Patents
Patents for C01B 25 - Phosphorus; Compounds thereof (12,526)
11/1999
11/30/1999US5993768 Pyrophosphate-phosphate of zirconium, titanium or tin; preparation by calcining metal organodiphosphonate
11/30/1999US5993767 Solvate of lithium hexafluorophosphate and pyridine, its preparation and preparation process for lithium hexafluorophosphate using said solvate
11/30/1999US5993609 Process for the purification of phosphorus oxychloride
11/30/1999CA2158561C Isolation of the calcium-phosphate crystals of bone
11/30/1999CA2101456C Process for preparation of rare earths phosphates and products thereof
11/24/1999EP0958240A1 New aluminophosphates and their method of preparation
11/23/1999US5989509 Method for extracting antimony from elemental phosphorous
11/23/1999US5989508 Liquid medium extraction purification method
11/18/1999WO1999058447A1 Hydroxyapatite, composite, processes for producing these, and use of these
11/17/1999EP0956263A1 Process for removing acids from lithium salt solutions
11/10/1999CN1234368A Defluorination agent for production of fodder-grade calcium hydrophosphate and use method thereof
11/09/1999US5980856 Adsorbing agents of acidic substances, anion exchangers, infrared absorption agents for agricultural films, deodorants and recording media for ink jet
11/09/1999CA2006076C Stabilized red phosphorus, and a process for the preparation thereof
11/04/1999WO1999043612A8 Process and apparatus for preparation of phosphorus oxyacids from elemental phosphorus
11/03/1999EP0952959A1 Polyhalophosphazene solutions stable against gelation
11/03/1999CN1046119C Polyphosphate compound salt and method for producing same
10/1999
10/28/1999WO1999054257A1 Inorganic composition, process of preparation and method of use
10/27/1999EP0951441A1 Silicon-substituted apatites and process for the preparation thereof
10/27/1999EP0761756B1 Stabilizer for halogen-containing resins and process for the preparation thereof, halogen-containing resin composition, and composite hydroxide salt
10/27/1999CN1232785A Compositely heating horizontal-chamber furnace for indirectly heated solid-phase reaction to prepare phosphorus element
10/27/1999CN1045947C Method for producing sulfonyl azophoska compound fertilizer
10/26/1999US5973194 Process for preparing dialkylphosphinate salts
10/26/1999US5972175 Producing ethylene with minimal acetylene by-product formation using amorphous carbon supported metal catalyst without supplying hydrogen to reactor
10/13/1999EP0949198A1 Apatite slurry and process for the preparation thereof
10/13/1999EP0948506A1 Cyanophosphonate derivatives
10/13/1999EP0948326A2 Method for preparing cyanophosphonate derivatives from phosphoric anhydride and cyanide
10/13/1999CN1231265A Process for preparing potassium dihydrogen phosphate and boric acid
10/13/1999CN1045576C Process for preparing industrial ammonium phosphate and series compound fertilizer
10/06/1999EP0946412A1 A microporous crystalline silico-alumino-phosphate composition, catalytic material comprising said composition and use of these for production of olefins from methanol
10/06/1999CN1045423C Method for producing feed calcium hydrogen phosphate
10/05/1999US5962028 Carbonated hydroxyapatite compositions and uses
09/1999
09/30/1999WO1999048809A1 Method for preparing a biomaterial based on hydroxyapatite, resulting biomaterial and surgical or dental use
09/29/1999EP0944550A1 LiPF 6 PRODUCTION PROCESS
09/28/1999US5959124 Subjecting butane to partial vapor phase oxidation with a molecular oxygen containing gas in presence of vandium-phosphorus oxide catalyst having specific x-ray diffraction spectrum
09/28/1999US5958977 Phosphoric acid-amino acid complex salt and additive composition containing the salt and used in feed for ruminant mammals
09/21/1999US5955047 Heating a solution of solvent, alkali metal ions, phosphate ions with organic matter and air
09/15/1999EP0701532B1 Controlled release potassium divalent metal phosphate fertilizer
09/14/1999US5953678 Thorium phosphates, method for preparing same, and use thereof for storing radioactive materials
09/14/1999US5952010 Paste compositions capable of setting into carbonated apatite
09/14/1999US5951958 Method for the preparation of rare earth phosphate of low overstoichiometric phosphorous content
09/14/1999US5951831 Microwave radiation to heat phosphoric acid or it's salts to activate the polymerization, forming inorganic polyphosphoric acid
09/10/1999WO1999044941A1 Method for producing highly pure lithium salts
09/10/1999CA2322544A1 Method for producing highly pure lithium salts
09/09/1999DE19809420A1 Verfahren zur Herstellung von hochreinen Lithiumsalzen A process for producing high purity lithium salts
09/02/1999WO1999043612A1 Process and apparatus for preparation of phosphorus oxyacids from elemental phosphorus
09/02/1999CA2322740A1 Process and apparatus for preparation of phosphorus oxyacids from elemental phosphorus
09/01/1999EP0938449A1 Method for producing a suspension of hydroxylapatite
09/01/1999EP0938268A1 Edible preservative and acidulant composition
08/1999
08/31/1999US5945000 Nanofiltration
08/31/1999US5944879 Nickel hypophosphite solutions containing increased nickel concentration
08/18/1999EP0688202B1 Calcium phosphate hydroxyapatite precursor and methods for making and using the same
08/17/1999US5939039 Methods for production of calcium phosphate
08/17/1999CA2003351C Method of preparing heteropolyacid catalysts
08/12/1999WO1999040025A1 Novel materials useful as electrolytic solutes
08/11/1999EP0910546A4 Spherical hydroxyapatite particles and process for the production thereof
08/11/1999CN1044594C Method for prodn. of fodder grade calcium hydrogen phosphate
08/10/1999US5935542 Herbicides, insecticides, fertilizers, flame retardants, plasticizers
08/10/1999US5935541 Process for manufacture of lithium hexafluorophosphate
08/04/1999EP0933452A2 Process for producing hydroxyapatite fibers
08/04/1999CN1044460C Method for producing toothpaste grade calcium hydrophosphate
08/04/1999CN1044459C Process for producing feed of calcium phosphate by agglutinating method
08/04/1999CN1044458C Method for producing calcium dihydrogen phosphate as feed
07/1999
07/28/1999EP0931361A1 Lithium-containing, lithium-intercalating phosphates and their use as the positive or negative electrode material in a lithium secondary battery
07/28/1999CN1223962A Method for preparing feed class calcium hydrogen phosphate by one-step defluorinating
07/20/1999US5925397 Baking mix with leavening and heating
07/14/1999EP0928632A2 Synthesis of a linear phosphonitrilic chloride catalyst
07/13/1999US5922297 Silicophosphate compounds and method of making same
07/08/1999WO1999033945A1 A process for making a phosphate material
07/01/1999WO1999032401A1 Method for the preparation of carbonated hydroxyapatite compositions
07/01/1999WO1999032400A1 Process for the preparation of magnesium and carbonate substituted hydroxyapatite
06/1999
06/29/1999US5916993 Synthesis of a linear phosphonitrilic chloride catalyst
06/24/1999DE19851768A1 Verfahren zur Herstellung von Dialkylphosphinsäuresalzen Process for the preparation of dialkylphosphinic salts
06/23/1999CN1220236A Process for producing high effective phosphorus calcium hydrogen phosphate
06/23/1999CN1220235A Preparation of feed synthos by using slurry concentration defluorinating method
06/16/1999EP0922488A2 Composite solid particle and a method for producing same
06/16/1999CN1219503A Pasty hydroxy apatite and its manufacturing method
06/15/1999US5911962 Process for the purification of phosphorus oxychloride
06/15/1999US5911921 Non-stoichiometric ytterbium phosphate powder of low infrared reflectivity
06/10/1999WO1999028329A1 Method for producing dialkylphosphinic acid salts
06/09/1999EP0817757B1 Novel thorium phosphates, method for preparing same, and use thereof for storing radioactive materials
06/08/1999US5910382 Cathode of mixed oxide containing lithium, phosphorus and transition metal
06/08/1999US5910257 Purifying, removing the radioactive impurities in phosphoric acid by dipping a semiconductor into the heated phosphoric acid, the radioactive deposit on semiconductor
06/03/1999WO1999027006A1 Light-converting material and composition for producing the same
06/03/1999CA2312871A1 Light-converting material and composition for producing the same
06/02/1999CN2321772Y Sulfuric acid phosphoric acid mixing acid cooling device
06/02/1999CN1218003A Process for extracting sulfates from low grade powder of phosphorous ores
06/02/1999CN1043521C Method and apparatus for tower wet production process of concentrated phosphoric acid
06/01/1999CA2072352C Synthetic porous crystalline material, its synthesis and use
05/1999
05/26/1999CN1217705A Wet-process technique for refiining phosphoric acid
05/26/1999CN1217296A Gallium arsenide, gallium phosphide backing dry treatment method
05/18/1999US5904906 Reactor and plant for manufacturing ammonium salts
05/12/1999EP0879212A4 A method for extracting antimony from elemental phosphorus
05/12/1999EP0852566B1 Method for preparing nickel hypophosphite
05/06/1999WO1999021938A1 Use as phosphor dot in a plasma or x-ray system of a lanthanum phosphate comprising thulium
05/06/1999EP0912095A1 Phosphate composition and its utilization
05/06/1999CA2307132A1 Use as phosphor dot in a plasma or x-ray system of a lanthanum phosphate comprising thulium
05/05/1999CN1043213C Method for extracting phosphoric acid by hydrochloric acid method
05/04/1999US5900254 First part: partially neutralized phosphoric acid, a calcium phosphate source, and calcium carbonate; second part: aqueous lubricant containing sodium phosphate or sodium carbonate. set in situ to serve as a support structure, filler or prosthesis.
04/1999
04/28/1999EP0910546A1 Spherical hydroxyapatite particles and process for the production thereof
04/27/1999US5897848 Mixing sodium hypophosphite and nickel sulfate to produce sodium sulfate and nickel hypophosphite, separating nickel hypophosphite from waste stream containing sodium sulfate, cooling to crystallize out sodium sulfate, recycling waste
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