particles having the smallest size (20-100 nm).
№3/2021 year.
Technical science and innovation
30
Thus, from the man-made waste of copper-smelting production using a fairly simple and
economical method, at low fluorination temperatures and using one reagent - ammonium
fluoride (bifluoride). can be synthesized highly dispersed powders of amorphous silicon dioxide,
while most of the methods used for this require the use of high temperatures, a much larger set of
reagents and a long technological process.
CONCLUSION.
The results obtained can be recommended for use in various industries
indicated at the beginning of the article, as well as in the creation of new nanocomposite
materials and coatings, including polymeric ones, in the synthesis of which SiO
2
nanopowders
are used as fillers.
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