| Patents for C22B 9 - General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals (7,765) |
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| 09/24/1991 | CA1289333C Process for purification of solid material |
| 09/19/1991 | WO1991013714A1 Process for manufacturing metallic or ceramic materials |
| 09/19/1991 | DE4033227A1 Metallic or ceramic article prodn. - by moulding or casting film-forming material contg. metals or ceramic raw materials |
| 09/17/1991 | US5050185 Process and apparatus for measuring the instability of an arc in an electrical arc furnace for processing liquid metal |
| 09/17/1991 | US5049363 Recovery of scandium, yttrium and lanthanides from titanium ore |
| 09/05/1991 | WO1991013180A1 Production of synthetic rutile |
| 09/04/1991 | EP0445067A2 Porous ceramic article |
| 09/03/1991 | US5045511 Ceramic bodies formed from yttria stabilized zirconia-alumina |
| 09/03/1991 | US5045406 High strength, oxidation resistance, ductility |
| 09/03/1991 | US5045111 Filtration of molten ferrous metal |
| 08/29/1991 | DE4105507A1 Soft magnetic iron-nickel alloys prodn. - using electroslag melting with special slag to improve purity of alloy and magnetic permeability |
| 08/27/1991 | CA2036558A1 Ceramic bodies formed from yttria stabilized zirconia-alumina |
| 08/27/1991 | CA1287974C Filtration apparatus |
| 08/23/1991 | WO1991013182A1 Deoxidation of a refractory metal |
| 08/23/1991 | CA2075922A1 Deoxidation of a refractory metal |
| 08/22/1991 | WO1991013178A1 Method and apparatus for in-line induction heating of molten metals for supplying continuous casting devices |
| 08/22/1991 | CA2076659A1 Method and apparatus for in-line induction heating of molten metals for supplying continuous casting devices |
| 08/21/1991 | EP0442752A1 Highly purified metal material and sputtering target using the same |
| 08/21/1991 | EP0442451A2 Aluminium scrap melting |
| 08/14/1991 | EP0440711A1 Method of producing titanium |
| 08/13/1991 | CA2036076A1 Aluminum scrap melting |
| 08/10/1991 | CA2075634A1 Refractory filter |
| 08/08/1991 | DE4002876A1 Cyclone smelting process esp. for ore concentrates - using carrier gas to transport solids and enhance vortex in cyclone |
| 08/06/1991 | CA1287217C Improved metal purification process through fractured crystalisation |
| 07/31/1991 | EP0438622A1 Method and apparatus for removing arsenic, tin and antimony from crude lead. |
| 07/24/1991 | EP0438004A1 Method and device for making composite products having a metal matrix |
| 07/16/1991 | US5032177 Method and apparatus for the removal of slag from metallic melt bath in a melting furnace |
| 07/10/1991 | EP0436465A1 Refining of molten metal |
| 07/09/1991 | US5030273 Furnace-plasma arc torch-supervisory control system for recovery of free aluminum from aluminum dross |
| 07/09/1991 | CA1285773C Purifying steel |
| 07/03/1991 | EP0215121B1 Process for purification of solid material |
| 07/02/1991 | US5028491 Gamma titanium aluminum alloys modified by chromium and tantalum and method of preparation |
| 07/02/1991 | US5028036 Filter for molten ferrous metal |
| 07/02/1991 | US5028035 Apparatus for gas treatment of a liquid aluminum bath |
| 06/26/1991 | CN1052510A Special smelting process "electroslag induction refining" |
| 06/25/1991 | US5026434 Copper-iron-cobalt-titanium alloy with high mechanical and electrical characteristics and its production process |
| 06/23/1991 | CA2031009A1 Method of manufacturing a composite component |
| 06/21/1991 | CA2032572A1 Purification of metal melts |
| 06/19/1991 | EP0432545A1 Molten metal stirring device |
| 06/19/1991 | CA2032409A1 Process and apparatus for producing metal matrix composite |
| 06/18/1991 | US5024696 Apparatus and method for degassing molten metal |
| 06/12/1991 | EP0431772A1 Agent for desulphurising molten metal |
| 06/11/1991 | US5022991 Thermite coated filter |
| 06/11/1991 | US5022935 With a metal, heating to liquify deoxidant, cooling, purification of surface |
| 06/06/1991 | DE4002284A1 Abrasion resistant medium for desulphurising molten iron - consists of fine grain magnesium particles having several coatings |
| 06/05/1991 | CN2078325U Purifying plant for molten material of light aluminium alloy |
| 06/04/1991 | US5020778 Apparatus for stirring molten metal |
| 05/22/1991 | EP0428478A1 Ceramic Filterbody with indicator for preheating |
| 05/22/1991 | EP0428363A1 Apparatus for holding and refining of molten aluminium |
| 05/22/1991 | EP0428194A1 Process for treating Jarosite containing residues |
| 05/15/1991 | EP0427379A2 Method for producing titanium particles |
| 05/14/1991 | US5015288 Gas-fired aluminum melter having recirculating molten salt bath and process |
| 05/08/1991 | EP0425620A1 Process and device for smelting metals in cupola furnaces run without coke. |
| 05/07/1991 | US5013359 Oxidized with nitric acid, froth flotation |
| 05/07/1991 | CA1283779C Arrangement for use in the thermal analysis and modification of molten metal |
| 05/03/1991 | CA2028435A1 Preheat indicator |
| 05/02/1991 | EP0425102A1 Method for eluting adsorbed gold from carbon |
| 05/01/1991 | CN1051034A Ceramic bodies formed from partially stabilized zirconia |
| 04/30/1991 | US5011531 Method and apparatus for degassing molten metal utilizing RH method |
| 04/25/1991 | CA2027973A1 Method of reprocessing jarosite-containing residues |
| 04/24/1991 | EP0423423A1 Remelting apparatus for recovery of metals |
| 04/24/1991 | EP0288566B1 Induction plasma installation |
| 04/23/1991 | US5009397 Plant to be used for metallurgical treatments of metal compounds and/or metal alloys or for producing calcium carbide |
| 04/16/1991 | US5007621 Apparatus for mounting a gas washing sink in a centered manner in perforated brick |
| 04/10/1991 | EP0271578B1 Method for meltin metal in an induction plasma furnace |
| 04/03/1991 | EP0420393A1 System and method for atomizing a titanium-based material |
| 03/30/1991 | CA2026249A1 Method for eluting adsorbed gold from carbon |
| 03/27/1991 | EP0419407A2 Partially stabilized zirconia sintered body |
| 03/27/1991 | EP0419378A1 Apparatus for treating a static aluminium bath of large surface area using gases |
| 03/27/1991 | EP0419296A1 Method and apparatus for removing non-metallic inclusions from molten metal |
| 03/20/1991 | EP0417757A1 Process for producing copper fine powder |
| 03/20/1991 | EP0417296A1 Direct smelting process |
| 03/20/1991 | EP0407428A4 Electro-slag casting apparatus and method |
| 03/19/1991 | CA1281553C Electrothermal preparation and refining process of metals derived from scrap,and related installation |
| 03/12/1991 | US4999101 Preheat indicator |
| 03/12/1991 | US4999053 Method of producing an iron-, cobalt- and nickel-base alloy having low contents of sulphur, oxygen and nitrogen |
| 03/12/1991 | US4999051 System and method for atomizing a titanium-based material |
| 03/12/1991 | US4998710 Apparatus for holding and refining of molten aluminum |
| 03/08/1991 | CA2021112A1 Process for preventing contamination for high temperatures melts |
| 03/06/1991 | CA2022398A1 Remelting apparatus and method for recognition and recovery of noble metals and rare earths |
| 03/05/1991 | US4997476 Recovery of free aluminum from aluminum dross using plasma energy without use of a salt flux |
| 02/26/1991 | US4996402 Method and apparatus for continuously melting material by induction heating |
| 02/26/1991 | US4995592 Purifying molten metal |
| 02/20/1991 | EP0413496A1 Titanium alloy and method of production |
| 02/19/1991 | US4993690 Electroslag remelting plant including an ingot mold and a hood |
| 02/19/1991 | US4993689 Convertor for continuously melting scrap with tapping means |
| 02/13/1991 | CN1049188A Recovery of scandium, yttrium and lanthanides from titanium ore |
| 02/13/1991 | CN1049187A Gas injector |
| 02/12/1991 | US4993043 Device for positioning and melting electrically conductive materials without a receptacle |
| 02/12/1991 | US4991825 Gases into metallurgical vessels |
| 02/06/1991 | CN1011486B Ceramic foam filter 23 |
| 02/04/1991 | CA2022600A1 Recovery of scandium, yttrium and lanthanides from titanium ore |
| 01/23/1991 | EP0409794A1 Alloy preparation of hydrogen storage material |
| 01/23/1991 | EP0372057A4 Depressant for flotation separation of polymetallic sulphidic ores |
| 01/16/1991 | EP0408469A1 Copper-iron-cobalt-titanium alloy featuring high mechanical and electrical properties and process for the manufacture thereof |
| 01/16/1991 | EP0408383A1 Highly purified titanium material, method for preparation of it and sputtering target using it |
| 01/16/1991 | EP0408165A1 Dispersing gas into molten metal |
| 01/16/1991 | EP0407428A1 Electro-slag casting apparatus and method |
| 01/15/1991 | US4985067 Process and device for implementing hot chemical processes |
| 01/10/1991 | WO1991000158A1 Production of ingots for microcomposite manufacture by plasma melting |