A Biogenic Silica Synthesis Method

T. P. Shcherbakova^a^, * and I. N. Vaseneva^a

^aInstitute of Chemistry, Komi Science Center, Ural Branch, Russian Academy of Sciences, Syktyvkar, 167982 Russia

Correspondence to: *e-mail: Sher.taty@mail.ru

Received 30 October, 2018

Abstract—Silica separation and isolation methods providing energy conservation, a decrease in losses and waste of plant raw materials, and the environmental safety of the processes are studied. Using the oxidative ashing and alkaline extraction methods, biogenic silica (SiO₂) samples with a target component content of 76.4–99.9% are prepared. The qualitative elemental composition and structural characteristics of the resulting materials are determined by physicochemical methods.

Keywords: silica, polysaccharides, lignin, complexes, ashing method, extraction, precipitation method

DOI: 10.1134/S0040579520020165