| Patents for C03B 5 - Melting in furnaces; Furnaces so far as specially adapted for glass manufacture (8,174) |
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| 05/08/1991 | EP0426054A1 Method of removing sulphur dioxide and if applicable nitrogen oxides and other impurities from the exhaust gas of waste incineration |
| 05/08/1991 | DE4035049A1 Nitrifying fly ash from incinerators - by heating to melt and break down harmful products followed by quenching |
| 05/08/1991 | DE4000147C1 Sewage sludge vitrification - by burning waste material above bath of molten glass for ashes in upper furnace section for carbon combustion etc. |
| 05/07/1991 | CA1283845C Burner design for melting glass batch and the like |
| 05/02/1991 | EP0258456B1 Process for manufacturing glass |
| 04/23/1991 | US5009511 Inorganic recycling process |
| 04/17/1991 | CN1050711A Ceramic welding process andlance for use in such process |
| 04/10/1991 | EP0421490A2 Method for producing molten glass |
| 04/09/1991 | US5006145 Center biased stirring for improved glass homogenization |
| 04/09/1991 | US5006144 Redox system;melting under oxidizing conditions, then reducing |
| 04/09/1991 | US5006141 Thermally efficient melting for glass making |
| 04/09/1991 | US5005635 Refractory elements for the construction of heat regenerators |
| 04/09/1991 | US5005494 Apparatus and method for high temperature disposal of hazardous waste materials |
| 04/09/1991 | US5005493 Hazardous waste multi-sectional rotary kiln incinerator |
| 04/06/1991 | CA2026944A1 Ceramic welding process and lance for use in such process |
| 04/04/1991 | WO1991004443A1 Method and apparatus for making solid waste material environmentally safe using heat |
| 04/04/1991 | DE4027679A1 Control of glass level in glass melting appts. - by weighing glass and appts. to calculate glass wt. and comparing to a preset wt. permitting controlled addn. of raw glass |
| 04/02/1991 | CA1282245C Vitrification of asbestos waste |
| 03/26/1991 | US5002910 Particulate composition for surface treatment of refractories |
| 03/26/1991 | US5002805 Process of surface treatment of refractories and coating |
| 03/21/1991 | WO1991003439A1 Zircon refractories with improved thermal shock resistance |
| 03/20/1991 | EP0417520A1 Method and apparatus for the pollution-free disposal of environment-detrimental residues |
| 03/20/1991 | EP0417107A1 Shaft furnace with a melt collecting chamber |
| 03/12/1991 | CA1281190C Vacuum refining of glassy materials with controlled foaming |
| 03/07/1991 | WO1991003435A1 The destruction and re-use of mineral wool scrap |
| 03/06/1991 | CN1011886B Glass batch feed arrangement with directional adjustability |
| 02/26/1991 | CA1280606C Ablation melting with thermal protection |
| 02/26/1991 | CA1280605C Support and drive system for rotating liquefaction vessel |
| 02/20/1991 | EP0413128A1 Ceramic orifice ring |
| 02/19/1991 | US4994099 Method for fining molten glass |
| 01/30/1991 | EP0410338A1 Melting vessel for the preparation of glass |
| 01/23/1991 | EP0408702A1 Process and device for combustion and post-combustion of residues. |
| 01/23/1991 | CN1011338B Process for melting materials capable of forming fibres |
| 01/22/1991 | US4986748 Wide range oxy-fuel burner and furnace operation |
| 01/22/1991 | CA1279191C Melting and refining of glass or the like with vacuum refining |
| 01/16/1991 | CN1048534A 玻璃熔化 Glass melting |
| 01/08/1991 | US4983202 Glass sheet heating furnace and method of using |
| 01/08/1991 | US4983198 Glass melting method and apparatus |
| 01/08/1991 | CA1278686C Apparatuses in the manufacture of mineral wool |
| 01/03/1991 | DE3920768A1 Vitrifier for waterless solid toxic waste prods. |
| 01/02/1991 | EP0405211A1 Device for the process of transforming solid, extensive dry waste products into a glaseous form |
| 01/02/1991 | EP0405124A2 Method for thermal disposal or waste material or residual material such as ashes, sludge or the like |
| 01/02/1991 | CN2068505U Durable graphite crucible for producing quartz glass |
| 01/02/1991 | CN1048208A Avoidance of nickel sulfide stones in glass melting operation |
| 01/02/1991 | CA1278428C Air cooled rotary kiln collar |
| 01/02/1991 | CA1278425C Method for reducing nitrogen oxide emissions particularly melting of glass |
| 01/01/1991 | US4981504 Process and device for melting glass |
| 12/27/1990 | EP0404144A1 Avoidance of nickel sulfide stones in a glass melting operation |
| 12/27/1990 | EP0269663B1 Method of preparing a melt for the production of mineral wool |
| 12/26/1990 | CN1048025A Fused and cast refractory products having high zirconium dioxide content |
| 12/25/1990 | US4980091 Method and device enabling molten radioactive glass to be cast into a container |
| 12/19/1990 | EP0403387A1 Fusion cast refractories with a high content of zirconia |
| 12/19/1990 | EP0403289A1 Method and apparatus for equalization of temperature in a forehearth in glass manufacture |
| 12/19/1990 | EP0403184A2 Glass melting |
| 12/19/1990 | EP0403183A2 Glass melting |
| 12/18/1990 | US4977837 Process and apparatus for reducing heavy metal toxicity in fly ash from solid waste incineration |
| 12/18/1990 | CA1277836C Glass batch preheating and liquefying with recycling of particulates |
| 12/12/1990 | CN1047663A Method and apparatus for heat processing glass batch materials |
| 12/12/1990 | CN1010775B Method and apparatus for homogenizing flat glass |
| 12/12/1990 | CN1010774B Improved glass kiln |
| 12/04/1990 | US4974666 Refractory brick assembly for a heat regenerator |
| 11/27/1990 | US4973346 Glassmelting method with reduced nox generation |
| 11/27/1990 | CA1276789C Heating vessel construction |
| 11/22/1990 | EP0398699A1 A process for the treatment of liquid materials |
| 11/15/1990 | WO1990013522A1 Method of firing glass-melting furnace |
| 11/14/1990 | EP0271557B1 Treatment of refractory linings |
| 11/13/1990 | US4969942 Glass melter exhaust duct cleaning method and apparatus |
| 11/13/1990 | US4969940 Apparatus and method for making mineral wool from coal-ash |
| 11/01/1990 | WO1990012761A1 Shaft kiln |
| 10/31/1990 | EP0394640A1 Method for making silica tubes or tubes with a high content of silicic acid with low diameter variation |
| 10/31/1990 | EP0394391A1 Process and device for processing slag and other combustion residues from waste incineration plants. |
| 10/31/1990 | DE4013314A1 Processing industrially useful residues by melting - with vapour collection as solids for further melting treatment |
| 10/31/1990 | CN1010228B Arrangment of electrodes |
| 10/30/1990 | CA1275572C Foam control method for vacuum refining of glassy materials |
| 10/24/1990 | EP0393882A2 Method and apparatus for processing molten glass |
| 10/23/1990 | US4965812 Electrode for a glass melting |
| 10/23/1990 | CA1275422C2 Soda-lime-silica glass product |
| 10/18/1990 | WO1990012760A1 Method and melting furnace for manufacturing glass |
| 10/18/1990 | CA2050933A1 Method and melting furnace for manufacturing glass |
| 10/17/1990 | CN2063939U Coal-burning crucible furnace |
| 10/17/1990 | CN1046146A Glass melting furnace for generator gas |
| 10/17/1990 | CN1010004B Combustor design for materials i.e. the melting glass charge |
| 10/17/1990 | CA2012301A1 Furnace for fining molten glass |
| 10/16/1990 | US4963731 Optical level measurement system |
| 10/11/1990 | DE3911164A1 Process for improving the heat utilisation in the glass melt, and brick and tank furnace for use in this process |
| 10/10/1990 | CN1045928A Process for purification of waste gases emitted from melting furnace |
| 10/09/1990 | US4961772 Method and apparatus for continuously melting glass and intermittently withdrawing melted glass |
| 10/02/1990 | US4960380 Method and apparatus for the reduction of solid waste material using coherent radiation |
| 10/02/1990 | CA1274873A1 Furnace bottom heating |
| 09/28/1990 | CA2013264A1 Process for the purification of waste gases emitted from a melting furnace |
| 09/26/1990 | EP0389314A1 Process and apparatus for melting materials containing mineral fibres |
| 09/20/1990 | DE3908510A1 Glass melting furnace |
| 09/18/1990 | US4957527 Combustion preheater |
| 09/09/1990 | WO1990010604A1 Method and apparatus for heat processing glass batch materials |
| 09/06/1990 | DE3904613A1 Environmentally friendly process for converting solid waste materials into glass form (vitrification) |
| 08/23/1990 | WO1990009211A1 A method of treating toxic waste |
| 08/21/1990 | US4950321 Ceramic orifice ring |
| 08/14/1990 | US4948411 Glass melting furnace for glazing environmentally hazardous wastes |
| 08/09/1990 | DE3903016A1 Batch glass melting furnace |
| 07/31/1990 | US4944785 Process using melt accelerator for the conversion of solid waste substances into glass |