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| Number | Title | Issue Date |
| 7073353 | Production of mineral wool The invention relates to a method for producing mineral wool, whereby a cracking catalyst having an aluminum oxide content of at least 35% by weight is used as a base material or aggregate. Said catalyst materials produce waste products which are difficult to elimin... | 07/11/2006 |
| 6074967 | Production of rock wool A method of processing material for use in production of rock wool, comprises providing the material in finely divided form; mixing the finely divided material with a fibrous binding agent; and forming the mixture into solid blocks. The resulting blocks (... | 06/13/2000 |
| 5637127 | Plasma vitrification of waste materials This invention provides a process wherein hazardous or radioactive wastes in the form of liquids, slurries, or finely divided solids are mixed with finely divided glassformers (silica, alumina, soda, etc.) and injected directly into the plume of a non-tra... | 06/10/1997 |
| 5472917 | Raw material briquette for mineral wool production and process for its preparation and its use The invention concerns a raw material briquette for mineral wool production containing a mineral raw material as well as a binder therefor. The invention is characterized in that the briquette, as the binder, contains slag which has been activated with an... | 12/05/1995 |
| 5100840 | Method of preparing a briquette batch A briquette batch is prepared from a mixture of glass raw materials containing not only sodium hydroxide as a binder, but also calcined plaster.... | 03/31/1992 |
| 5024822 | Stabilization of fluorides of spent potlining by chemical dispersion A process for treating spent potlining from the electrolytic smelting of aluminum in cryolite includes incinerating the potlining to combust carbonaceous material to form an ash at a temperature low enough to maintain low fluorine vapor pressures, admixin... | 06/18/1991 |
| 5004706 | Producing molten glass and batch components therefor A method of producing molten glass wherein silica is heated with a batch component comprising a sodium alkaline earth silicate which includes a major portion of the sodium in the resultant molten glass. There is also disclosed a batch component for use in... | 04/02/1991 |
| 4956158 | Stabilization of fluorides of spent potlining by chemical dispersion The present invention provides a process for treating spent potlining from the electrolytic smelting of aluminum in cryolite including burning the spent potlining to form an ash, mixing with a siliceous material either before or after the ash-forming step... | 09/11/1990 |
| 4882303 | Modified steel slag and method of manufacturing the same A steel slag or iron slag which is a by-product generated at the time of steel or iron metallurgy and a method of manufacturing the same are disclosed. This slag is characterized in that it contains at least 0.15 wt % of boron component in the form of B | 11/21/1989 |
| 4818289 | Method for utilizing slag from metal production The present invention relates to a method for utilizing slag from metal production, particularly the silicate slag with a high iron oxide content resulting from copper or nickel proceses, in the production of heat-resistant, fire-resistant and/or alkali-r... | 04/04/1989 |
| 4818290 | Method for utilizing slag from ferroalloy production The invention relates to a method for utilizing slag from ferroalloy production in manufacturing heat-resistant, fire-resistant and/or alkali-resistant fiber materials, when the original slag is based on aluminum oxide and silicon oxide. According to the ... | 04/04/1989 |
| 4778523 | Process for using steelmaking slag A process for making a binder from steelmaking slag. About 5-30 wt. % of a reforming agent selected from the group consisting of silicate rock, mineral, calamine, glass waste, foundry waste sand, waste brick, red mud, volcanic spouting matter, blast furna... | 10/18/1988 |
| 4720295 | Controlled process for making a chemically homogeneous melt for producing mineral wool insulation A process for making a homogeneous melt for producing mineral wool insulation. This insulating material is made from waste products namely, bottom ash, cement kiln dust, slag, and waste from mineral wool production. These materials, along with a binder, a... | 01/19/1988 |
| 4617045 | Controlled process for making a chemically homogeneous melt for producing mineral wool insulation A process for making a homogeneous melt for producing mineral wool insulation. This insulating material is made from waste products namely, bottom ash, cement kiln dust, slag, and waste from mineral wool production. These materials, along with a binder, a... | 10/14/1986 |
| 4518432 | Slag briquette The present invention relates to the steel industry and involves methods for the use of slag in forming mineral wool.... | 05/21/1985 |
| 4395505 | Ascension pipe and ascension pipe cap sealers for by-product coke ovens A water-based paste which is curable to a flowing glass which is made generally from boric acid, silica flour, or diatomite silica. Generally, silica flour is added for pipe sealer or diatomite-type silica for cap sealers. Optional additives are latex and... | 07/26/1983 |
| 4363878 | Alkali- and heat-resistant inorganic fiber The inorganic fiber of this invention comprising as major constituents (provided that the total amount of CaO, Fe2 O3, FeO and MnO is about 20% by weight) is excellent in alkali- and heat-resistances and is useful as a replacement of asbe... | 12/14/1982 |
| 4090882 | Glassy calcium silicate fibers made from phosphorus slag In a building material comprising an inorganic binder selected from the group consisting of Portland cement, alumina cement, calcium silicate, lime and gypsum, structurally reinforced with glass fibers, the improvement which comprises employing as said gl... | 05/23/1978 |
| 4087285 | Method for strengthening vitreous products and composition boards A method for the strengthening of glasses, glazes, cement, gypsum board, wood fiber board, mineral fiber board, lime or gypsum by adding fly or filter dust to the starting material after which the mixture is heated or not heated depending upon the product... | 05/02/1978 |
