METHOD AND DEVICE FOR OBTAINING HIGH-MODULE LIQUID GLASS Russian patent published in 2017 - IPC C01B33/32 

FIELD: chemistry.

SUBSTANCE: invention relates to the technology for obtaining high-module liquid glass (HMLG), which can be used as a binder in zinc-silicate formulations (paints, primers) for corrosion protection of steel structures during their contact with the atmosphere, soil, marine and fresh water, oil and oil products, in the range of acid-alkaline environments with pH ranging from 4 to 12. High-module liquid glass (m=3.8-4.5, density 1.18-1.22 g/cm³) is produced by hydrothermal processing of slurry of fine silica (10-100)⋅10^-6 m and caustic alkali in a stoichiometric ratio of initial components with a simultaneous hydrodynamic cavitation treatment of the solution. Glass is produced in the device in the form of a cylindrical vessel, the bottom of which is made with a "jacket" with a heat carrier and heating elements containing a circulating system for mixing the solution. The circulation system comprises an electric motor mounted on the device cover and connected to a stirrer(s), and hydrocavitrone attached to the side wall of the vessel is built in to create the cavitation zone.

EFFECT: invention allows to reduce melting high-module liquid glass, to reduce the energy costs with improved physico-chemical characteristics of high-module liquid glass, as a binder, and zinc-silicate coatings on it.

2 cl, 2 dwg, 2 tbl