Patents for C01B 25 - Phosphorus; Compounds thereof (12,526) |
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04/12/1994 | CA1328344C Reducing anti-foam consumption in phosphoric acid production |
04/06/1994 | EP0590374A1 Process for preparation of hydroxyapatite |
04/05/1994 | US5300464 Mixing high aspect ratio phyllosilicate with lithium disilicate or alkaline earth silicate porecursor glass, extruding and sintering |
04/05/1994 | CA1328189C Preparation of tricalcium phosphate |
03/31/1994 | WO1994006575A1 Compositions and methods for waste treatment |
03/31/1994 | CA2145310A1 Compositions and methods for waste treatment |
03/30/1994 | CN1084488A Process and plant for removing lead, cadmium and zinc from dusts |
03/29/1994 | US5298545 Basic calcium aluminum hydroxy phosphites, a process for their production and their use |
03/22/1994 | US5296212 Method for the removal of sulfur from phosphorus |
03/16/1994 | EP0586910A1 Process and installation for removing lead, cadmium and zinc from dusts |
03/16/1994 | EP0586820A1 Phosphate-alumina composition of controlled pore size for use in catalysts |
03/16/1994 | CN1023994C Defluorinating agent for wet defluorination of phosphoric acid |
03/15/1994 | US5294429 Incorporating a diamine and metal substituting for some aluminum |
03/15/1994 | US5294424 Hydration then dehydration sodium phosphates |
03/15/1994 | CA1327694C Conversion of calcium compounds into solid and gaseous compounds |
03/08/1994 | US5292701 High pore volume and pore diameter aluminum phosphate and method of making the same |
03/08/1994 | US5292494 Process for production of red phosphorous powder |
03/03/1994 | WO1994004460A1 Methods and compositions for mineralizing and fluoridating calcified tissues |
03/03/1994 | CA2121243A1 Methods and compositions for mineralizing and fluoridating calcified tissues |
03/01/1994 | CA1327256C Fine filling method and fine filler for dental purposes |
02/23/1994 | CN1023862C Preparation for high concentrate phosphorus acid |
02/22/1994 | CA1327113C Process for the removal of heavy metals from acid, phosphate-containing, aqueous media |
02/18/1994 | CA2104052A1 (cobalt)(silicon)-aluminophosphates and process for preparing the same |
02/16/1994 | CN1081928A Closed circulation process for continuously thickening dreg-flushing liquid in wet phosphoric acid filter |
02/15/1994 | US5286582 Monaqueous electrolyte secondary battery and process for producing positive active materials |
02/09/1994 | CN1081650A Automatic controlling apparatus for erythrophosphorus conversion and method thereof |
02/08/1994 | CA1326754C Filtration aids for removal of calcium solids from aqueous phosphoric acid |
02/08/1994 | CA1326753C Process for the manufacture of monopotassium phosphate |
02/03/1994 | WO1994002412A1 Bone materials |
02/03/1994 | WO1994002411A1 Method for preparing phosphocalcium hydroxyapatite, use thereof for bone or tooth filling or for moulding parts, and products used therein |
02/02/1994 | EP0581622A1 Process for preparation of rare earth phosphates and products obtained thereby |
02/02/1994 | EP0581621A1 New green mixed lanthanum, terbium and cerium phosphate phosphors, their precursors and processes for their preparation |
02/02/1994 | EP0580915A1 Process for the elimination of build-up contaminants in an organic stream for production of pure phosphoric acid |
02/01/1994 | US5283042 Using activated charcoal |
01/26/1994 | EP0579666A1 Selective hydroxylation of phenol or phenolic ethers. |
01/25/1994 | US5281405 Optically useful compositions and a sol-gel process for their production |
01/18/1994 | US5279806 Adding calcium; forming precipitate and filtering |
01/11/1994 | US5277887 Reacting ammonium orthophosphate and phosphorus pentoxide in presence of gasous ammonia |
01/04/1994 | US5276251 Process for treating organic phosphoric acids |
01/04/1994 | CA1325707C Granular tricalcium phosphate compositions suitable for direct compression tableting |
12/28/1993 | US5273577 Bismuth phosphovanadate pigments |
12/23/1993 | WO1993025472A1 Process for purifying phosphoric acid |
12/23/1993 | WO1993025075A1 Formulations, method and apparatus for the controlled generation of phosphine |
12/23/1993 | CA2137074A1 Formulations, method and apparatus for the controlled generation of phosphine |
12/15/1993 | EP0573480A1 Basic calcium aluminium hydroxyphosphites, method for preparing them and use thereof. |
12/14/1993 | US5270370 Contacting with trans-cinnamaldehyde |
12/11/1993 | CA2070949A1 Production of phosphorous acid using gas plasma |
12/07/1993 | US5268167 Dental restorative; amorphous calcium phosphate fluoride and carrier |
12/07/1993 | US5268124 Method of making alkaline earth metal halophosphate phosphor using metal phosphide reducing agent |
12/07/1993 | CA1324915C Process for recovering heat from a carbon monoxide gas containing elemental phosphorus |
11/25/1993 | DE4216783A1 Purificn. of phosphorous acid mixts. produced during halogenation of hydrocarbon(s) - by treatment with water vapour followed by membrane filtration |
11/24/1993 | EP0367808B1 Process of preparing hydroxylapatite |
11/23/1993 | CA1324480C Process for the manufacture of disodium phosphate |
11/16/1993 | US5262963 Automatic control system for phosphoric acid plant |
11/09/1993 | US5260241 Controlled pore size phosphate-alumina material and method for producing same |
11/03/1993 | EP0567640A1 Ionic conductors for solid oxide fuel cells |
10/27/1993 | CN2144645Y Device for preparation of phosphorus pentachloride |
10/27/1993 | CN1022556C Feedstuff calcium hydrogen phosphate production by defluorination with gravity floatation |
10/26/1993 | US5256544 Microbial solubilization of phosphate |
10/26/1993 | US5256394 Radiological imaging method, and contrast media reagents therefor |
10/20/1993 | EP0566231A1 Process for production of red phosphorus powder |
10/19/1993 | CA1323172C Production of red phosphorus |
10/14/1993 | WO1993019788A1 Methods and compositions for magnetic resonance imaging |
10/14/1993 | CA2132744A1 Methods and compositions for magnetic resonance imaging |
10/13/1993 | EP0564451A1 Method of alkalimonofluorophospate manufacture. |
10/12/1993 | US5252306 Reaction of elemental phosphorus and chlorine in a liquid phosphorus trichloride layer |
09/29/1993 | CN1076592A One-step method for production of calcium dihydrogen phosphate as forage |
09/21/1993 | US5246902 Synthetic microporous solids containing gallium and phosphorous, their synthesis and their use as catalysts and adsorbents |
09/21/1993 | US5246681 Process for the removal of cadmium from solutions of phosphoric acid |
09/08/1993 | EP0559508A1 Novel coating for prosthesis |
09/08/1993 | EP0558887A1 Inorganic microporous particles and process for their preparation |
09/08/1993 | EP0205622B1 Calcium-phosphorus type apatite having novel properties and process for its production |
09/02/1993 | WO1993016956A1 Optically useful compositions and a sol-gel process for their production |
08/31/1993 | US5240681 Apparatus for injection analysis of total inorganic phosphate |
08/17/1993 | US5236679 Adding acid soluble silica to accidulation slurry of phosphate rock, precipitating calcium tetrafluoro aluminate |
08/17/1993 | CA1321295C Moisturized compositions of hydrate-forming phosphates and methods for preparation thereof |
08/11/1993 | EP0555168A1 Process for manufacturing crystal form II solid ammonium polyphosphate |
08/05/1993 | WO1993007905A3 Treated apatite particles for medical diagnostic imaging |
08/05/1993 | DE4203011A1 Yellow phosphorus@ purificn. - by mixing melt with active carbon@ powder in turbulent flow |
08/03/1993 | US5232794 Ionic conductors for solid oxide fuel cells |
08/03/1993 | US5232683 Crystalline aluminophosphates and related compounds |
08/03/1993 | US5232620 Wetting the anhydrous granules obtained from heating the sodium orthophosphate with a quantity of water, drying to expel unbound water |
07/27/1993 | US5230876 Precipitation and separation of vanadium and stripping then oxidation |
07/21/1993 | EP0551637A1 Bismuth vanadate pigments |
07/14/1993 | EP0550874A1 Nanocrystalline materials |
07/14/1993 | CN1074193A Continuous production technology for edible phosphoric acid |
07/13/1993 | US5227483 Reaction with non-volatile acid to liberate the amine and the volatile acid |
07/13/1993 | US5227147 Apatite whisker and method for preparation thereof |
07/13/1993 | CA1320034C Process of preparing virtually cadmium-free calcium sulphate and calcium sulphate prepared according to this process |
07/08/1993 | WO1993013013A1 Procedure for synthesis of crystalline microporous silico-alumino-phosphates |
07/06/1993 | US5225052 Electrodialysis, ion exchange |
06/30/1993 | EP0548365A1 Process for producing implant |
06/30/1993 | CN1073659A Process for purification of phosphor |
06/30/1993 | CN1021428C Crystal syntheses in flux and method for ktiopo4 type solid solution epitaxial |
06/24/1993 | WO1993012332A1 Method for diagnosing an engine using computer based models |
06/23/1993 | CN1073410A Energy-saving method for production of yellow phosphorus |
06/15/1993 | CA1319140C Microporous crystalline composite compositions and processes for making them |
06/15/1993 | CA1319008C Phosphate feed material for phosphorus electric furnaces and production of same |
06/08/1993 | US5218140 Carbonylation reaction and catalyst therefor |
06/08/1993 | US5217699 Calcium-phosphate type hydroxyapatite |