| 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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| 12/30/1998 | WO1998059385A1 Lithium recovery and purification |
| 12/30/1998 | EP0887429A1 Process and apparatus for treating heavy metals and halogenated hydrocarbons containing materials by thermal evaporation in vacuum |
| 12/30/1998 | CN1203634A Method and deivce for decarburizing molten steel |
| 12/30/1998 | CN1041440C Method of producing iron-containing briquettes for smelting iron |
| 12/29/1998 | US5854061 Method for accelerated chemical and/or biological remediation and method of using an apparatus therefor |
| 12/29/1998 | US5853453 Method of processing iron-containing mettalurgical residual substances as well as arrangement for carrying out said method |
| 12/23/1998 | WO1998058091A1 Process and plant for producing iron smelt in an electric arc furnace by using agglomerated, iron-containing steel work residues |
| 12/23/1998 | WO1998058090A2 A method and a device for recovering metals comprising dissolving, concentrating and electrowinning means with rotatable cathode |
| 12/23/1998 | EP0886118A1 Rotary drum furnace in particular for remelting aluminium |
| 12/23/1998 | EP0819183B1 Treatment of fly ash |
| 12/23/1998 | EP0783592B1 Bonded medium |
| 12/22/1998 | US5851500 Removal of uranium contamination from magnesium fluoride slag |
| 12/22/1998 | US5851490 Method for utilizing PH control in the recovery of metal and chemical values from industrial waste streams |
| 12/22/1998 | CA2065319C Smelting of metallurgical waste materials containing iron compounds and toxic elements |
| 12/17/1998 | WO1998056516A1 Method for cleaning contaminated ground and soils and device for implementing the same |
| 12/16/1998 | EP0883427A1 Metallurgical dust recycle process |
| 12/15/1998 | US5849062 Method for recovering metallic materials of gas generator for air bag |
| 12/15/1998 | CA1340230C Process for removing heavy metal compounds from the filtrer dust from trash incinerators, flue gas dust precipitators and gas-cleaning units |
| 12/08/1998 | US5846480 Aluminum remelting furnace, in particular for melting aluminum scrap to be recycled |
| 12/08/1998 | US5846290 Method for the recovery of group IA salts during the treatment of industrial process waste streams |
| 12/03/1998 | WO1998053969A1 Method for processing material comprising aluminium and plastic |
| 12/02/1998 | CN1200309A Method for treating matter contg. chromium oxides in large scale, and method for utilizing after-treatment matter |
| 12/01/1998 | US5843204 Method for recycling iron and steel industry waste |
| 11/26/1998 | WO1998053108A1 Fluidised bed method for the recovery of metal from organics-containing metal waste |
| 11/26/1998 | WO1998052703A1 Waste disposing method |
| 11/25/1998 | EP0879653A1 Method and apparatus for reclaiming empty can of aluminum |
| 11/25/1998 | CN1199853A Method for cleaning slag in electric furnace |
| 11/24/1998 | US5840193 Fluid extraction using carbon dioxide and organophosphorus chelating agents |
| 11/19/1998 | WO1998051829A1 Aluminum scrap cleaning and decarbonization |
| 11/18/1998 | EP0877830A1 Method for separating tin and if necessary copper from scrap melting, specially tinplate melting or metallic melting |
| 11/18/1998 | EP0877828A1 Press head and dross pot for dross processing system |
| 11/18/1998 | EP0877827A1 Method for processing a powdery material, and apparatus therefor |
| 11/12/1998 | WO1998050922A1 Method for treating metallic waste contaminated by radionuclides |
| 11/12/1998 | WO1998050159A1 Apparatus and method for handling mercury containing lamps |
| 11/12/1998 | CA2288151A1 Apparatus and method for handling mercury containing lamps |
| 11/11/1998 | CN1040663C Recovery of palladium catalyst |
| 11/10/1998 | US5833937 Agglomerating by sequential addition of first water soluble anionic or nonionic polymer and second cationic water soluble polymer |
| 11/10/1998 | US5833735 Method of making steel |
| 11/05/1998 | WO1998049355A1 Process and device for recovering raw materials from waste and residues |
| 11/05/1998 | WO1998049105A1 Wastewater treatment process for vacuum degasser effluent |
| 11/04/1998 | EP0874915A1 Method for separating titanium and/or vanadium from pig iron |
| 11/04/1998 | EP0805786B1 Method of utilizing dusts produced during the reduction of iron ore |
| 11/04/1998 | EP0687309B1 Method and plant for removing and recycling of materials |
| 11/04/1998 | EP0649912B1 Method for collecting valuable metal from nickel-hydrogen secondary cell |
| 11/04/1998 | CN1198190A Method for separating titanium and/or vanadium from pig iron |
| 11/04/1998 | CN1197846A High-silicon low-vanadium iron smelting technology using high-vanadium iron slag as material |
| 11/04/1998 | CN1040553C Method for treating blast furnace slag with diluted hydrochloric acid |
| 10/29/1998 | WO1998048066A1 Method for utilizing ph control in the recovery of metal and chemical values from industrial waste streams |
| 10/29/1998 | WO1998048065A1 Method for recycling brass foundry waste |
| 10/29/1998 | WO1998048063A1 Method for the recovery of group ia salts during treatment of industrial process waste streams |
| 10/29/1998 | CA2293687A1 Method for utilizing ph control in the recovery of metal and chemical values from industrial waste streams |
| 10/28/1998 | CN1197485A Method of purifying gold |
| 10/27/1998 | US5827349 Method of recycling nickel and cobalt alloy scrap metal contaminated with titanium |
| 10/27/1998 | US5826806 Method and arrangement for breaking up materials in metallic casings |
| 10/21/1998 | EP0872321A2 Method for processing discarded electric motors |
| 10/21/1998 | EP0871787A1 Electrochemical processing method for catalyst substrates containing noble metals for the recovery thereof |
| 10/21/1998 | EP0871520A1 Method for processing waste containing metal contaminants using a reducing agent |
| 10/21/1998 | EP0716715B1 Recovery of aluminum and/or fluoride values from used aluminum chlorofluorides |
| 10/20/1998 | US5824988 Reactor and method for the treatment of particulate matter by electrical discharge |
| 10/20/1998 | US5824541 Method for accelerated remediation and method of using an apparatus therefor |
| 10/20/1998 | US5824134 Direct reduction of iron ore utilizing organic hazardous materials |
| 10/15/1998 | WO1998045488A1 Extraction by sorption of platine group metals from part and instrumentation surfaces |
| 10/15/1998 | WO1998045485A1 Method for recycling iron bearing sludges in a steelmaking operation |
| 10/14/1998 | EP0870068A1 Use of a process for melting small pieces of light metal scrap |
| 10/14/1998 | EP0870067A1 Method of processing finely divided material incorporating metal based constituents |
| 10/14/1998 | CA2234527A1 Method for cleaning slag in an electric furnace |
| 10/13/1998 | US5820668 Polysialate or a polysialate-siloxo |
| 10/13/1998 | US5820653 Process for making shaped copper articles |
| 10/08/1998 | DE19715319A1 Removal of metal from electronic scrap |
| 10/07/1998 | EP0869193A1 Method for processing chromium oxide-containing substances in large quantities, method for utilizing the processed substances, and products comprising the processed substances |
| 10/07/1998 | EP0869192A2 Extraction of non-ferrous metal from metal scrap parts by liquation and tunnel furnace installation therefor |
| 10/07/1998 | EP0868406A1 Inorganic binder composition, production and uses thereof |
| 10/07/1998 | EP0868226A2 Apparatus and method for waste recycling and conversion |
| 10/07/1998 | CN1040134C Method for recovering zinc from zinc containing dust |
| 10/06/1998 | US5817163 Evaporation of carbon-containing coating |
| 10/01/1998 | DE19731027C1 Disposal of ammunition, poisons and chemicals |
| 09/30/1998 | EP0867028A2 Process for recycling contaminated metal parts |
| 09/30/1998 | EP0866881A1 Process for reclaiming incineration waste |
| 09/30/1998 | CN1194670A Process for recovering and disposing of residues produced in cupola furnaces |
| 09/24/1998 | WO1998041328A1 Fibre optic sagnac nterferometer |
| 09/23/1998 | EP0865508A1 Treatment of waste products that contain organic substances |
| 09/23/1998 | EP0800710B1 Process for recovery of metals from used nickel-metal hydride accumulators |
| 09/22/1998 | US5811056 Cooling system for press head |
| 09/17/1998 | WO1998040524A1 Method of producing an agglomerate |
| 09/17/1998 | DE19710529A1 Verfahren zur Anreicherung von Silber oder anderen Wertmetallen durch Flotation aus einer Suspension, beispielsweise aus den Rückständen der Zinklaugung Method for the enrichment of silver or other precious metals by flotation from a suspension, for example, from the residues of wet extraction of zinc |
| 09/15/1998 | US5807420 Process for reduction of iron with solid fuel objects as amended by exam |
| 09/09/1998 | EP0863218A1 A method and apparatus for germanium reclamation from chemical vapor deposition exhaust gas streams |
| 09/09/1998 | EP0863216A2 Method of treating metal/plastic composite waste material by heat decomposition |
| 09/09/1998 | EP0863138A1 A process for recovering mercapto-s-triazines from silver precipitate |
| 09/09/1998 | EP0862780A1 Method of utilizing contaminated metal parts |
| 09/09/1998 | EP0831984A4 Process for recovering iron from iron-rich material |
| 09/09/1998 | CN1192785A Method for recovering nickel hydrometallurgically from two different nickel mattes |
| 09/08/1998 | US5803379 Composting apparatus |
| 09/03/1998 | DE19706348C1 Vorrichtung zur Direktreduktion von Feinerzen Apparatus for direct reduction of fine ores |
| 09/02/1998 | EP0861910A2 Chemical treatment of aluminum alloys to enable alloy separation |
| 09/02/1998 | EP0861337A1 Method and device for decarburizing steels melts |
| 09/02/1998 | EP0795036A4 Method for producing iron feedstock |
| 09/02/1998 | CN1192165A Process for making shaped copper articles |
| 09/01/1998 | US5800878 Reducing hydrogen concentration in pecvd amorphous silicon carbide films |
| 08/27/1998 | DE19707453A1 Reinforcing motion of the metal during melting of aluminium@ in hydraulically tiltable furnaces |