Abstract: The present invention relates to an aqua blue glass composition having a base composition of a soda-lime-silica glass having as main coloring agents total iron, expressed as Fe2O3 in the range of 0.30 to 0.60% by weight with a ratio of ferrous (redox) in the range of 20 to 30; FeO in the range of 0.06 to 0.18% by weight; TiO2 in the range of 0.025 to 1.0% by weight; Co3O4 expressed in the range of 5 to 30% ppm; Se expressed in the range of 0.1 to 10 ppm; CuO in the range of 0 to 400 ppm; and Cr2O3 in the range of 10 to 20 ppm. The glass provides light transmittance, illuminant “A”, greater than 50%, a dominant wavelength (?) of 487 nm to 498 nm; a solar energy transmittance of less than or equal to 64.4%; an ultraviolet solar transmittance no more than 51.6%; and an excitation purity less than 12 for glass thicknesses from 4 to 12 mm.

Abstract: The present invention provides an UV absorbent green solar control glass with low UV transmittance composition having a soda-lime-silica glass composition, wherein the coloring compounds comprises in weight percentage: from 0.50 to 1.30% of total iron expressed as Fe2O3; from 0.12 to 0.45% of FeO expressed as Fe2O3; from about 0.04 to 1.8 wt. % TiO2; about 0.20 to 2.0% wt CeO2; about 0.0004 to 0.0015 wt. % CuO; and about 0.010 to 0.10% C. The glass composition having a redox value (FeO/Total Fe2O3 from 10 to 35%.

Abstract: The present invention relates to an aqua blue glass composition having a base composition of a soda-lime-silica glass having as main coloring agents total iron, expressed as Fe2O3 in the range of 0.30 to 0.60% by weight with a ratio of ferrous (redox) in the range of 20 to 30; FeO in the range of 0.06 to 0.18% by weight; TiO2 in the range of 0.025 to 1.0% by weight; CO3O4 expressed in the range of 5 to 30% ppm; Se expressed in the range of 0.1 to 10 ppm; CuO in the range of 0 to 400 ppm; and Cr2O3 in the range of 10 to 20 ppm. The glass provides light transmittance, illuminant “A”, greater than 50%, a dominant wavelength (i) of 487 nm to 498 nm; a solar energy transmittance of less than or equal to 64.4%; an ultraviolet solar transmittance no more than 51.6%; and an excitation purity less than 12 for glass thicknesses from 4 to 12 mm.

Abstract: The present invention relates to a neutral grey glass composition which has a basic composition containing the following main coloring agents: 0.40 to 0.80% of Fe2O3; 0.05 to 2.0% of TiO2; 0.2 to 2.5% of Er2O3; 20 to 200 ppm of CuO; 0.08% to 0 0.1% charcoal; and 15% to 50% of ferrous (redox), in which the glass has light transmission “A” greater than 65%, solar transmission (TS) <55%, and ultraviolet transmission <40%, having color values a*=?4 to 3 and b*=4 to ?2.

Abstract: The present invention relates to a neutral grey glass composition which has a basic composition containing the following main coloring agents: 0.40 to 0.80% of Fe2O3; 0.05 to 2.0% of TiO2; 0.2 to 2.5% of Er2O3; 20 to 200 ppm of CuO; 0.08% to 0 0.1% charcoal; and 15% to 50% of ferrous (redox), in which the glass has light transmission “A” greater than 65%, solar transmission (TS) <55%, and ultraviolet transmission <40%, having color values a*=?4 to 3 and b*=4 to ?2.

Abstract: The present invention provides a glass composition having a base glass composition, comprising, in weight percentage, from about 0.005 to about 0.08% wt of ferric oxide, from 0.00002 to about 0.0004% wt of Se, from about 0.00003 to about 0.0010% wt of Co3O4, from 0 to about 0.01% wt of CuO, from about 0 to about 0.6 of CeO2, from 0.02 to about 1 of TiO2, and from about 0 to about 2 of NaNO3. The glass having a visible light transmission of at least 87%; a ultraviolet radiation transmittance less than 85%; and a solar direct transmittance of no more than 90%.

Abstract: The present invention provides a dark green colored glass composition having a soda-lime-silica glass composition, wherein the coloring compounds comprises in weight percentage: from 0.71 to 1.50% of total iron expressed as Fe2O3; from 22 to 30% of ferrous-ferric ratio and from 0.15 to 0.50% of expressed as FeO; from 0.10 to 0.20% of SO3 without affecting the refining properties and ability of the SO3 to eliminate bubbles; about 0 to 1.0 wt. % TiO2; about 0.0004 to 0.03 wt. % Cr2O3; and also 0.0004 to 0.015 wt. % CuO.

Abstract: The present invention provides a dark green colored glass composition having a soda-lime-silica glass composition, wherein the coloring compounds comprises in weight percentage: from 0.71 to 1.50% of total iron expressed as Fe2O3; from 22 to 30% of ferrous-ferric ratio and from 0.15 to 0.50% of expressed as FeO; from 0.10 to 0.20% of SO3 without affecting the refining properties and ability of the SO3 to eliminate bubbles; about 0 to 1.0 wt. % TiO2; about 0.0004 to 0.03 wt. % Cr2O3; and also 0.0004 to 0.015 wt. % CuO.

Abstract: The is a colorless glass composition having a base glass composition, comprising, in weight percentage, from about 0.005 to about 0.08% wt of ferric oxide, from 0.00002 to about 0.0004% wt of Se, from about 0.00003 to about 0.0010% wt of Co3O4, from 0 to about 0.01% wt of CuO, from about 0 to about 0.6 of CeO2, from 0.02 to about 1 of TiO2, and from about 0 to about 2 of NaNO3. The glass having a visible light transmission of at least 87%; a ultraviolet radiation transmittance less than 85%; and a solar direct transmittance of no more than 90%.

Abstract: The present invention is related to a method for the combustion of pulverized fuel as a heating source for melting raw materials for producing glass. The method including the steps of, feeding a regulated controlled flow of a mixture of pulverized fuel and air or gas under pressure for pneumatic transport in at least one distribution means; discharging the mixture of pulverized fuel and air or gas from feeding means toward at least one of said distribution means; regulating in a controlled manner the pulverized fuel-air or gas mixture from the distribution means to each of a plurality of burners in a glass melting region of a glass melting furnace; burning the pulverized fuel by means of the burners in the glass melting region of said glass melting furnace while providing a combustion flame with high thermal efficiency to carry out a controlled heating for melting the glass; and, counteracting erosive and abrasive effects of the pulverized fuel in the glass melting furnace by means of refractory materials.

Abstract: The present invention is referred to a method and an apparatus for feeding a pulverized material. The apparatus comprises fuel feeding means to supply pulverized fuel. Flexible means are coupled between the fuel feeding means and dosing means for the filling of the dosing means. The dosing means are closed and pressurized once that the dosing means have been filled. The pulverized material is discharged from the dosing means while controlling the pressurization during the discharge, in order to provide a continuous and constant discharge of the pulverized fuel. The apparatus includes means for detecting a minimum level or weight of pulverized fuel in the dosing means, and means for depressurizing the dosing means once that the minimum level of the pulverized fuel has been reached.

Abstract: A method and system feed and burn pulverized fuel, such as petroleum coke, in a glass melting furnace having burners associated with sealed regenerative chambers which act as heat exchangers. The system supplies the pulverized fuel for melting glass raw materials. The emissions of flue gases produced by the combustion process of the fuel in the furnace are controlled in order to maintain clean the flue gases and for reducing the emission of impurities from the fuel such as SOx, NOx, and particulates. The regenerative chambers are manufactured with selected refractories such as magnesium, zircon-silica-alumina, or magnesia and zirconium-silicate, for counteracting the erosive and corrosive effects produced by the combustion process of the fuel in the glass melting chamber. A burner feeds the petroleum coke and simultaneously mixes a primary air and pulverized fuel-air mixture for the burning of the pulverized fuel.

Abstract: A method and system for feeding and burning pulverized fuel, such as petroleum coke, in a glass melting furnace, which includes a glass melting and a plurality of burners associated with a pair of sealed regenerative chambers disposed side-by-side which act as heat exchangers, the burners are arranged in a series of ports that are associated with the glass melting region of the furnace. The system includes means for supplying the pulverized fuel by each one of the burners for melting glass raw materials. The emissions of flue gases produced by the combustion process of the fuel in the furnace are controlled in order to maintain clean the flue gases and for reducing the emission of impurities from the fuel such as SOx, NOx and particulates.

Abstract: A method and system for feeding and burning pulverized fuel, such as petroleum coke, in a glass melting furnace, which includes a glass melting and a plurality of burners associated with a pair of sealed regenerative chambers disposed side-by-side which act as heat exchangers, the burners are arranged in a series of ports that are associated with the glass melting region of the furnace. The system includes means for supplying the pulverized fuel by each one of the burners for melting glass raw materials. The emissions of flue gases produced by the combustion process of the fuel in the furnace are controlled in order to maintain clean the flue gases and for reducing the emission of impurities from the fuel such as SOx, NOx and particulates.

Abstract: An apparatus and method are provided for feeding a pulverized material which includes a first storage container for receiving and for discharging a flow of the pulverized material. The apparatus includes a separation chamber attached to the first storage container, which is alternately filled up or emptied out with the pulverized material. A second storage container is connected with an outlet of the separation chamber, for alternately filling the second storage container in accordance with a predetermined storage amount of pulverized material.

Abstract: A method and system for feeding and burning pulverized fuel, such as petroleum coke, in a glass melting furnace, which includes a glass melting and a plurality of burners associated with a pair of sealed regenerative chambers disposed side-by-side which act as heat exchangers, the burners are arranged in a series of ports that are associated with the glass melting region of the furnace. The system includes means for supplying the pulverized fuel by each one of the burners for melting glass raw materials. The emissions of flue gases produced by the combustion process of the fuel in the furnace are controlled in order to maintain clean the flue gases and for reducing the emission of impurities from the fuel such as SOx, NOx and particulates.

Abstract: An apparatus and method are provided for feeding a pulverized material which includes a first storage container for receiving and for discharging a flow of the pulverized material. The apparatus includes a separation chamber attached to the first storage container, which is alternately fill up or to empty out with the pulverized material. A second storage container is connected with an outlet of the separation chamber, for alternately filling the second storage container in accordance to a predetermined storage amount of pulverized material. Discharging means are attached to an outlet of the second storage container for continuously controlling the discharge of the pulverized material. Conveying means are arranged with the discharging means for conveying the material discharged.

Abstract: A method and system for feeding and burning pulverized fuel, such as petroleum coke, in a glass melting furnace, which includes a glass melting and a plurality of burners associated with a pair of sealed regenerative chambers disposed side-by-side which act as heat exchangers, the burners are arranged in a series of ports that are associated with the glass melting region of the furnace. The system includes means for supplying the pulverized fuel by each one of the burners for melting glass raw materials. The emissions of flue gases produced by the combustion process of the fuel in the furnace are controlled in order to maintain clean the flue gases and for reducing the emission of impurities from the fuel such as SOx, NOx and particulates.

Abstract: The invention is a solar control glass having a base glass composition, and colorants consisting essentially of from about 0.40 to 0.93 wt. % Fe2O3; about 0 to 0.30 wt. % TiO2; and about 0.01 to 0.03 wt. % Cr2O3. The glass having a light transmission using “A” of at least 70%; a reduced ultraviolet radiation transmittance of less than 35%; a direct solar heat transmittance of less than 45%; a dominant wavelength below 545 nanometers; and a purity of less than 7%.

Abstract: A neutral gray soda-lime-silica glass having a low light transmission (less than 20%), which reduces the transmission of solar energy, such as the transmission of near infrared radiation (less than 14%) and, in a greater degree, the transmission of ultraviolet radiation (less than 12%), comprising the following components in weight percentage:______________________________________ Fe.sub.2 O.sub.3 from 1.20 to 2.0% FeO from 18 to 28% (Reduction Percentage). Co.sub.3 O.sub.4 from 0.020 to 0.030% Se from 0.0025 to 0.010% CuO from 0.0050 to 0.050% ______________________________________This glass avoids the use of the coloring compounds such as the nickel, chromium and manganese.