MUMBAI, India, July 31 -- Intellectual Property India has published a patent application (202647087684 A) filed by Solvay Sa on July 17, 2026, for Process For Producing Sodium Carbonate Or Sodium Bicarbonate.
Inventors include Fauvet, Remy; Galasco, Alberto; Criado, Claude; Neto, Jeremy; and Toussaint, Nancy.
The application for the patent was published on July 24, 2026, under issue no. 30/2026.
Abstract: A method for the manufacture of sodium carbonate or sodium bicarbonate, wherein said method comprises a limestone calcining step in a vertical shaft limekiln, to produce lime (CaO) and a gas comprising carbon dioxide (CO2), using a limestone and a carbonaceous combustible, wherein said carbonaceous combustible comprises at least partly a biochar, compacted into briquettes, using one or several inorganic or organic binding agents, and wherein said briquettes having a particle size distribution so that: - at most 20% in weight of the briquettes are of size of more than 90 mm, - and at most 20% in weight of the briquettes are of size of less than 25 mm characterized in that: - the mass amount of the biochar reported to the briquette mass is at least (15) wt. % dry; - the briquettes comprise preferably at most 50 wt.% volatile matter; - the amount of the binding agent(s) and the compacting pressure are adjusted so that less than 2% by weight of briquette fines under (5) mm are generated by a fall of (6) meters-high of briquettes, dropped individually and quantified as a mean value measured on a sample of at least (5) briquettes from said carbonaceous combustible.
Disclaimer: Curated by HT Syndication.
