| Patents for C01G 49 - Compounds of iron (8,643) |
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| 09/23/1999 | DE19812261A1 Production of gypsum and iron oxide pigments from dilute acid formed in the manufacture of titanium dioxide |
| 09/23/1999 | DE19812260A1 Production of iron oxide pigments from dilute acid formed in manufacture of titanium dioxide |
| 09/22/1999 | CN1229528A Lithium manganese oxy-floor ides for Li-ion rechargeable battery electrodes |
| 09/21/1999 | US5955220 Lithium iron oxide, method of its synthesis, and lithium battery using the same |
| 09/15/1999 | EP0941966A2 Acicular hematite particles and magnetic recording medium |
| 09/15/1999 | EP0646185B1 Production of metals from minerals |
| 09/15/1999 | CN1228390A Water purifying agent by oxygen polymerization one-step method |
| 09/15/1999 | CN1045136C Super-fine magnetic powder and its prepn. method |
| 09/15/1999 | CN1045135C Gama Fe2O3 magnetic powder prepn. method |
| 09/08/1999 | EP0940369A2 Spindle-shaped goethite particles and process for producing the same |
| 09/08/1999 | CN1227977A Electrochemical reactor cell for reacting oxygen-consuming gas with oxygen-containing gas |
| 09/08/1999 | CN1227976A Electrochemical process for oxidizing gas capable of reacting with oxygen |
| 09/07/1999 | US5948565 Cathode material for lithium secondary batteries and a process and a precursor material for the production thereof |
| 09/02/1999 | WO1999043408A1 Solvent extraction of ferric chloride |
| 09/02/1999 | CA2318823A1 Solvent extraction of ferric chloride |
| 09/01/1999 | CN1227190A Calcium-iron oxide composite particles and resin molded product containing the same |
| 08/19/1999 | WO1999041189A1 Treatment of iron chloride from chlorination dust |
| 08/18/1999 | EP0936687A2 Lithium intercalating transition metal oxide, electrode structure, production processes thereof, and secondary lithium battery |
| 08/17/1999 | CA2150772C Ultraviolet-protecting cosmetic compositions made of a synergetic mix of filters and nanopigments, and uses thereof |
| 08/11/1999 | CN1044575C Apparatus for selecting waste bottles |
| 08/10/1999 | US5935545 Process for producing an aqueous solution comprising ferric chloride |
| 07/29/1999 | WO1999038174A1 Bonded magnet, magnet roll and ferrite powder to be used for their preparation, and method for producing the same |
| 07/29/1999 | WO1999037719A1 Process for the production of black iron oxide pigments |
| 07/29/1999 | CA2318638A1 Process for the production of black iron oxide pigments |
| 07/28/1999 | EP0931855A1 Production of hydrogen from water using photocatalyst-electrolysis hybrid system |
| 07/28/1999 | EP0931779A1 Ferrite, and transformer and method for driving it |
| 07/28/1999 | CN1224224A Ferrite, and transformer and method for driving it |
| 07/28/1999 | CN1224223A Method for producing composite oxides for use as starting materials for ferrites |
| 07/28/1999 | CN1224081A Electrocatalytic process for gas clean-up |
| 07/28/1999 | CN1224080A Electrochemical reactor for reacting oxygen-consuming gas with oxygen-containing gas |
| 07/28/1999 | CN1223966A Method for preparing high-temp. resistant iron oxide red |
| 07/27/1999 | US5928619 Treating exhaust gases from internal combustion engines |
| 07/21/1999 | CN1223233A Process for producing iron oxide red by using waste residue of sulfuric acid |
| 07/20/1999 | CA2174239C Photoassisted oxidation of species in solution |
| 07/14/1999 | EP0928775A2 Acicular hematite particles and magnetic recording medium |
| 07/14/1999 | EP0827488B1 Reduction of residual chloride in iron oxides |
| 07/07/1999 | CN1221812A Element for use in electrochemical reactor or reactor cell |
| 07/07/1999 | CN1221811A Electrochemical process for producing unsaturated hydrocarbon compounds from stauarated hydrocarbon compound |
| 07/07/1999 | CN1043986C Polyoxyl sulfato ferrate (bauxite) and its prepn. method |
| 07/06/1999 | CA2133642C Process for producing single phase magnetite powder |
| 07/06/1999 | CA2071452C Magnetic toner |
| 06/30/1999 | EP0926099A1 Magnetite particles and process for production thereof |
| 06/30/1999 | EP0926098A1 Calcium-iron oxide composite particles and resin molded product containing the same |
| 06/30/1999 | EP0783459B1 Ternary lithium mixed oxides, process for their preparation and their use |
| 06/30/1999 | CN1221011A Iron oxide yellow pigments, method of producing iron oxide yellow pigments and the use thereof |
| 06/29/1999 | US5916360 Precipitating the iron compound from the aqueous solution containing atleast one aliphatic amine and ferrous chloride with alkaline compound, oxidizing the precipitated iron compound with an oxidizer |
| 06/24/1999 | WO1999031745A1 Mesostructural metal oxide materials useful as an intercalation cathode or anode |
| 06/23/1999 | CN1220290A Heat-stable iron oxide yellow pigments |
| 06/22/1999 | US5914293 Absorbent and process for removing sulfur oxides from a gaseous mixture |
| 06/17/1999 | WO1999029628A1 Alkali metal ferrates and a method of making the same |
| 06/16/1999 | CN1219507A One-step production technique for ferric polysulfate solid water purifier |
| 06/15/1999 | US5911967 Process and apparatus for production of ferric oxide from iron chloride solutions |
| 06/15/1999 | US5911905 Processes for producing hydrated iron oxide and ferromagnetic iron oxide |
| 06/09/1999 | EP0853648B1 Method for preparing inorganic pigments, resulting inorganic pigments, and apparatus therefor |
| 06/02/1999 | EP0919522A1 Acicular hematite particles for non-magnetic undercoat layer of magnetic recording medium |
| 05/26/1999 | EP0918076A2 Non-silking yellow iron oxide pigments with high variegation |
| 05/26/1999 | EP0918075A2 Heat stable yellow iron oxide pigments |
| 05/25/1999 | CA2089950C Sunscreen agents |
| 05/19/1999 | EP0917222A2 Method of producing double oxide film, double oxide/metal composite body, double oxide film and functional conductive material |
| 05/19/1999 | CA2254179A1 Heat-stable iron oxide yellow pigments |
| 05/14/1999 | WO1999022870A1 Method for upgrading iron ore utilizing multiple magnetic separators |
| 05/12/1999 | EP0914683A1 Positive electrode for lithium battery |
| 05/12/1999 | EP0726878B1 Process for making goethite |
| 05/12/1999 | CN1216517A Process for the preparation of water purification solutions containing ferric iron and the use of the product as of obtained |
| 05/11/1999 | US5902676 Coating type magnetic recording medium having a multilayer structure |
| 05/11/1999 | US5902498 Methods of joining metal components and resulting articles particularly automotive torque converter assemblies |
| 05/11/1999 | CA2112076C Process for purifying a technical iron chloride solution by selective precipitation |
| 05/06/1999 | EP0737167B1 Process for the preparation of a sulfate- and hydroxide-based ferric compound |
| 05/06/1999 | DE19747917A1 Metal-contaminated hydrochloric acid is processed to produce near-azeotropic hydrochloric acid product |
| 05/04/1999 | US5900313 Thermoplastic or thermosetting resin with 0.1-10 wt % of ferric oxide hydroxide particles that are spindle, aricular, or plate-shaped, low sulfur, sodium content; generate less ash on incineration |
| 05/04/1999 | CA2185762C Process for the recovery of waste sulphuric acid |
| 04/28/1999 | EP0911370A1 Yellow iron oxide pigments, process for its preparation and its use |
| 04/28/1999 | EP0911369A1 Red iron oxide pigments, process for its preparation and its use |
| 04/28/1999 | CN1215027A Iron oxide red, its production method and use |
| 04/21/1999 | CN1214716A Process for preparing agglomerate-free nanoscalar iron oxide particles with hydrolysis-resistant coating |
| 04/20/1999 | CA2251428A1 Iron oxide yellow pigments, a method of producing iron oxide yellow pigments and the use thereof |
| 04/20/1999 | CA2251425A1 Iron oxide red pigments, process for the production of iron oxide red p igments and use thereof |
| 04/14/1999 | EP0908227A1 Coated membranes |
| 04/13/1999 | US5894016 Reacting the mixture of tin, a second metal or metal sulfide with a superstoichiometric quantity of solid phase sulfur with ammonium or tin chloride as an exothermic reaction to form mixed sulfide or tin sulfide in pressureless condition |
| 04/08/1999 | WO1999016712A1 Method for treating waste stripping solutions |
| 04/07/1999 | CN1212959A Technology for preparing plane haxagon structural soft ferrimagnetics high activity superfine powder by gel method |
| 04/01/1999 | WO1999015189A1 Metal compounds, mixed or sulphated, as phosphate binders |
| 03/31/1999 | EP0905089A1 Process for treating spent pickling bath solutions |
| 03/31/1999 | EP0905088A1 Magnetite particles and process for production thereof |
| 03/31/1999 | CN1212629A Contrast media |
| 03/31/1999 | CN1212236A Method for producing magnesium oxide and iron oxide red by using metal gangue containing magnesium and iron |
| 03/30/1999 | CA2063075C Autogenous roasting of iron ore |
| 03/25/1999 | WO1998048921A9 Autothermic reactor comprising oxygen ion conducting dense ceramic membrane and process using the autothermic reactor for producing synthesis gas |
| 03/24/1999 | CN1042626C Process for preparing ultra thin hexagonal crystal system ferrite |
| 03/23/1999 | US5885740 Magnetite particles, a process for producing them and applications thereof |
| 03/23/1999 | US5885545 Highly transparent, yellow iron oxide pigments, process for the production thereof and use thereof |
| 03/09/1999 | US5879441 Very highly transparent yellow iron oxide pigments, a process for their production and their use |
| 03/04/1999 | DE19839382A1 Rare earth type oxide ion conductor |
| 03/03/1999 | CN1209789A Nanostructured oxides and hydroxides and method of synthesis therefor |
| 03/02/1999 | US5876618 Magnetic; microwave frequency |
| 03/02/1999 | US5876581 Film of iron (III) hexacyanoferrate (II) and process of synthesizing same |
| 02/18/1999 | WO1998050142A3 Process for regulating a circulating fluidised bed and use of the process |
| 02/17/1999 | CN1208020A Oxide modifying process to prepare low temperature sintered planar hexagonal ferrite |
| 02/17/1999 | CN1208019A Liquid phase process producing ferric oxide, potassium sulfate and ammonium chloride |
| 02/03/1999 | EP0655948B1 Preparation of solid state materials |