| Patents for C01B 25 - Phosphorus; Compounds thereof (12,526) |
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| 12/16/1997 | US5698758 Aluminum phosphate composition with high pore volume and large pore diameter, process for its production and use thereof |
| 12/16/1997 | US5698265 Calcium phosphate compound-cellulose fiber composite material and method for production thereof |
| 12/10/1997 | EP0621801B1 Aminoalkylphosphonic acid containing ligands attached to solid supports for removal of metal ions |
| 12/10/1997 | CN2270042Y Equipment for recovering yellow phosphorus from phosphorus sludge and slag |
| 12/10/1997 | CN1167086A Vanadium-phosphorus oxide, method for production thereof, catalyst for vapor phase oxidation formed of oxide, and method for partial vaporphase oxidation of hydrocarbon |
| 12/10/1997 | CN1167076A Nonlinear optical crystal-magnesium niobic phosphate |
| 12/09/1997 | US5695729 Comminuted tetracalcium phosphate free of calcium oxide and surface impurities; bone and teeth remineralization, high strength, quick-setting |
| 12/03/1997 | EP0810683A1 Removal of ammonia from a reformed fuel gas stream and replenishing acid electrolyte in a phosphoric acid fuel cell |
| 12/02/1997 | US5693597 Antiwear, extreme pressure oil additives |
| 12/02/1997 | US5693303 Exothermic reaction of calcium oxide and a predetermined amount aqueous solution of phosphoric acid in a soluble condensed molasses |
| 11/26/1997 | CN1165780A Purification of wet process phosphoric acid for preparing zinc phosphate |
| 11/25/1997 | US5691397 Removal of biomass |
| 11/25/1997 | US5690908 Magnetic resonance imaging |
| 11/19/1997 | CN1165130A Method for preparing sulfonyl azophoska compound fertilizer |
| 11/19/1997 | CN1165112A Constant temp. polymerization technology for food grade soldium-trimeta phosphate |
| 11/12/1997 | CN1164508A Preparation of zinc phosphate by liquid-liquid heterogeneous reaction |
| 11/04/1997 | US5683667 Reactive tricalcium phosphate compositions |
| 11/04/1997 | US5683461 Injectable paste |
| 10/30/1997 | WO1997040541A1 Cathode materials for secondary (rechargeable) lithium batteries |
| 10/30/1997 | CA2803760A1 Cathode materials comprising rhombohedral nasicon for secondary (rechargeable) lithium batteries |
| 10/28/1997 | US5682593 Extraction of acids and metal salts from aqueous solutions with diethyl dodecylphosphonate |
| 10/22/1997 | CN1162566A Fluorine removal process for producing phosphate as forage from phosphoric acid produced by wet method |
| 10/16/1997 | WO1997037932A1 Process for producing a ceramic material based on calcium phosphate compounds and use of this material |
| 10/15/1997 | EP0695218A4 Vanadium-containing nasicon materials |
| 10/14/1997 | US5678242 Contacting aqueous solution of metal ions with one side of porous membrane having organic soluble complexing agent in pores to extract metal ions, contacting other side with aqueous solution of second complexing agent to remove |
| 10/14/1997 | US5676997 From phosphorus compound, calcium salt and chelate compound |
| 10/14/1997 | US5676976 Precipitating carbonated amorphous calcium phosphate from aqueous solution comprising calcium, phosphate and carbonate ions, heating to remove atleast a portion of residual water and a portion of carbonate ion to retain amorphous character |
| 10/14/1997 | US5676917 Synthesis of beta phase spherical calcium pyrophosphate powder |
| 10/09/1997 | WO1997027157A3 Method for the preparation of sodium ammonium phosphate |
| 10/08/1997 | EP0799795A2 Vanadium-phosphorus oxide, method for production thereof, catalyst for vapor phase oxidation formed of the oxide, and method for partial vapor phase oxidation of hydrocarbon |
| 10/08/1997 | EP0701532A4 Controlled release potassium divalent metal phosphate fertilizer |
| 10/08/1997 | CN1161305A Method for preparing hydroxy phosphatic rock |
| 10/01/1997 | CN1160675A Sulphur-economizing ammonium phosphate-producing slurry process |
| 09/24/1997 | EP0708969B1 Method for encapsulating radioactive waste using phosphosilicated apatites as the confining matrix |
| 09/24/1997 | CN1160018A Process for preparing phosphoric acid and phosphate by melting reduction heat method |
| 09/24/1997 | CN1160017A Process for preparing nm phosphide and nitride by heat synthesis in organic solvent |
| 09/23/1997 | US5670126 Iron salts with iodine or sulfate, agitation with phosphorous |
| 09/18/1997 | WO1997033693A1 Crystalline metallophosphates |
| 09/18/1997 | WO1997033692A1 Crystalline metallophosphates |
| 09/18/1997 | CA2248656A1 Crystalline metallophosphates |
| 09/17/1997 | CN1035869C Method for preparation of ball shaped hydroxy-apatite with homogeneous precipitation |
| 09/16/1997 | US5667836 Mixtures with sodium bicarbonate for baking |
| 09/16/1997 | US5667761 Spray drying and firing dicalcium orthophosphate, purity |
| 09/10/1997 | EP0794151A1 Novel metal ion-exchanged phosphorusvanadium compound and solid acid catalyst using the compound |
| 09/10/1997 | CN2262035Y Deflector-type wet phosphoric acid extracting bath |
| 09/09/1997 | US5665324 Producing hydroxyapatite |
| 09/02/1997 | US5663471 Methanol to olefin catalyst |
| 09/02/1997 | US5663402 Reaction of alcohol with sulfur and white phosphorous to form dialkyl phosphorodithioic acid |
| 08/27/1997 | EP0541687B1 Intimate mixture of calcium and phosphate sources as precursor to hydroxyapatite |
| 08/26/1997 | US5660808 Dissolving di- and monosodium orthophosphate; drying; calcining with temperature reduction; potassium-free |
| 08/19/1997 | CA1339302C High purity bone mineral |
| 08/13/1997 | EP0619800B1 Procedure for synthesis of crystalline microporous silico-alumino-phosphates |
| 08/07/1997 | WO1997028086A1 A method for extracting antimony from elemental phosphorus |
| 07/31/1997 | WO1997027157A2 Method for the preparation of sodium ammonium phosphate |
| 07/30/1997 | CN1155513A Method for producing calcium hydrophosphate and monocalcium phosphate as feeds |
| 07/30/1997 | CN1035504C Method for preparing dihydrate tripolyphosphate aluminium dihydride |
| 07/29/1997 | US5652056 Hydroxyapatite filament |
| 07/29/1997 | US5652016 Apatite coating |
| 07/23/1997 | EP0784594A1 Method for making phosphated alkaline salts, resulting salts and silicas, and detergent or foodstuff containing such salts |
| 07/23/1997 | CN1155269A Synthetic mineral microparticles for retention aid system |
| 07/22/1997 | US5650176 Heat treatment for decarbonation and dehydration of calcium phosphate precipitate to form apatite |
| 07/22/1997 | US5649894 Compositions and methods for waste treatment |
| 07/17/1997 | DE19601081A1 Mixed di-and/or trivalent metal ortho- or pyro-phosphate |
| 07/16/1997 | EP0784071A1 Calcium-base filler and process for producing the same |
| 07/16/1997 | EP0643556A4 Formulations, method and apparatus for the controlled generation of phosphine. |
| 07/16/1997 | CN1154350A Art for phosphoric ore secondary decomposition by using extracted phosphoric acid |
| 07/09/1997 | EP0782979A1 Carbonylation catalyst |
| 07/09/1997 | CN1153742A Out-reactor dilution of sulfuric acid in wet process producing phosphoric acid |
| 07/09/1997 | CN1153741A Composition for producing phosphine-containing gas |
| 07/08/1997 | US5646972 Process for the treatment of natural apatites with a view to the use thereof for storing irradiated fuel elements |
| 07/02/1997 | EP0781605A1 Removal of metal compounds from an acid solution |
| 07/02/1997 | CN1153137A Method for producing toothpaste grade calcium hydrophosphate |
| 07/02/1997 | CN1035321C Technique for producing active calcium phosphate |
| 06/28/1997 | CA2193778A1 Removal of metal compounds from an acid solution |
| 06/25/1997 | CN1152545A Technology and equipment for recovering yellow phosphorus from phosphorus sludge |
| 06/04/1997 | CN1150939A Process and apparatus for producing phosphine-containing gas |
| 05/28/1997 | EP0775096A1 Glass fiber tacking agent and process |
| 05/28/1997 | EP0775088A1 Synthetic mineral microparticles for retention aid systems |
| 05/28/1997 | DE19543803A1 Production of copper hydroxide phosphate |
| 05/28/1997 | CN1150550A Preparing fertilizer containing silicon, calcium, phosphorus and potassium and phosphoric acid by lean mud phosphorus hot air incinerator |
| 05/22/1997 | WO1997018341A1 Nanostructured feeds for thermal spray |
| 05/22/1997 | CA2237588A1 Nanostructured feeds for thermal spray |
| 05/15/1997 | WO1997017285A1 Low temperature calcium phosphate apatite and a method of its manufacture |
| 05/14/1997 | EP0772975A2 Microbes-removing material |
| 05/07/1997 | EP0742850A4 Method of synthesizing iii-v semiconductor nanocrystals |
| 05/06/1997 | CA2036731C Process for the production of granulated dicalcium phosphate dihydrate |
| 05/01/1997 | WO1997015527A1 Method for producing crystalline trisodium phosphate hydrates |
| 04/23/1997 | EP0768985A1 Process for the purification of phosphoric acid |
| 04/23/1997 | CN2252804Y Phosphorus steaming appts. |
| 04/10/1997 | WO1997012836A1 Method for preparing nickel hypophosphite |
| 04/10/1997 | CA2231065A1 Method for preparing nickel hypophosphite |
| 04/02/1997 | CN1146427A Production method for fodder grade calcium hydrogen phosphate |
| 04/02/1997 | CN1146426A Production method for fodder grade calcium phosphate |
| 04/02/1997 | CN1146425A Production method for fodder grade calcium hydrogen phosphate |
| 03/26/1997 | EP0735983A4 Preparation of lithium hexafluorophosphate solutions |
| 03/26/1997 | CN1145876A Process for producing calcium phosphate by sintering and defluorination in kilns |
| 03/20/1997 | WO1997010175A1 Process for preparing a nanocrystalline material |
| 03/19/1997 | EP0539517B1 Crystalline molecular sieve composition |
| 03/13/1997 | WO1997009465A1 Electrolytic production of hypophosphorous acid |
| 03/13/1997 | WO1997009270A1 Process for preparing hemipotassium phosphate |