| Patents for C01G 37 - Compounds of chromium (1,613) |
|---|
| 03/17/1998 | US5728362 Method of producing a mixed metal oxide powder and mixed metal oxide powder produced according to the method |
| 02/04/1998 | CN1037259C Method for preparation of sodium dichromate |
| 01/14/1998 | EP0818040A1 Magnetic recording media |
| 01/07/1998 | EP0815055A1 Yttrium and/or rare earths aluminates having perovskite structure, preparation thereof and use as pigments |
| 01/06/1998 | US5705132 Combustion synthesis continuous flow reactor |
| 12/24/1997 | WO1997048641A1 Process of making fine ceramic powders from aqueous suspensions |
| 12/24/1997 | CA2286150A1 Process of making fine ceramic powders from aqueous suspensions |
| 12/17/1997 | EP0703873B1 Refractory oxides and method for their production |
| 11/26/1997 | CN1165782A Method for preparing superfined Cr2O3 |
| 11/19/1997 | CN1165380A Ferroelectric element and method of producing the same |
| 11/18/1997 | US5688480 Roastinf a mixture of metal elements to form oxides in hydrogen halide and halogen |
| 11/12/1997 | EP0806396A1 Process for the preparation of metal disulfides and further processing thereof to dimetal trisulfides |
| 10/22/1997 | EP0801980A1 Catalyst for the fluorination of halogenated hydrocarbons |
| 09/24/1997 | CN1035956C Coating method, workpiece with hard coating and use thereof |
| 09/17/1997 | EP0795898A2 Ferroelectric element and method of producing the same |
| 09/16/1997 | US5667759 Injecting oxygen through below-bed nozzles |
| 09/10/1997 | CN1158822A Prepn. of dichromium trioxide by carbon reduction process and comprehensive recovery |
| 08/27/1997 | EP0791560A2 Refractory oxides |
| 08/06/1997 | EP0660750B1 Process for treating a spent chromium-based fluorination catalyst. |
| 07/16/1997 | EP0783921A2 Method of and apparatus for performing continuous hydrothermal synthesis |
| 07/16/1997 | EP0670819B1 Air-sinterable lanthanum chromite and process for its preparation |
| 07/02/1997 | CN1153142A Method for preparation of sodium chromate chamotte |
| 06/25/1997 | EP0670820B1 Fluxed lanthanum chromite for low temperature air firing |
| 05/28/1997 | CN1150790A Process for preparing precipitate of perovskite composite oxide |
| 05/06/1997 | US5627295 Synthesis of higher alcohols |
| 04/17/1997 | WO1997013721A1 Method of producing inorganic aerogels under subcritical conditions |
| 04/17/1997 | DE19538333A1 Verfahren zur unterkritischen Herstellung von Aerogelen A process for the preparation of aerogels subcritical |
| 04/02/1997 | CN1146430A Detoxication utilization for barium and chromium slag |
| 03/19/1997 | EP0762930A1 Absorbent and process for removing sulfur oxides from a gaseous mixture |
| 03/12/1997 | EP0761601A1 Process for preparing precipitate of perovskite composite oxide |
| 01/07/1997 | US5591418 Process for removing sulfur oxides or nitrogen oxides from a gaseous mixture |
| 12/27/1996 | WO1996041767A1 Process for producing pure ammonium metallates |
| 12/27/1996 | WO1996041679A1 Treatment of chromium oxide and catalytic manufacture of vinyl fluoride |
| 12/27/1996 | CA2224268A1 Process for producing pure ammonium metallates |
| 12/19/1996 | DE19521332A1 Verfahren zur Herstellung reiner Ammoniummetallate Process for the preparation of pure ammonium metallates |
| 11/05/1996 | US5571489 Forming chromyl chloride, hydrolysis, forming chromate salt, treating wastes from electroplating |
| 10/30/1996 | CN1134395A Method of producing mixed metal oxide powder and mixed metal oxide powder producing according to the method |
| 10/29/1996 | US5569409 Finely divided acicular magnetic modified chromium dioxide |
| 10/03/1996 | WO1996030900A1 Magnetic recording media |
| 10/03/1996 | CA2215259A1 Magnetic recording media |
| 09/19/1996 | WO1996028386A1 Process for preparing precipitate of perovskite composite oxide |
| 09/19/1996 | WO1996028384A1 Yttrium and/or rare earths aluminates having perovskite structure, preparation thereof and use as pigments |
| 09/19/1996 | DE19509575A1 Working up waste mixt. to separate zinc and chromium fractions |
| 09/18/1996 | CN1032806C Method and device for prepn. of alkali metal chromates from chromium minerals |
| 08/21/1996 | EP0727836A1 Method of forming a plasma sprayed interconnection layer on an electrode of an electrochemical cell |
| 06/27/1996 | DE19546644A1 Redn. of chromium-(VI) cpds. to chromium-(III) cpds. in aq. soln. |
| 05/08/1996 | CN1121944A Coloured pigments based on oxide-nitrides, the preparation and use thereof |
| 04/09/1996 | US5505918 Controlled heating, oxidation |
| 04/04/1996 | DE4434768A1 Prodn. of magnetic dispersion, e.g., for video-tape mfr. |
| 04/03/1996 | EP0703873A1 Refractory oxides and method for their production |
| 03/27/1996 | EP0703188A1 Method of producing a mixed metal oxide powder and mixed metal oxide powder produced according to the method |
| 02/21/1996 | EP0697373A1 Oxynitride-based coloured pigments and process for their preparation |
| 02/14/1996 | CN1116610A Process for extracting sodium bichromate and copper nitrate from waste catalyst from preparation of furfuryl alcohol by hydrogenation of furfural |
| 01/24/1996 | EP0527811B1 A process and plant for the preparation of alkaline chromates from chromium minerals |
| 01/23/1996 | CA1337981C Processes for the preparation of alkali metal dichromates and chromic acid |
| 01/16/1996 | US5484750 Having cubic garnet crystal structure; use in high speed computed tomography scanning systems for medical use |
| 01/09/1996 | US5482690 Low-residue high-extraction production of sodium dichromate |
| 01/03/1996 | EP0689478A1 Synthesis of higher alcohols |
| 01/03/1996 | CN1114503A Metal oxide powder and process for producing the same |
| 01/03/1996 | CN1114502A Composite metal oxide powder and process for producing the same |
| 12/26/1995 | US5478539 Solvent extraction by complexing the metal oxyanion with a benzimidazole |
| 12/26/1995 | CA1337808C Process for the preparation of chromic acid |
| 12/26/1995 | CA1337807C Processes for the preparation of alkali metal dichromates and chromic acid |
| 12/26/1995 | CA1337806C Process for the production of alkali dichromates and chromic acid |
| 12/20/1995 | EP0687650A1 Process and apparatus for the melt-metallurgical preparation of hard materials |
| 12/14/1995 | DE4420496A1 Molten metallurgical mfr. of hard materials or oxide(s) |
| 12/07/1995 | WO1995032797A1 Absorbent and process for removing sulfur oxides from a gaseous mixture |
| 11/28/1995 | US5470494 Oxide type solid lubricant |
| 10/19/1995 | DE4412611A1 Prepn. of finely-divided ferromagnetic chromium di:oxide, useful in magnetic recording |
| 10/10/1995 | CA1337243C Process for the recovery of metal values from an aqueous solution using imidazoles of a selected formula |
| 09/27/1995 | CN1109026A Method for manufacturing alkali chromates from chromium ore |
| 09/20/1995 | EP0672621A1 Process for reducing the iron content of a chromium-containing electrolyte |
| 09/13/1995 | EP0670820A1 Fluxed lanthanum chromite for low temperature air firing. |
| 09/13/1995 | EP0670819A1 Air-sinterable lanthanum chromite and process for its preparation. |
| 09/05/1995 | US5447804 Hard coating; a workpiece coated by such hard coating and a method of coating such workpiece by such hard coating |
| 08/23/1995 | CN1107130A Conversion coatings on silicon carbide |
| 08/15/1995 | CA2142408A1 Method of forming a plasma sprayed interconnection layer on an electrode of an electrochemical cell |
| 08/09/1995 | EP0666239A1 Composite metal oxide powder and process for producing the same |
| 08/09/1995 | EP0666238A1 Metal oxide powder and process for producing the same |
| 07/05/1995 | EP0660750A1 Catalyst production for use in a process for fluorination of hydrocarbons. |
| 06/28/1995 | CN1104258A Calcium-less granulating roasting chrominm salt production technology |
| 06/27/1995 | US5427692 Removal of chromium from solution using ferrous sulfate and barium nitrate |
| 06/22/1995 | DE4342909A1 Verfahren zur Aufarbeitung von chromhaltigem Natriumhydrogensulfat The method for the reprocessing of chromium containing sodium hydrogen sulfate |
| 06/20/1995 | US5426083 Anionic layered mixed hydroxide clay |
| 06/20/1995 | US5426003 Method of forming a plasma sprayed interconnection layer on an electrode of an electrochemical cell |
| 05/24/1995 | DE4339841A1 Finely divided needle-like magnetic chromium di:oxide |
| 05/23/1995 | US5418012 Pack cementation; carbiding chromium |
| 05/16/1995 | US5415848 Reducing chromium with ferrous sulfate and precipitation with barium nitrate |
| 05/16/1995 | US5415847 Treatment of pit waste containing chromated copper arsenate |
| 04/06/1995 | DE4434454A1 Process for the preparation of alkali metal chromates from chromium ore |
| 04/06/1995 | DE4333349A1 Verfahren zur Herstellung von Alkalichromaten aus Chromerz A process for preparing alkali chromates from chromium ore |
| 03/14/1995 | US5397657 Method for increasing the electrical conductivity of a thermal sprayed interconnector for a solid electrolyte fuel cell |
| 03/08/1995 | CN1099727A Making method for basic chromium sulfate |
| 03/07/1995 | US5395601 Re-calcination and extraction process for the detoxification and comprehensive utilization of chromic residues |
| 02/28/1995 | US5393503 Reacting sodium chromate and sulfuric acid producing sodium bichromate, and sodium sulfate. sodium bichromate reacts with sulfuric acid forming chromic acid and sodium bisulfate, sulfuric acid is regenerated for reuse |
| 02/21/1995 | US5391266 Method of regulating the throughput in the electrochemical regeneration of chromosulfuric acid |
| 02/16/1995 | WO1995004701A1 Composite metal oxide powder and process for producing the same |
| 02/16/1995 | WO1995004700A1 Metal oxide powder and process for producing the same |
| 02/16/1995 | CA2146749A1 Complex metal oxide powder and method for the production of the same |
| 02/16/1995 | CA2146539A1 Metal oxide powder and method for the production of the same |