| Patents for C01B 25 - Phosphorus; Compounds thereof (12,526) |
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| 04/27/1999 | US5897841 Continuous process for producing phosphine fumigant gas |
| 04/22/1999 | WO1999019252A1 Method for separating phosphorus oxyacids, organophosphates and organophosphites |
| 04/15/1999 | WO1999018029A1 Apatite slurry and process for the preparation thereof |
| 04/14/1999 | CN1213644A Method of preparing antiseptic hydroxyl kietyoite cladding material |
| 04/07/1999 | CN1042820C Method for producing fodder grade calcium phosphate |
| 04/06/1999 | US5892080 Mesoporous crystalline acid composition of a diphosphonate-phosphite of a tetravalent metal which can be used as a catalyst |
| 04/06/1999 | CA2030974C Process for preparing sodium tripolyphosphate |
| 03/31/1999 | EP0904607A1 Cathode materials for secondary (rechargeable) lithium batteries |
| 03/31/1999 | EP0904251A1 A process for producing high-purity potassium salts |
| 03/31/1999 | EP0735983B1 Preparation of lithium hexafluorophosphate solutions |
| 03/24/1999 | EP0903323A1 Process for producing hypophosphite compounds |
| 03/23/1999 | US5885540 Producing a phase pure stereoisomers by heating to a first temperature and rapidly cooling below about 700 degree centigrade in less than 10 min, milling to particles |
| 03/17/1999 | CN1210810A Process for manufacture of lithium hexafluorophosphate |
| 03/17/1999 | CN1210808A Process and apparatus for producing low arsenium content yellow phosphorus by dry distillation process with liquid residue discharging |
| 03/10/1999 | EP0900762A1 Process for purifying phosphorus oxychloride |
| 03/10/1999 | CN1210502A Method for extracting antimony from elemental phosphorus |
| 02/25/1999 | WO1999008965A2 Structured materials |
| 02/24/1999 | CN1208717A Process for producing alkali metal polyphosphates |
| 02/24/1999 | CN1208568A Process for prodn. fodder calcium hydrophosphate by direct steeping from heavy calcium raw material |
| 02/23/1999 | CA2157890C Calcium phosphate hydroxyapatite precursor and methods for making and using the same |
| 02/17/1999 | EP0896950A1 Process for producing alkali metal polyphosphates |
| 02/17/1999 | EP0896567A1 Wet-process technique for refining phosphoric acid |
| 02/17/1999 | CN1208015A Method for production of mono-calcium phosphate product |
| 02/16/1999 | US5871866 Lithium-containing phosphates, method of preparation, and use thereof |
| 02/11/1999 | WO1998029106A3 Method for preparing cyanophosphonate derivatives from phosphoric anhydride and cyanide |
| 02/10/1999 | CN1207366A Process for producing calcium hydrogen phosphate by once-through defluorination |
| 02/02/1999 | US5866093 Method of preparing LiPF6 |
| 01/27/1999 | EP0892761A1 Process for producing a ceramic material based on calcium phosphate compounds and use of this material |
| 01/27/1999 | CN1041812C Defluorination method in process of producing fodder grade calcium hydrogen phosphate |
| 01/26/1999 | US5863854 Catalyst system for olefin polymerization and process for the polymerization of at least one olefin in the presence of this catalyst system |
| 01/21/1999 | WO1999002455A1 A method for the production of a mono-calcium phosphate product |
| 01/21/1999 | WO1999002454A1 Condensation polymerization of phosphorus containing compounds |
| 01/20/1999 | EP0891942A1 Process for purifying phosphorus oxychloride |
| 01/19/1999 | CA2088263C Method for production of implant |
| 01/15/1999 | CA2242815A1 Process for the purification of phosphorous oxychloride |
| 01/13/1999 | CN1204620A Process for recovery and recycle of ammonia from acrylonitrile reactor efflvent stream using ammonium phosphate quench system |
| 01/12/1999 | US5858318 Methods of synthesizing hydroxyapatite powders and bulk materials |
| 01/12/1999 | US5858317 Method for preparing cyanophosphonate derivatives from phosphoric anhydride and cyanide |
| 01/07/1999 | WO1999000324A1 Soluble acid polyphosphates and device for their production |
| 01/07/1999 | EP0888188A1 Crystalline metallophosphates |
| 01/07/1999 | EP0888187A1 Crystalline metallophosphates |
| 01/07/1999 | DE19727144A1 Lösliche, saure Polyphosphate und Verfahren und Vorrichtung zu ihrer Herstellung Soluble acid polyphosphates and process and apparatus for their preparation |
| 12/30/1998 | CN1203189A Improved preparing process for changing coral into hydroxy-apatite 'artificial bone' |
| 12/23/1998 | EP0622990B1 Carbonated hydroxyapatite compositions and uses |
| 12/23/1998 | CN1202456A Process for producing titanium phosphate |
| 12/23/1998 | CN1202455A Process for making fine phosphate from mud phosphate as by product of electric heating yellow phosphorus production |
| 12/17/1998 | WO1998056713A1 Method for concentrating phosphoric acid |
| 12/17/1998 | WO1998056712A1 A method for extracting antimony from elemental phosphorus |
| 12/17/1998 | DE19724613A1 Sodium tri:metaphosphate production |
| 12/16/1998 | CN1201756A Method for producing fodder grade calcium hydrophosphate from residue of phosphorus mud |
| 12/16/1998 | CN1201755A Combined depositting defluorinating method for fodder grade calcium hydrophosphate by wet process from phosphate |
| 12/09/1998 | EP0882671A1 Process for the preparation of lithium hexafluorophosphate |
| 12/09/1998 | EP0748292B1 Method of making hypophosphorous acid |
| 12/09/1998 | CN1201401A Method of recovering fluorine compounds from vapors exiting wet process phosphoric acid evaporators |
| 12/09/1998 | CN1200953A Synthesized chalcoalumite type chemical compound and preparation method therefor |
| 12/09/1998 | CN1041077C Method for preparing ferric phosphate powder |
| 12/06/1998 | CA2239935A1 Process for producing lithium hexafluorophosphate |
| 12/03/1998 | WO1998054089A1 Hydroxylapatite gel |
| 12/03/1998 | CA2291677A1 Hydroxylapatite gel |
| 11/25/1998 | EP0879212A1 A method for extracting antimony from elemental phosphorus |
| 11/24/1998 | US5840792 Stabilizer for halogen-containing resin |
| 11/18/1998 | CN1199382A Method for preparation of sodium ammonium phosphate |
| 11/11/1998 | CN1198723A Method for preparing nickel hypophosphite |
| 11/10/1998 | US5834050 Baking mix including novel leavening acid composition produced by heating monocalcium phosphate at elevated temperatures |
| 11/04/1998 | CN1197690A Catalyst for clean catalytic oxidation of arene and its preparation |
| 11/04/1998 | CN1040527C Formulations for generation of phosphine |
| 10/29/1998 | WO1998047814A1 Solution crystallization process for the production of incongruently-soluble acid phosphates by incorporating a phosphate salt solution wash |
| 10/21/1998 | EP0871525A1 Liquid medium extraction purification method |
| 10/21/1998 | CN1196332A High-temp hydrolytic delluorinating method and device for producing feed-grade calcium hydrogen phosphate from phosphoric acid by using wet process. |
| 10/20/1998 | US5824132 Method of phosphoric acid concentration |
| 10/14/1998 | CN1040199C Phosphoric acid producing method by directly reducing phosphorus ore |
| 10/13/1998 | US5821186 Method for preparing hydrous titanium oxide spherules and other gel forms thereof |
| 10/13/1998 | US5820840 Composition for producing phosphine gas |
| 10/13/1998 | US5820632 Prepared calcium phosphate composition and method |
| 10/08/1998 | WO1998043558A1 Calcium phosphate microcarriers and microspheres |
| 10/07/1998 | CN1040092C Hydroxy calcium-sodium poly phosphate and its producing method |
| 10/07/1998 | CN1040091C Process and apparatus for producing phosphorus by solid reaction with coal combustion heating indirectly |
| 09/30/1998 | EP0866885A1 Nanostructured feeds for thermal spray |
| 09/17/1998 | WO1998040406A1 Calcium phosphopeptide complexes |
| 09/17/1998 | CA2727634A1 Calcium fluoride phosphate complexes |
| 09/16/1998 | CN1039800C Solvent sedimentation method for purifying wet method phosphoric acid |
| 09/03/1998 | WO1998038127A1 Method for preparing phosphoric acid |
| 09/03/1998 | CA2279953A1 Method for preparing phosphoric acid |
| 09/02/1998 | EP0861924A1 Hypophosphite solutions and their use in nickel plating |
| 09/02/1998 | EP0861913A1 Iron powder containing phosphorus |
| 09/01/1998 | US5800788 Reactor container, plant and process for the production of sulfuric acid |
| 08/26/1998 | EP0859781A1 Lithium and pyridine hexafluorophosphate solvate, its preparation and method for preparing lithium hexafluorophosphate using this solvate |
| 08/26/1998 | EP0859737A1 Low temperature calcium phosphate apatite and a method of its manufacture |
| 08/26/1998 | CN1191495A Liquid medium extraction purification method |
| 08/19/1998 | CA2226744A1 Nickel hypophosphite solutions containing increased nickel concentration |
| 08/13/1998 | WO1998034707A1 Method of phosphoric acid concentration and fertilizer production |
| 08/13/1998 | DE19707297A1 Complex gallium or aluminium phosphate, giving orthorhombic crystal with cage structure |
| 08/12/1998 | CN1190382A Fine particles of petaloid porous hydroxyapatite and process for producing the same |
| 08/12/1998 | CN1190078A Wet phosphoric acid producing process using hydrogen chloride gas directly |
| 08/11/1998 | US5792572 Scrubber bed for removing ammonia with phosphoric acid electrolyte, cooler for preventing phosphoric acid evaporation |
| 08/06/1998 | WO1998033741A1 Wet-process technique for refining phosphoric acid |
| 08/06/1998 | DE19703884A1 Verfahren zur Reinigung von Naßverfahrensphosphorsäure A process for purifying wet process phosphoric acid |
| 08/06/1998 | CA2250914A1 Wet-process technique for refining phosphoric acid |
| 08/05/1998 | CN1039401C Prodn. of defluorinated phosphate with powdered coal as fuel |
| 07/29/1998 | EP0855217A1 Mesoporous crystalline composition with a high surface area of a tetravalent metal which can be used as catalyst |