| Patents for C21C 7 - Treating molten ferrous alloys, e.g. steel, not covered by groups (11,430) |
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| 07/21/1981 | US4279641 Salt-coated magnesium granules |
| 07/21/1981 | CA1105255A1 Desulfurization lance for cast iron or steel |
| 07/14/1981 | US4278464 Oxidation of fuel at surface |
| 07/14/1981 | US4278240 Powder injection apparatus with sieving apparatus |
| 07/14/1981 | CA1104829A1 Treatment of iron based melts with agents containing alkaline earths by gas injection |
| 07/14/1981 | CA1104828A1 Alkaline earth carbonate desulfurizing agents |
| 07/08/1981 | EP0031552A1 Desulphurising composition and process for its production |
| 07/08/1981 | EP0031534A1 Process for producing desulfurizing agents for pig iron or steel melts |
| 07/07/1981 | US4277279 Method and apparatus for dispensing a fluidized stream of particulate material |
| 06/24/1981 | EP0030818A2 Improved method of decarburizing molten metal |
| 06/23/1981 | US4274869 Desulphurization of metals |
| 06/10/1981 | EP0030220A2 Method for adding solids to molten metal |
| 06/10/1981 | EP0030043A2 Agent in wire form for treating molten metals |
| 06/09/1981 | US4272287 Decarbonization, oxidation |
| 06/09/1981 | CA1102558A1 Reverberatory smelting of non-ferrous metal sulfide ores |
| 06/09/1981 | CA1102555A1 Process and agent for the desulphurization of iron based melts |
| 06/02/1981 | CA1102117A1 Melt processing apparatus with tiltable melt receptacle |
| 05/27/1981 | EP0029038A1 Product for the desulphurization of cast irons and steels. |
| 05/20/1981 | EP0028968A1 Process for treating a metal in a melting bath |
| 05/19/1981 | US4268305 Process for treating liquid steel intended in particular for manufacturing machine wire |
| 05/19/1981 | CA1101223A1 Inoculation article |
| 05/13/1981 | EP0028570A1 Process for refining a molten metal by oxygen injection |
| 05/13/1981 | EP0028569A1 Process for agitating a molten metal by injection of gases |
| 05/12/1981 | CA1100764A1 Method of and apparatus for making a metal product |
| 05/06/1981 | EP0027849A1 Slag-conditioning process |
| 05/05/1981 | US4265432 Degassing molten metals |
| 04/28/1981 | US4264059 Condition responsive control means for use in discharging powdered reagent into a pool of molten metal |
| 04/28/1981 | US4264057 Process and device for increasing the useful life of gas scavenging lances with porous graphite flush heads |
| 04/21/1981 | US4263043 Desulfurizing agent for injection |
| 04/14/1981 | US4261735 Desulfurization with lime of steel melt followed by injection of anon-oxidically bound calcium compound to improve morphology of inclusions |
| 04/07/1981 | US4260415 By oxidation in inert gas shroud |
| 04/07/1981 | US4260413 Powdered agent ground and coated with carbon |
| 04/07/1981 | CA1098712A1 Crystalline structure in continuously cast steel ingot |
| 03/31/1981 | CA1098321A1 Production process of stainless steel by means of a converter |
| 03/11/1981 | EP0025028A1 Ladle position for performing metallurgical treatments of steel melts |
| 03/03/1981 | US4253868 Apparatus for nitriding metal materials and ferroalloys under pressure |
| 03/03/1981 | US4253645 Molten steel droplet scatter regulation cylinder |
| 03/03/1981 | CA1096633A1 Continuous stream treatment of ductile iron |
| 02/24/1981 | CA1096203A1 Preparation of rare earth and other metal alloys containing aluminum and silicon |
| 02/24/1981 | CA1096179A1 Molten metal treatment |
| 02/24/1981 | CA1096135A1 Process for lowering the sulfur content of vanadium- carbon materials used as additions to steel |
| 02/18/1981 | EP0024054A1 Method and apparatus for the pneumatic conveying of fine-grained solids |
| 02/18/1981 | EP0023931A1 Process for making high purity steels and alloys by melting |
| 02/17/1981 | US4251271 Submerged injection of gas into liquid-pyrometallurgical bath |
| 02/17/1981 | US4251269 Monitoring decarburization by spectrum analysis |
| 02/17/1981 | US4251268 For continuous casting of small shapes |
| 02/17/1981 | CA1095732A1 Process for refining molten metal |
| 02/17/1981 | CA1095729A1 Exothermic slag-forming mixture |
| 02/17/1981 | CA1095728A1 Renitrogenation of basic-oxygen steels during decarburization |
| 02/17/1981 | CA1095708A1 Method for preheating the oxygen in an oxygen steel making process |
| 02/11/1981 | EP0023759A1 Method of recycling steel scrap |
| 02/10/1981 | US4249719 Tuyere for the injection of reaction gas |
| 02/03/1981 | US4248631 Casting powder for the continuous casting of steel and method for producing the same |
| 01/27/1981 | US4247324 Method and apparatus for introducing solid substances into liquid metals |
| 01/27/1981 | CA1094330A1 Sheathed wire feeding of alloy and inoculant materials |
| 01/20/1981 | US4246216 Method for manufacturing a gas delivery device |
| 01/20/1981 | US4246023 Method and apparatus for the refining of iron-based melts |
| 01/13/1981 | US4244562 Powder injection apparatus for injection of powder into molten metal |
| 01/07/1981 | EP0021861A1 Gas-permeable refractory block and method of making this block |
| 01/07/1981 | EP0021316A1 Method and apparatus for determining the contents of heavy metallic oxides in liquid slags |
| 01/06/1981 | CA1092835A1 Method and member for adding treating agent for molten metal |
| 01/06/1981 | CA1092830A1 Method for refining molten iron and steels |
| 01/06/1981 | CA1092829A1 Method for continuous refining of a molten iron base metal |
| 12/30/1980 | US4241904 Molten-metal treating vessel |
| 12/30/1980 | CA1092362A1 Process in the manufacture of steels containing nickel |
| 12/16/1980 | US4239192 Injection of band of aluminum into molten steel |
| 12/10/1980 | EP0020307A1 Method for introducing deoxydizing-desulphurizing substances into a mass of liquid metals without the use of gaseous carriers, and cored spiral tube therefor |
| 12/09/1980 | US4238227 Cleansing of steel by gas rinsing |
| 12/09/1980 | CA1091003A1 Method and apparatus for automatically repairing the lining of a furnace |
| 12/02/1980 | US4236931 Of a chamotte and a binder of calcium aluminate |
| 12/02/1980 | CA1090566A1 Mechanically stirred furnace and method of operation |
| 11/27/1980 | WO1980002565A1 Product for the desulphurization of cast irons and steels |
| 11/26/1980 | EP0019087A1 Desulphurising agents for pig iron and steel melts, and process for their manufacture |
| 11/26/1980 | EP0019086A2 Process for producing desulfurizing agents for pig iron or steel melts |
| 11/25/1980 | US4235627 Method and apparatus for the degassing of molten metal |
| 11/25/1980 | US4235423 Indication of levels in receptacles |
| 11/25/1980 | US4235007 Method of production of a wire-shaped composite addition material |
| 11/18/1980 | CA1089650A1 Process and device for the manufacture of quality steels |
| 11/12/1980 | EP0018633A2 Casting flux for the continuous casting of steel |
| 11/11/1980 | US4233064 Method of scavenging steel |
| 11/11/1980 | US4232854 Method of introducing powdered reagents into molten metals and apparatus for effecting same |
| 11/11/1980 | CA1089184A1 Controlling continuous casting |
| 11/04/1980 | US4231792 Chute with hazardous flame and fume control |
| 11/04/1980 | CA1088756A1 Method of desulfurizing molten ferrous metals |
| 11/04/1980 | CA1088754A1 Method for production of refined steel |
| 10/29/1980 | EP0017713A1 Particulate slagging composition for the continuous casting of steel and process for continuously casting steel with such a composition |
| 10/15/1980 | EP0017150A1 Apparatus for refining molten aluminium |
| 10/07/1980 | CA1086962A1 Feeding additives into the interior of molten metal |
| 10/07/1980 | CA1086961A1 Method and apparatus for introducing an additive material into a molten metal at a variable rate |
| 10/02/1980 | WO1980002063A1 Ladle heating system |
| 10/01/1980 | EP0016671A1 Method for the addition of a reactive metal to a molten metal bath |
| 09/30/1980 | US4225348 Lime bearing agent for use in refining of ferrous melt |
| 09/30/1980 | US4225343 Alkali or alkaline earth metal, coke or graphite, a binder |
| 09/23/1980 | US4224058 Reacting sulfur with rare earth compound to form rare earth sulfide or oxysulfide |
| 09/23/1980 | US4223873 Direct flame ladle heating method and apparatus |
| 09/23/1980 | CA1086067A1 Deoxidation of open type steels for improved formability |
| 09/17/1980 | EP0015662A1 Method for ladle treatment of molten cast iron using sheathed magnesium wire |
| 09/17/1980 | EP0015396A1 A method for increasing vessel lining life for basic oxygen furnaces |
| 09/17/1980 | EP0015335A1 Method of and apparatus for making additions of particles to molten metal |
| 09/16/1980 | US4222553 Sliding nozzle apparatus for blowing powdery treating agent |