| Patents for C22B 1 - Preliminary treatment of ores or scrap (10,434) |
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| 03/17/1981 | US4256485 With yeast or malt to form hydrogen sulfide and sulfates |
| 03/10/1981 | US4255185 Processes and apparatus for reducing and subsequently pelletizing moist fine-grained ore |
| 03/10/1981 | US4255130 Apparatus and method for treating an aggregate material with a flowing gas |
| 03/10/1981 | US4254876 Method and apparatus for separating insufficiently cooled metal sponge particles from a mass of such particles |
| 03/10/1981 | CA1097084A1 Modified metamorphosed iron ore and method of producing same |
| 03/05/1981 | WO1981000526A1 Method of processing pyrite-containing polymetallic raw material |
| 03/03/1981 | US4254167 Partially hydrated lime coating |
| 03/03/1981 | CA1096613A1 Briquette forming apparatus |
| 02/24/1981 | US4252774 Method of processing aluminous ores |
| 02/24/1981 | US4252577 Method and apparatus for treating metal scrap cuttings |
| 02/24/1981 | CA1096166A1 Ignition hood with swirl combustion chamber |
| 02/19/1981 | WO1981000418A1 Method of processing pyrite-containing polymetallic raw material |
| 02/17/1981 | US4251265 Clay preparation |
| 02/17/1981 | US4251062 Ignition hood with swirl combustion chamber |
| 02/10/1981 | US4250027 Scouring |
| 02/10/1981 | US4249722 Apparatus for the flash oxidation of metal concentrates |
| 02/10/1981 | CA1095572A1 Electrothermal fluidized bed furnace |
| 02/10/1981 | CA1095265A1 Process for clarifying iron ore slimes |
| 02/10/1981 | CA1095264A1 Thermo-activation process |
| 02/10/1981 | CA1095263A1 Method of separating ferritic steel or ductile iron from certain nonferrous metals |
| 02/10/1981 | CA1095256A1 Process for upgrading iron ore pellets |
| 02/10/1981 | CA1095255A1 Process for upgrading iron ore pellets |
| 02/10/1981 | CA1095254A1 Process for upgrading iron ore pellets |
| 02/03/1981 | CA1094817A1 Hydrometallurgical recovery of metal values |
| 01/20/1981 | USRE30488 Method for preparing dry collected fume for use in metallurgical furnaces |
| 01/20/1981 | CA1093839A1 Hydrometallurgical recovery of metal values |
| 01/20/1981 | CA1093831A1 Uranium extraction |
| 01/20/1981 | CA1093829A1 Chlorination of titanium slags |
| 01/20/1981 | CA1093793A1 Process of thermally treating solids |
| 01/13/1981 | US4244926 Moving bed chlorination of bauxite and ilmenite |
| 01/13/1981 | US4244905 Method and apparatus for the manufacture of mold bodies, particularly pellets from secondary slurries of the metallurgical industry |
| 01/13/1981 | US4244492 Packaging for reclaiming scrap metal |
| 01/07/1981 | EP0021875A2 Process for eliminating a combustible material enveloping solid fragments and apparatus for carrying out said process |
| 01/07/1981 | EP0021465A1 Process for briquetting a material containing sponge iron |
| 01/06/1981 | US4243179 Process for preparation of raw material minimizing the size degradation of anatase ore |
| 01/06/1981 | CA1092827A1 Sintering process for iron ore mixtures |
| 12/30/1980 | US4242124 Process for the selective removal of impurities present in sulfidic complex ores, mixed ores or concentrates |
| 12/30/1980 | CA1092477A1 Fluidizing means for reducing viscosity of slurries |
| 12/30/1980 | CA1092366A1 Recovery of unoxidized metals from organic insulated metallic scrap |
| 12/16/1980 | US4239530 Process for producing metallized iron pellets |
| 12/16/1980 | US4239529 Selective enhancement of magnetic susceptibility of mineral values to permit physical separation from gangue |
| 12/10/1980 | EP0019953A1 Roller grate for conveying green pellets |
| 12/09/1980 | US4238225 Method of monitoring conversion of iron ore into high content pellets |
| 11/27/1980 | WO1980002566A1 A process for bonding agglomerates |
| 11/11/1980 | CA1089196A1 Process of thermally treating solids |
| 11/04/1980 | US4231797 Fired iron-ore pellets having macro pores |
| 11/04/1980 | US4231791 Zinc sulfide, lead sulfide, oxidation |
| 10/28/1980 | US4230458 Filtration, slurrying, drying |
| 10/28/1980 | CA1088316A1 Ore halogenation process |
| 10/28/1980 | CA1088309A1 Method for agglomerating finely divided agglomerative materials in a rotary drum assembly |
| 10/28/1980 | CA1088277A1 Pellet-rolling method |
| 10/21/1980 | US4229209 Process for beneficiating gold |
| 10/15/1980 | EP0017285A1 Process for the recovery of metals from catalysts used in the hydrodesulfurization of hydrocarbons |
| 10/14/1980 | US4228133 Apparatus for sulfatizing roasting of a finely-divided selenium-bearing raw material |
| 10/07/1980 | US4226617 Method for treating a mineral sulfide |
| 10/07/1980 | CA1087133A1 Solid-liquid separation of laterite slurries |
| 10/01/1980 | EP0016624A1 Coal de-ashing process |
| 10/01/1980 | EP0016516A1 Process for upgrading iron-containing materials and the product obtained by this process |
| 09/30/1980 | US4225422 Beneficiation of heavy minerals from bituminous sands residues by dry screening |
| 09/30/1980 | CA1086506A1 Continuous recovery of base metal from insulated wire scrap |
| 09/23/1980 | US4224122 Recovery of non-ferrous metals by thermal treatment of solutions containing non-ferrous and iron sulphates |
| 09/09/1980 | US4221588 Oxidation roasting of ore |
| 09/09/1980 | US4221559 Process and apparatus for firing pellets |
| 09/09/1980 | US4221040 Method for making pellet for charging furnaces |
| 09/09/1980 | CA1085108A1 Binder composition |
| 09/03/1980 | EP0015085A1 An improved raw materials mix and process for producing self-fluxing, sintered ores |
| 08/26/1980 | CA1084269A1 Apparatus and method for producing a gas suitable for hardening iron ore pellets |
| 08/20/1980 | EP0014255A1 Process for the densification of flue dust containing zinc oxides |
| 08/19/1980 | CA1083825A1 Process for concentration of titanium ore |
| 08/19/1980 | CA1083823A1 Magnesium reclamation process and apparatus |
| 08/06/1980 | EP0013871A1 Process and apparatus for cooling burnt material such as sinters or pellets |
| 08/05/1980 | CA1082890A1 Balling process |
| 07/29/1980 | CA1082467A1 Method of recovering non-ferrous metals from sulphidic materials |
| 07/22/1980 | US4213793 Dissolving separating and crystallizing sulfur |
| 07/22/1980 | US4213779 Treatment of steel mill waste materials |
| 07/22/1980 | US4213778 Process for treating a mud produced during gas scrubbing in a blast furnace or a steelworks |
| 07/22/1980 | CA1082125A1 Production of aluminium |
| 07/22/1980 | CA1081967A1 Blank, the shaping of which is carried out as it is obtained by filter-dehydration |
| 07/15/1980 | US4212615 Rotary drum agglomerating apparatus |
| 07/08/1980 | US4211755 Process for beneficiating titaniferous ores |
| 07/08/1980 | US4211524 Rolls for compacting mill |
| 07/08/1980 | CA1080978A1 Method of treating raw materials containing components of metals of group ivb of the periodic table |
| 07/01/1980 | CA1080481A1 Recovery of precious metals from refractory material |
| 06/25/1980 | EP0012363A1 Method of and means for reducing ores |
| 06/24/1980 | US4209322 Pelletization, reduction |
| 06/24/1980 | CA1079978A1 Method for agglomerating wet-collected fume for use in metallurgical furnaces and agglomerates produced thereby |
| 06/24/1980 | CA1079962A1 Method of sintering and apparatus for carrying out the method |
| 06/24/1980 | CA1079932A1 Method of recovering magnesia from scrap brick |
| 06/11/1980 | EP0012063A1 Process for preparing porous metal oxide beads |
| 06/10/1980 | CA1079079A1 Cooling of pulverulent solids |
| 06/10/1980 | CA1079032A1 Method of carrying out endothermic processes |
| 06/03/1980 | US4205979 Process for beneficiating oxide ores |
| 06/03/1980 | US4205455 Method and an apparatus for steam curing agglomerates |
| 06/03/1980 | CA1078976A1 Beneficiation of lithium ores by froth flotation |
| 06/03/1980 | CA1078628A1 Method for removing water content and grease deposit from rolling mill sludge |
| 06/03/1980 | CA1078622A1 Method for reduction in a fluid bed of fine grained material containing iron oxide |
| 06/03/1980 | CA1078621A1 Iron ore pellet having a specific shape and method of making same and also method of operating a blast furnace |
| 05/28/1980 | EP0011559A1 Process and apparatus for wet attrition |
| 05/27/1980 | CA1078189A1 Process for agglomeration of ore materials |
| 05/20/1980 | US4203759 Process for the preparation of a vanadium-containing metallic ash concentrate |