| Patents for C22B 7 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof (11,341) |
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| 04/19/2001 | WO2001026833A1 Process and apparatus for recovering heavy metals from contaminated materials |
| 04/19/2001 | WO2001026793A1 Method for separation of a molten mixture |
| 04/18/2001 | EP1092493A2 Metal powders obtained from residue of material removal processes on iron parts produced by chill casting |
| 04/18/2001 | CN1064716C Method for recovering and regenerating waste hard alloy |
| 04/17/2001 | US6217823 Metal scrap submergence system |
| 04/12/2001 | WO2001025497A1 Production of zinc oxide from complex sulfide concentrates using chloride processing |
| 04/12/2001 | WO2001025495A1 Method for pyrometallurgical treatment of waste from iron and steel production |
| 04/12/2001 | DE19947343A1 Melting zinc-containing materials containing heavy metals comprises reductively moving the burner and/or the liquid slag so the zinc is converted into the gas phase |
| 04/11/2001 | EP1091007A1 Method of recovering and recycling magnetic powder from resin-bonded rare earth metal magnet |
| 04/11/2001 | EP1090695A1 Process and apparatus for recovering heavy metals from contaminated materials |
| 04/11/2001 | EP1090152A1 Method for processing steel slags |
| 04/11/2001 | EP1090151A1 Process for separation of heavy metals from residues by use of of ethylenediamine-disuccinic acid (edds) complexant |
| 04/11/2001 | EP0832041B1 Sodium tungstate preparation process |
| 04/11/2001 | CN1290759A Method of treating arsenic alkaline slag from antimony smelting |
| 04/10/2001 | US6214302 Production of aluminum sulfate from coal ash |
| 04/05/2001 | WO2001023627A1 Process to selectively recover metals from waste dusts, sludges and ores |
| 04/05/2001 | DE19946430A1 Verfahren zur Verwertung von Eisen, Zink und Blei enthaltenden Sekundärrohstoffen Process for the recovery of iron, zinc and lead-containing secondary raw materials |
| 04/04/2001 | EP1088904A1 Method of treating iron, zinc and lead bearing secondary materials such as steelmaking furnace dusts |
| 04/04/2001 | EP1088111A1 Continous metal melting process and apparatus |
| 04/04/2001 | CN1064086C Method for recovering valuable elements from rare-earth and ferrous alloy |
| 04/03/2001 | CA2055484C Process for two-phase extraction of metallic ions from phases containing solid metallic oxides, agent and use |
| 03/29/2001 | DE19946326A1 Recycling colored metals from the slag of copper winning comprises reacting the granulated slag with semi-concentrated sulfuric acid, roasting the cake produced and treating with alkali |
| 03/28/2001 | EP1087022A1 A direct smelting process |
| 03/28/2001 | EP1086255A1 Method for continuous separation of impurities and alloyings from liquid metal baths and device for implementing said method |
| 03/28/2001 | CN1288987A Method of separating fiber and alumimium foil from paper-lining aluinium foil leftover |
| 03/28/2001 | CA2321311A1 Method of utilizing secondary raw materials containing iron, zinc and lead |
| 03/22/2001 | WO2001020048A1 High temperature modification of steelmaking slag to provide construction material |
| 03/21/2001 | EP1085104A1 Method of working-up incineration residues into a disposable material using an oxidizing wash treatment |
| 03/21/2001 | EP0877828B1 Dross pot for dross processing |
| 03/21/2001 | CA2282884A1 Decontamination method for treatment residues |
| 03/20/2001 | US6203704 Method for separating objective component |
| 03/20/2001 | US6202948 Apparatus for handling mercury containing lamps |
| 03/15/2001 | WO2001018602A1 Method to extract silver from a photographic developer |
| 03/14/2001 | CN1063229C Method for recovering nickel hydrometallurgically from two different nickel mattes |
| 03/13/2001 | US6200527 Carbon or low-alloy steel with improved machinability and process of manufacture of that steel |
| 03/13/2001 | US6199779 Comminuting and classifying dross into metal-enriched and salt-enriched size fractions and classifying the metal containing fraction into a product stream and recycle stream |
| 03/08/2001 | WO2001016386A1 Reclamation of metals like uranium from contaminated solids such as incinerator ash by fluorination and leaching |
| 03/07/2001 | EP1080239A1 Process to recover molybdenum and vanadium metals from spent catalyst by alkaline leaching |
| 03/07/2001 | EP1080238A1 Method for processing residues containing at least one non-ferrous metal and/or compounds thereof |
| 03/07/2001 | EP1017511A4 Process for cleaning mercury-contaminated soils |
| 03/07/2001 | CN1286315A Process for comprehensive utilization of blast furnace top gas mud containing Zn |
| 03/06/2001 | US6197250 Telescopic dross pot |
| 03/06/2001 | US6197087 Pyrolysis of halogenated organic hazardous wastes with direct reduction of iron oxides |
| 03/01/2001 | DE19940684A1 Removal of elementary mercury from residues produced during natural gas recovery comprises separating out elementary mercury and foreign materials, re-suspending, classifying fine and coarse solids and further treating |
| 02/27/2001 | US6193941 Scrubbing from synthesis gas formed in partial oxidation by aqueous scrubbing solution; filtering; drying filter cake; burning a dust-free soot conditioned in pulverized fuel burner; cooling; releasing heat; separating off heavy metals |
| 02/27/2001 | US6193780 Process and apparatus for the recovery of aluminum and energy from used aluminum-plastic packages |
| 02/27/2001 | US6193503 Ash melting furnace and ash melting method thereof |
| 02/22/2001 | WO2001012268A1 Ammonia removal from fly ash |
| 02/20/2001 | US6190626 Detoxifying spent aluminum potliners |
| 02/15/2001 | DE19932334C1 Smelting residual materials in a vertical furnace comprises operating the furnace with a hot wind and a combined oxygen injection/enrichment of the wind, and adjusting the heat profile in the furnace |
| 02/14/2001 | CN1062023C Method for recovering copper and chromium from waste industrial catalyst |
| 02/13/2001 | US6186884 Apparatus for handling mercury containing lamps |
| 02/08/2001 | WO2000050649A3 Method and apparatus for removing undesirable metals from iron-containing materials |
| 02/07/2001 | CN1061693C Method and device for extracting liquid light metal from dispersed mixture |
| 02/06/2001 | US6183533 Heating to evaporate mercury; air flow |
| 02/01/2001 | WO2001008245A1 High efficiency process for treating mixed metal waste |
| 02/01/2001 | WO2001007671A1 Process for manufacturing corrosion resistant composite metal products |
| 02/01/2001 | WO2001007670A1 Method for the preparation of fine grain ores |
| 02/01/2001 | CA2378956A1 Method for the preparation of fine grain ores |
| 01/31/2001 | EP0766750B1 Process and plant for recycling iron-containing residues from the steel and iron industry |
| 01/31/2001 | CN1282287A Method of removing metallic coating layer from scrap metal pieces |
| 01/30/2001 | US6180072 Process to recover metals from spent catalyst |
| 01/30/2001 | CA2212493C Method of treating aluminum dross residue |
| 01/25/2001 | WO2000065111B1 Oxidative pressure leach recovery of precious metals using halide ions |
| 01/24/2001 | EP1070761A2 Process for the valorisation of slags containing hydrocarbons and scale |
| 01/24/2001 | EP1070150A1 Method for treating steel works dust by wet process |
| 01/24/2001 | EP1070149A1 Metal scrap submergence system for scrap charging/melting well of furnace |
| 01/24/2001 | EP0946769B1 Dross press with rocking press head |
| 01/23/2001 | CA2146732C Process for producing an iron melt |
| 01/18/2001 | WO2001004064A1 Process for casting and forming slag products |
| 01/17/2001 | CN1060818C Process for producing hydraulic binder rough steel, metal and/or alloy, e.g. ferrochromium or ferrovanadium |
| 01/10/2001 | EP1066128A1 Metal powders obtained from residue of material removal processes on iron parts produced by chill casting |
| 01/10/2001 | CN1060530C Method for recovery of cobalt salt with wbolt sulfonate slag of electrolytic zinc plant |
| 01/04/2001 | WO2001000343A1 Method for accelerated remediation & method of using an apparatus therefor |
| 01/03/2001 | EP1064412A1 Method for transforming slag derived from non-iron metallurgy |
| 01/03/2001 | CN1278871A Direct-reduction method for production of iron, molten, cast iron and steel |
| 01/03/2001 | CN1278560A Recovery and regeneration method of steel junction hard alloy |
| 12/28/2000 | WO2000079014A1 Method for recovering metallic chromium from slag containing chromium oxide |
| 12/27/2000 | EP1063200A1 Process for the direct production of germanium tetrachloride from hydrated germanate-containing solids using gaseous hydrogen chloride |
| 12/26/2000 | US6165367 Which contains interfering anions such as sulfates, nitrates,and carbonates, by capturing the heavy metal such as uranium with a chelating resin containing amino-phosphonic groups, eluting resin with sequestering agent, regenerating |
| 12/26/2000 | US6165067 Method for handling mercury containing lamps |
| 12/21/2000 | DE19927784A1 Verfahren zum Lösen von bei in Kontakt mit Halogenwasserstoffsäure Wasserstoff entwickelnde Unedelmetalle aufweisenden und Edelmetalle in metallischer und/oder legierter Form aufweisenden Scheidgütern Having process for dissolving at developing into contact with hydrogen halide acid hydrogen base metals and precious metals having in metallic and / or alloyed form Scheid goods |
| 12/21/2000 | DE19927134A1 Recovering mercury for industrial use from contaminated sludge comprises heating and condensation on mobile assembly in low-cost process |
| 12/20/2000 | EP1061142A1 Method for dissolving metals |
| 12/20/2000 | EP1060126A1 Recovery of products from non-metallic products derived from aluminum dross |
| 12/19/2000 | CA2132548C Process and plant for removing lead and zinc from metallurgical-works dust |
| 12/14/2000 | WO2000075385A1 Method for conditioning slag with the addition of metallurgical residual materials and an installation for the same |
| 12/14/2000 | WO2000075384A1 Process of agglomerating particulate waste material |
| 12/14/2000 | WO2000074838A1 Process for recycling heterogeneous waste |
| 12/14/2000 | CA2370994A1 Process for recycling heterogeneous waste |
| 12/12/2000 | US6159269 Furnace having refractory walls which can store/accumulate heat from the oxidation of a dross charge to provide heat conduction to the next dross charge; injecting oxygen after tapping of the metal to burn unrecoverable metal |
| 12/12/2000 | US6159268 Process for pyrometallurgical processing in a furnace chamber, of metal-containing waste |
| 12/07/2000 | WO2000073521A1 Method for separating in an aqueous medium lanthanides and/or actinides by combined complexing-nanofiltration, and novel complexing agents therefor |
| 12/07/2000 | WO2000073520A1 Recovery of cobalt and nickel from iron-rich mattes and alloys by leaching |
| 12/06/2000 | EP0773831B1 Method and device for separating harder from less harder material |
| 12/06/2000 | CN1275821A Method for recoverying negative electrode material from waste lithium cell |
| 12/06/2000 | CN1059242C Method for recoverying platinum from ammonia oxidation converter waste |
| 12/06/2000 | CN1059241C Process for efficiently extracting cobalt oxide(s) from leftover containing cobalt |
| 12/05/2000 | US6155965 Smelting fly ash to a leaching resistant slag by oxidizing with added a carbon or hydrocarbonaceous substance which supplies additional energy, also reducing zinc and lead contend |
| 12/05/2000 | CA2076613C Recovery of thallium from metallurgical flue dusts |