Intellectual Property India Publishes Patent Application for Furnace Process For The Preparation Of Silicate And Precipitated Silica From Spent Foundry Sand, And Silicate And Precipitated Silica Obtainable Thereby

MUMBAI, India, July 31 -- Intellectual Property India has published a patent application (202647088222 A) filed by Rhodia Operations on July 20, 2026, for Furnace Process For The Preparation Of Silicate And Precipitated Silica From Spent Foundry Sand, And Silicate And Precipitated Silica Obtainable Thereby.

Inventors include Keita, Camille; Feral-Martin, Cdric; and Chaussee, Thomas.

The application for the patent was published on July 24, 2026, under issue no. 30/2026.

Abstract: The invention relates to a silicate and to a precipitated silica that have a high iron content and to processes especially well-suited for their preparation, starting from a spent foundry sand using a furnace route that comprises the step of melting the spent foundry sand in a furnace at high temperature in the presence of a base.

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