Process using melt accelerator for the conversion of solid waste substances into glass
June 23, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3397972 3632335 Method for the manufacture of glass Method and apparatus for converting hazardous material to a relatively harmless condition Method for preparing molten glass Hazardous waste removal method and apparatus Purification of effluent gases Aqueous waste vitrification process and apparatus Electrostatic particle dispersion for fluid mixture separation and chemical conversion Method and device for preheating raw materials for glass production, particularly a cullet mixture InventorsAssigneeApplicationNo. 370593 filed on 06/23/1989US Classes:65/134.3, Melt accelerator or color modifier utilized (e.g., fining agent, etc.)65/27, Repairing or cleaning of apparatus; or batch dust prevention or control65/134.6, Exhaust or top gas treated or recycled65/135.7, With submerged electrodes65/136.4, By cooling molten glass422/168, Waste gas purifier501/155Composed of waste materialExaminersPrimary: Lindsay, Robert L.Attorney, Agent or FirmInternational ClassC03B 005/04Foreign Application Priority Data1988-12-13 DEAbstractWaste substance such as incineration ash is mixed with cullet and alkaline earth salt to form a mixed batch which is added to a glass melt heated solely by electrodes, producing an exhaust gas which is introduced into the batch thereby cooling the gas to produce condensation products. The alkaline earth salt reacts with alkali in the gas and the condensation products to produce a gall layer of alkali salts and alkaline earth salts which serve as a melt accelerator and are readily removed when accumulated. According to a further step the gas is purified by separating dust therefrom and introducing it into the batch as a slurry. | |
