomass. Carbonized rice husks are used as a silicon source, a multifunctional mixed template dispersing agent and an envi...

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Bibliographic Details
Main Authors ZHANG LONG, TANG BAOYU, WEI CHAO
Format Patent
LanguageChinese
English
Published 08.01.2021
Subjects
CHEMISTRY
COMPOUNDS THEREOF
HUMAN NECESSITIES
HYGIENE
INORGANIC CHEMISTRY
MEDICAL OR VETERINARY SCIENCE
METALLURGY
NON-METALLIC ELEMENTS
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS
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Summary:The invention provides a preparation method of biomass-based silicon dioxide with a high specific surface area, and belongs to the technical field of high-quality utilization of biomass. Carbonized rice husks are used as a silicon source, a multifunctional mixed template dispersing agent and an environment-friendly precipitant are adopted, biomass-based silicon dioxide with a high specific surfacearea is prepared through an improved chemical precipitation method, and the yield of silicon dioxide reaches 99.3% under proper reaction conditions. The specific surface area of the obtained silicondioxide is as high as 1233m /g, equipment and operation used by the method are simple, process waste liquid is recycled, the production process is environmentally friendly, and the obtained biomass-based silicon dioxide with a high specific surface area can be applied to the high-end application fields of biomedical materials, cosmetic preparation and the like. And a new way is provided for high-quality utilization of the
Bibliography:Application Number: CN202011013766