| Patents for C22B 1 - Preliminary treatment of ores or scrap (10,434) |
|---|
| 12/01/1999 | CN1236816A Technology for comprehensive utilization of V-Ti magnetite |
| 11/30/1999 | US5993508 Briquette as an additive for metallurgic purposes comprising silicon-containing residues, and process for its production |
| 11/30/1999 | US5992640 Precious metals recovery from ores |
| 11/25/1999 | WO1999060375A1 Moisture content analysis of substances by flooding |
| 11/25/1999 | WO1999060175A1 Conglomeration of minerals from a granular state with binder including waterglass, acrylic resin and vinyl alcohol |
| 11/25/1999 | CA2332797A1 Conglomeration of minerals from a granular state with binder including waterglass, acrylic resin and vinyl alcohol |
| 11/24/1999 | EP0958385A1 Method of agglomerating oil-containing steel mill waste |
| 11/24/1999 | CN1046767C Method for recovering silver and nickel contact material leftover bits for producing contact material |
| 11/18/1999 | WO1999058260A1 Treating apparatus, treating method and method of treating soil |
| 11/09/1999 | US5980725 Method for upgrading waste material comprising sheet metal with a zinc plating on at least one side thereof |
| 11/03/1999 | EP0953060A1 Particle agglomeration by metal sulphate hydration |
| 11/03/1999 | CN1233666A System for controlling cooling of agglomerate |
| 11/03/1999 | CN1046141C Aluminum electrolytic flue dust, dirty material, adsorbing asphalt and aluminium oxide boiling- bed roasting equipment |
| 11/03/1999 | CN1046140C Sintering process for making cherry like small ball by adding water soluble additives in iron concentrate |
| 10/28/1999 | WO1999054514A1 Ore comminution process using bed-compression method at low pressures and installation therefor |
| 10/27/1999 | EP0866730A4 Polymer coated powders |
| 10/27/1999 | CN1232879A Salt adding roast and cyanidation process to extract Au, Ag and Cu comprehensively for copper containing aurin ore |
| 10/26/1999 | US5972302 Method for the microwave induced oxidation of pyritic ores without the production of sulphur dioxide |
| 10/20/1999 | EP0950122A1 Method for microwave induced oxidation of sulphidic ore material in fluidized bed without sulphur dioxide emissions |
| 10/20/1999 | EP0950117A1 A method and an apparatus for producing metals and metal alloys |
| 10/20/1999 | EP0679197B1 Process for manufacturing corrosion resistant metal products |
| 10/20/1999 | CN1045729C Method of recovering metal material from gas generator for air bag in condemned automobile |
| 10/19/1999 | US5968224 Pelletization of sifted, fine particulate material with alkali or alkaline earth metal-free binder, then smelting in oxygen-free atmosphere to form useful ferrotitanium alloy or high titanium slag; pollution control |
| 10/13/1999 | CN1045625C Hydrometallurgical conversion of zinc sulfide to sulfate from zinc sulfide containing ores and concentrates |
| 10/12/1999 | US5964045 Method and apparatus for the purification of oil-containing and water-containing roll scale sludge |
| 10/06/1999 | EP0946767A1 Recovery of iron products from waste material streams |
| 10/06/1999 | CN1045474C Process and apparatus for producing molten pig iron or molten steel preproducts, and sponge-iron hot pressing dough |
| 10/05/1999 | US5961055 Method for upgrading iron ore utilizing multiple magnetic separators |
| 09/29/1999 | EP0767242B1 Sintered ore manufacturing process |
| 09/29/1999 | CN1229855A Sulphuric acid dregs fritting furnace and sintering method thereof |
| 09/29/1999 | CN1045315C Method and appts. for used aluminum can recycling |
| 09/25/1999 | CA2261173A1 Treatment of steel mill waste metal oxides |
| 09/23/1999 | WO1999047714A1 Apparatus and methods for recovering valuable metals |
| 09/23/1999 | WO1999047281A1 Slimes treatment |
| 09/23/1999 | CA2324469A1 Slimes treatment |
| 09/22/1999 | CN2339587Y Carnallite boiling-dewatering apparatus |
| 09/22/1999 | CN1229144A Compound binder for pelletizing ore and technology thereof |
| 09/21/1999 | CA2144672C Method of treating fine ore |
| 09/15/1999 | CN1228478A Boron-magnesium compound additives and preparing method thereof |
| 09/15/1999 | CN1045111C Method for making quickline iron concentrate briquette agglomerate |
| 09/14/1999 | CA2080399C Counterflow air cooler for granular materials |
| 09/10/1999 | WO1999045158A1 Gold recovery process |
| 09/08/1999 | EP0866771B1 Iron sulphide compositions |
| 09/07/1999 | US5948137 Scrap metal measuring and weighing process and apparatus |
| 09/01/1999 | CN2335974Y Pretreatment device for extracting gold with high yield from gold concentrate contg high arsenic and high sulfur |
| 09/01/1999 | CN1227268A Gold-extracting cyanidation process decomposing primary gold ore in temperature controlling and oxygen admixing gas burning pyrolysis furnace |
| 08/25/1999 | CN1226603A Method for reducing reductive powdering rate of artificial rich minerals at low temperature |
| 08/18/1999 | CN1225947A Powder-material block-making method |
| 08/18/1999 | CN1044724C Sintering process for iron ore blend containing porous ores |
| 08/17/1999 | US5938128 Process and apparatus for treating composite elements |
| 08/10/1999 | US5935296 Forming a thermal shock resistant bonded solid by mixing a mineral or inorganic material, such as oxygen steelmaking sludge with a lignosulfate, treating with a cationic complexing agent, heating and adding urea to agglomerate |
| 08/05/1999 | WO1999039014A1 Method to lower the formation of clods and the clustering tendency of reducible iron containing agglomerated material, in particular pellets |
| 08/02/1999 | CA2222190A1 New synergistic binder composition |
| 07/29/1999 | WO1999037823A1 High efficiency recovery process and apparatus for the pyrolysis treatment and halogenation of multi-element waste |
| 07/28/1999 | CN1224064A Apparatus and process system for preheating of steel scrap for melting metallurgical furnaces with concurrent flow of scrap and heating gases |
| 07/22/1999 | WO1999036582A1 Method for microwave induced oxidation of sulphidic ores and ore concentrates without the production of sulphur dioxide gas |
| 07/21/1999 | EP0930373A1 Recovery of nickel and/or cobalt from a hydroxide concentrate with an ammonium leach solution |
| 07/21/1999 | CN1223304A Method for utilizing fine dust produced by ultrahigh power electric furnace steel-making |
| 07/13/1999 | US5922261 Process for recovering iron from iron-rich material |
| 07/08/1999 | WO1999034473A1 Recycling of galvanic cells |
| 07/08/1999 | CA2313173A1 Recycling of galvanic cells |
| 07/07/1999 | EP0927770A1 High carbon content iron-base briquettes and process for preparing same |
| 07/07/1999 | CN1221799A Steel particles briquetting |
| 07/01/1999 | WO1999032673A1 Process for treating a material containing metal and organic matter, including metal separation |
| 07/01/1999 | WO1999032260A1 Method of removing a metallic coating layer from scrap metal pieces |
| 06/30/1999 | CN2326326Y Striker device of rolling-type drum mixing-pelletizing machine |
| 06/29/1999 | US5916827 Briquette includes carbon fines, and a powder of an element or oxide selected from iron, iron oxide, chromium, chromium oxide, nickel, nickel oxide in larger quantity being sufficient to suppress slippery nature of carbon |
| 06/24/1999 | WO1999031286A1 Methods for treating ores |
| 06/24/1999 | CA2315163A1 Methods for treating ores |
| 06/24/1999 | CA2225980A1 Process for removing the refractory character of ashes containing coinage metals |
| 06/23/1999 | EP0924307A1 Solvent extraction of cobalt and nickel values from a magnesium containing solution |
| 06/23/1999 | EP0924304A1 Method of producing reduced iron pellets |
| 06/23/1999 | CN2325401Y Roasting rotary kiln with isolation |
| 06/23/1999 | CN1220705A Process for producing metallurgical raw material from oil containing heavy metals |
| 06/16/1999 | EP0922121A1 Process for reducing co and cos emissions from a fluidized bed reactor for chlorinating titanium containing material |
| 06/16/1999 | CN1219597A Binding method for slag iron powder |
| 06/16/1999 | CN1043665C Copper fine powdery agglomeration and preparing process thereof |
| 06/15/1999 | US5912403 Cold briquette of waste materials as an aggregate for smelting furnaces of an iron foundry and method of producing the same |
| 06/10/1999 | WO1999028513A1 Device and process system for preheating steel scrap |
| 06/09/1999 | CN1219208A Fluidized bed treatment of EAF dust |
| 06/02/1999 | EP0862657A4 Duplex procedure for the production of metals and metal alloys from oxidic metal ores |
| 05/27/1999 | WO1999025884A1 Method and unit for heat-treating fine-grained materials in a coarse-grained fluidized bed |
| 05/26/1999 | EP0865505B1 Process for hot briqueting granular sponge iron |
| 05/20/1999 | WO1999024627A1 Method for producing directly-reduced iron, liquid pig iron and steel |
| 05/20/1999 | WO1999024158A1 Binder formulation used in forming mineral pellets |
| 05/20/1999 | CA2309606A1 Method for producing directly-reduced iron, liquid pig iron and steel |
| 05/19/1999 | EP0916742A1 Method of producing iron oxide pellets with low bentonite content |
| 05/19/1999 | EP0915994A1 "waelz" method for processing of zinc containing materials in pelletized form |
| 05/19/1999 | EP0915993A1 Fluidized bed treatment of eaf dust |
| 05/19/1999 | EP0882141A4 Direct ironmaking or steelmaking apparatus using self-reducing iron oxide pellets |
| 05/14/1999 | WO1999022870A1 Method for upgrading iron ore utilizing multiple magnetic separators |
| 05/13/1999 | CA2250530A1 Ore pelletisation |
| 05/11/1999 | US5902474 Chloride assisted hydrometallurgical extraction of metal |
| 05/06/1999 | WO1999022036A1 Method for opening up materials containing noble metals by chloridization with uv radiation |
| 05/06/1999 | EP0912771A1 Process for producing a metallurgical raw material from oil containing heavy metals |
| 05/06/1999 | EP0912770A1 Process for heat treatment of organically contaminated material |
| 05/06/1999 | DE19748144A1 Method for producing basis elements out of metal chips for melting processes |
| 05/05/1999 | CN1043246C Sintered ore mfg. method using high crystalline iron ore as raw material |
| 05/04/1999 | US5900040 Roasting of titaniferous materials |
| 04/30/1999 | CA2251339A1 Method of producing iron oxide pellets |