| Patents for C22C 35 - Master alloys for iron or steel (563) |
|---|
| 01/19/1982 | US4311523 Titanium-boron additive alloys |
| 12/22/1981 | US4306905 Production of ferrochromium alloys |
| 09/22/1981 | US4290805 Method for obtaining iron-based alloys allowing in particular their mechanical properties to be improved by the use of lanthanum, and iron-based alloys obtained by the said method |
| 09/01/1981 | CA1107940A1 Process for the preparation of silicon or ferrosilicon |
| 08/06/1981 | WO1981002168A1 Metallic composition and method of its manufacture |
| 08/04/1981 | US4282032 Direct method for production of high-grade, high-purity ferromanganese |
| 07/29/1981 | EP0032492A1 Silico-thermal process for obtaining, in ladle, alloys based on manganese and silicium |
| 07/21/1981 | US4279650 For alloying stainless steels -low melting point |
| 06/23/1981 | US4274871 Method of obtaining manganese alloys with a medium carbon content |
| 05/26/1981 | US4269620 Process for the preparation of silicon or ferrosilicon |
| 05/06/1981 | EP0028208A1 A process for the preparation of silicon or ferrosilicon |
| 04/07/1981 | US4260418 Method for producing molybdenum bearing ferrochromium |
| 04/07/1981 | US4260414 Process for recovering and utilizing useful substances from molten metal produced during reduction treatment of steel slag |
| 03/17/1981 | US4256487 Silico-thermal reduction of vanadium pentoxide |
| 03/10/1981 | US4255184 Method and apparatus for refining ferrosilicon |
| 02/24/1981 | CA1096135A1 Process for lowering the sulfur content of vanadium- carbon materials used as additions to steel |
| 02/17/1981 | CA1095727A1 Method for separating a mixture of molten oxidized ferrophosphorus and refined ferrophosphorus |
| 02/05/1981 | WO1981000262A1 Silico-thermal process for obtaining,in ladle,alloys based on manganese and silicium |
| 01/07/1981 | EP0020937A1 Method of enhancing the magnetic properties of amorphous metal alloys |
| 11/25/1980 | US4235623 Chrome ore and coke |
| 11/25/1980 | CA1090140A1 Conversion of molybdenite concentrate to ferro- molybdenum and simultaneous removal of impurities by direct reduction with sulfide forming reducing agents |
| 11/11/1980 | US4233065 Effective boron alloying additive for continuous casting fine grain boron steels |
| 11/04/1980 | US4231798 Alloy carrier for charging cupola furnaces |
| 10/21/1980 | US4229214 Melting zirconic concentrate, iron ore, aluminum |
| 10/07/1980 | CA1086957A1 Method for making strontium additions to ferrosilicon |
| 09/30/1980 | CA1086503A1 Process for the production of ferromolybdenum in an electric arc furnace |
| 08/26/1980 | US4219355 Iron-metalloid amorphous alloys for electromagnetic devices |
| 07/22/1980 | CA1082005A1 Alloy for rare earth treatment of molten metals |
| 06/12/1980 | WO1980001170A1 Disilification process of manganese alloys |
| 06/10/1980 | CA1079095A1 Vacuum smelting process for producing ferromolybdenum |
| 05/13/1980 | CA1077277A1 Process for refining high-carbon ferro-alloys |
| 05/06/1980 | US4201576 Pulverizing, oxidizing silicon |
| 03/18/1980 | CA1073706A1 Method of and alloy for treating molten iron |
| 03/11/1980 | US4192675 Process for decarburizing ferro-manganese |
| 02/26/1980 | US4190435 Reducing oxide-rich slags |
| 10/17/1979 | EP0004819A1 Process for the production of ferrous alloys with improved mechanical properties by the use of lanthanum, and ferrous alloys obtained by this process |
| 09/11/1979 | US4167409 By combining with silicon, silicon dioxide, or tin |
| 08/28/1979 | US4165980 Method of rapidly decarburizing ferro- alloys with oxygen |
| 07/24/1979 | US4162159 Cast iron modifier and method of application thereof |
| 07/10/1979 | US4160661 Process for the production of ferromolybdenum in an electric arc furnace |
| 05/22/1979 | US4155753 Continuous one-stage reduction of ore and quartz and smelting |
| 05/01/1979 | US4152138 Method for separating a mixture of molten oxidized ferrophosphorus and refined ferrophosphorus |
| 04/03/1979 | US4147533 Process for the production of ferro-magnesium and the like |
| 02/13/1979 | US4139370 Blowing oxygen into a melt, decarburization |
| 01/23/1979 | US4135921 Process for the preparation of rare-earth-silicon alloys |
| 01/09/1979 | US4133678 Reducing and nitriding iron and iron oxide containing flue dust to form ferro-nitride steel additive |
| 12/19/1978 | US4130417 Process for refining high-carbon ferro-alloys |
| 12/12/1978 | US4129439 Process for refining molten steel using ferroalloy |
| 12/05/1978 | US4128417 Silicon carbide and/or iron silicide |
| 11/07/1978 | US4124378 Method of solidifying the slag obtained in ferrochromium production |
| 10/24/1978 | US4121924 Nickel, iron, and rare earth metal |
| 09/12/1978 | US4113479 Vacuum smelting process for producing ferrotungsten |
| 08/22/1978 | CA1036844A1 Alloy additive |
| 07/18/1978 | US4101316 Conversion of molybdenite concentrate to ferro-molybdenum and simultaneous removal of impurities by direct reduction with sulfide forming reducing agents |
| 04/25/1978 | US4086086 Alloy of silicon, magnesium, titanium, calcium, cerium and iron |
| 01/31/1978 | US4071354 Low alloy steels |
| 10/04/1977 | US4052202 Zirconium alloy additive and method for making zirconium additions to steels |
| 09/13/1977 | US4047942 Thermite smelting of ferromolybdenum |
| 07/19/1977 | US4036641 Adding an alloy of silicon, magnesium, iron, titanium, and a rare earth to molten iron |
| 07/12/1977 | US4035183 Method for making aluminum-containing ferroalloy |
| 04/12/1977 | US4017310 Adding carbon and strontium oxide, carbonate, or sulfate |
| 02/15/1977 | US4008104 Method for dephosphorization and denitrification of an alloy containing easily oxidizable components |
| 08/31/1976 | US3977868 Silicon, calcium, chromium, manganese |