Abstract: The invention relates to a glass production method comprising charging a glass furnace with solid-state raw materials, said raw materials comprising granular glassy sodium silicate and having a moisture content of less than 1%, preferably 0%, by weight, and powdered calcium oxide.

Abstract: A colorless soda-lime glass composition comprising by weight from 68 to 78% SiO2, from 8 to 18% Na2O, from 0 to 10% K2O, from 7 to 12% CaO, from 0 to 10% MgO, from 0 to 10% ZnO, from 0 to 10% BaO, from 0 to 3% Al2O3, from 0 to 1% B2O3, from 0 to 1% SrO, less than 0.078% total sulfur expressed in the form of SO3, at most 0.12% total cerium expressed in the form of CeO2, from 50 to 1200 ppm total iron expressed in the form of Fe2O3, without the intentional addition of Mo, As, Sn and Sb species, and with a redox lower than 45.

Abstract: Method for manufacturing glass, comprising preparing a mixture of glass raw materials for a glassworks furnace, wherein water, sand and sodium carbonate are mixed in mass proportions of between 0 and 5%, 40 and 65%, and more than 0 and no more than 25% respectively, and, within a time of less than 10 minutes, preferably simultaneously, calcium oxide is added in a mass proportion of between 1 and 20% of the total, the calcium oxide has a granulometry such that more than 97% by mass does not pass through a sieve of 0.125 mm, more than 96% by mass does not pass through a sieve of 0.5 mm, preferably more than 95% by mass does not pass through a sieve of 1 mm.

Abstract: The invention relates to a glass production method comprising the production of a glass precursor mixture for a glass furnace, in which water, sand and sodium carbonate are mixed in weight proportions of between 0 and 5%, 40 and 65%, and greater than 0 and at most 25% respectively, and, after at least 10 minutes, calcium oxide is added in a weight proportion of between 1 and 20% of the total. The invention relates to a method for producing glass using a mixture containing, in particular, calcium oxide, and a glass melting furnace, said method and furnace using a burner with a flame directed at the glass batch.

Abstract: Installation including an industrial glass furnace (1) including a tank (2) for molten glass (3), a combustion heating chamber (4) situated above the tank (2), and a duct for evacuation of flue gases in communication with said heating chamber (4), and a stone furnace including a firing zone (21) for stone to be fired, the flue gas evacuation duct including a flue gas outlet that is connected to the firing zone (21) of stone to be fired and supplying the firing zone (21) of stone to be fired with flue gases at high temperature.

Abstract: The invention relates to a glass production method comprising charging a glass furnace with solid-state raw materials, said raw materials comprising granular glassy sodium silicate and having a moisture content of less than 1%, preferably 0%, by weight, and powdered calcium oxide.

Abstract: The invention relates to a glass production method comprising the production of a glass precursor mixture for a glass furnace, in which water, sand and sodium carbonate are mixed in weight proportions of between 0 and 5%, 40 and 65%, and greater than 0 and at most 25% respectively, and, after at least 10 minutes, calcium oxide is added in a weight proportion of between 1 and 20% of the total. The invention relates to a method for producing glass using a mixture containing, in particular, calcium oxide, and a glass melting furnace, said method and furnace using a burner with a flame directed at the glass batch.

Abstract: Installation including an industrial glass furnace (1) including a tank (2) for molten glass (3), a combustion heating chamber (4) situated above the tank (2), and a duct for evacuation of flue gases in communication with said heating chamber (4), and a stone furnace including a firing zone (21) for stone to be fired, the flue gas evacuation duct including a flue gas outlet that is connected to the firing zone (21) of stone to be fired and supplying the firing zone (21) of stone to be fired with flue gases at high temperature.