Способ получения грануллированного гипса: патент на изобретение

Translated title of the contribution: METHOD TO PRODUCE GRANULATED GYPSUM: patent of invention

Василий Александрович Низов (Inventor), Максим Сергеевич Киселев (Inventor)

Research output: Patent

Abstract

FIELD: construction.
SUBSTANCE: production of granulated gypsum from acid wastes of hydrogen fluoride production, includes neutralisation of the specified wastes and granulation, as a neutralising agent they use carbonates of alkaline metals, the technological process is carried out in the pelletization mode in contact with aqueous solution, with subsequent calibration of finished product by size, grinding and recycling of minus fractions.
EFFECT: increased speed of acid fluoride hydration, increased initial strength of granules and provision of stable mode of granulation.
Translated title of the contributionMETHOD TO PRODUCE GRANULATED GYPSUM: patent of invention
Original languageRussian
Patent number2567063
IPCC04B 11/06,C01F 11/46
Filing date01/07/2014
Publication statusPublished - 27 Oct 2015

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