| Patents for C01B 25 - Phosphorus; Compounds thereof (12,526) |
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| 11/01/1989 | CN1036745A Method for removal of heavy metals, especially cadmium, from phophoric acid containing solutions |
| 10/31/1989 | US4877594 Adding polyphosphate, ammonium or alkali metal ion, and alcohol, separation |
| 10/31/1989 | US4877593 Synthesis of crystalline aluminophosphate composition |
| 10/31/1989 | US4877449 Vertical shaft melting furnace and method of melting |
| 10/19/1989 | WO1989009749A1 Synthesis of a crystalline molecular sieve |
| 10/19/1989 | WO1989009748A1 Synthesis of a crystalline molecular sieve |
| 10/19/1989 | WO1989003805A3 Production of low-fluorine calcium phosphate and phosphoric acid and of silica |
| 10/18/1989 | EP0337123A1 A process for the preparation of microspherical sintered bodies of hydroxyapatite and a chromatographic packing material comprising the microspherical sintered bodies of hydroxyapatite |
| 10/18/1989 | CN1036376A Crystalline aluminumphosphate compositions |
| 10/17/1989 | US4874593 Conversion of pyrophoric P4 -containing material to P2 O5 material |
| 10/12/1989 | DE3842130C1 Process for preparing calcium hydrogen diphosphate |
| 10/11/1989 | EP0336245A2 Positive electrode for seconary battery with alkaline electrolyte |
| 10/10/1989 | US4873068 Process for manufacturing tetrasodium pyrophosphate |
| 10/05/1989 | DE3908715A1 Verfahren zur herstellung von pulverfoermigen hochschmelzenden anorganischen verbindungen und metallischen mischkoerpern Process for the preparation of pulverfoermigen refractory inorganic compounds and metallic mischkoerpern |
| 10/04/1989 | EP0335280A1 Process for the purification of wastewater containing high concentration of ammonium ion |
| 10/03/1989 | CA1262030A1 Production of potassium phosphates by ion exchange |
| 10/03/1989 | CA1262029A1 Process for the preparation of asbestiform crystalline calcium sodium metaphosphate fibers |
| 10/03/1989 | CA1262028A1 Process for the preparation of substantially crystalline calcium sodium metaphosphate |
| 10/03/1989 | CA1262027A1 Process for the preparation of substantially crystalline calcium sodium metaphosphate |
| 09/28/1989 | DE3809085A1 Process for the preparation of an aqueous phosphorous acid low in heavy metals and arsenic |
| 09/28/1989 | DE3809064A1 Process for the preparation and purification of an aqueous phosphorous acid |
| 09/27/1989 | EP0333816A1 Crystalline aluminumphosphate compositions |
| 09/27/1989 | CN1035810A Dearsenification method of yellow phosphorus |
| 09/27/1989 | CN1035809A Method of dearsenificatin from phosphate ore |
| 09/26/1989 | CA1261586A1 Sodium tripolyphosphate manufacture |
| 09/26/1989 | CA1261116A1 Process of removing cationic impurities from wet process phosphoric acid |
| 09/26/1989 | CA1261115A1 Process for dearsenifying phosphoric acid solutions |
| 09/26/1989 | CA1260226A1 Granular anhydrous dicalcium phosphate compositions suitable for direct compression tableting |
| 09/26/1989 | CA1259774A1 Metallophosphoaluminates and their synthesis |
| 09/21/1989 | WO1989008608A1 Synthetic crystalline molecular sieve and its synthesis |
| 09/21/1989 | WO1989008607A1 A synthetic crystalline aluminophosphate composition and a method of its synthesis |
| 09/20/1989 | EP0333489A2 Process for the removal of heavy metal ions from phosphoric acid |
| 09/20/1989 | EP0333084A2 Method for preparing gaseous fluorides |
| 09/20/1989 | EP0332940A1 Process for the preparation of sodium tripolyphosphate |
| 09/19/1989 | US4867958 Homogenous mixtures of polyphosphates |
| 09/08/1989 | WO1989008075A1 Method for removal of heavy metals, especially cadmium, from phosphoric acid containing solutions |
| 09/06/1989 | EP0331415A1 Anticalculus oral compostions |
| 09/06/1989 | EP0331188A2 Process for removing iron, chromium and vanadium from phosphoric acid |
| 09/06/1989 | EP0330917A2 Continuous process for the complete removal of organic impurities and the complete decolourization of prewashed wet phosphoric acid |
| 09/05/1989 | CA1258960A1 Preparation of a hexahydrated sodium tripolyphosphate with a high absorption capability |
| 08/30/1989 | CN1035093A Technology for removal of magnesium from phosphorous ore |
| 08/29/1989 | US4861739 Microporous crystalline composite compositions |
| 08/29/1989 | US4861490 Removal of cationic impurities from inorganic solutions |
| 08/24/1989 | DE3904073A1 Process for obtaining heat |
| 08/22/1989 | US4859466 Microbicides |
| 08/15/1989 | US4857287 Fast-dissolving, non-caking, food grade sodium tripolyphosphate |
| 08/15/1989 | US4857211 Cleaning of filter surfaces |
| 08/09/1989 | EP0327234A1 Extraction of iron from phosphoric acid |
| 08/08/1989 | US4855118 Method of producing fluorapatite |
| 08/01/1989 | USRE33009 Method for preparing crystalline zirconium phosphates |
| 08/01/1989 | US4853358 Method of making inorganically crosslinked layered compounds |
| 08/01/1989 | US4853288 Stabilized red phosphorus and process for making it |
| 08/01/1989 | US4853201 Recovery of P2 O5 values from phosphoric acid hemihydrate crystals |
| 08/01/1989 | US4853200 Continuous process for preparing sodium orthophosphate slurries from natural soda ash orthophosphoric acid |
| 08/01/1989 | US4853197 Crystalline metal aluminophosphates |
| 08/01/1989 | US4853144 Quick-dissolving and hydrating; dishwashing detergents |
| 07/25/1989 | US4851204 Crystalline aluminophosphate composition |
| 07/25/1989 | EP0221057A4 Disposable chemical container. |
| 07/18/1989 | US4849193 From monobasic calcium phosphate and calcium hydroxide |
| 07/12/1989 | CN1033780A Conversion of pyrophoric p4 containing material to p2o5 material |
| 07/11/1989 | US4846853 Layered divalent metal hydrogen phosphates |
| 07/11/1989 | CA1257222A1 Removal of arsenic from acids |
| 07/05/1989 | CN1033611A Method for preparing crystal of sodium aluminium acid phosphate |
| 07/04/1989 | CA1256670A1 Calcium phosphates |
| 06/29/1989 | WO1989005775A1 Crystalline molecular sieve |
| 06/28/1989 | EP0322013A2 A process for the preparation of solid dispersions of acid salts of tetravalent metals having lamellar structure in an inert inorganic matrix, and the products so obtained |
| 06/27/1989 | CA1256268A1 Process for reducing iron and vanadium in phosphoric acid solution |
| 06/21/1989 | EP0321438A2 Piezoelectric crystal element, and method of making the same |
| 06/14/1989 | CN1004480B Calcium phosphate type hydroxy apatite and their produced method |
| 06/13/1989 | CA1255471A1 Production of ingredients for detergents and soap powders from alkali phosphates |
| 06/07/1989 | EP0318519A1 Method of making inorganically crosslinked layered compounds |
| 06/07/1989 | CN1033261A Process of producing ammonium phosphate |
| 06/06/1989 | US4836995 Process for the manufacture of monopotassium phosphate |
| 06/06/1989 | US4836994 Calcium-phosphorus-apatite having novel properties and process for preparing the same |
| 05/31/1989 | EP0318338A1 Process for the preparation of peptide synthons |
| 05/30/1989 | US4834960 Process for purifying phosphorous acid |
| 05/24/1989 | EP0151177B1 Stabilization of wet process phosphoric acid |
| 05/23/1989 | US4832928 Method for producing ammonium polyphosphate |
| 05/18/1989 | WO1989004290A1 Phosphine emission inhibition |
| 05/10/1989 | CN1032809A Hydrocracking catalysts and processes employing non-zeolitic molecular sieves |
| 05/09/1989 | US4828823 Stabilization |
| 05/09/1989 | US4828811 Method for producing phosphoric acid from phosphate ore |
| 05/05/1989 | WO1989003805A2 Production of low-fluorine calcium phosphate and phosphoric acid and of silica |
| 05/02/1989 | US4826666 Method of preparing metal carbides and the like and precursors used in such method |
| 05/02/1989 | US4826663 Zirconium phosphate and method for its preparation |
| 04/26/1989 | EP0313433A1 Process for the preparation of crystalline acid sodium and aluminium phosphates |
| 04/25/1989 | US4824650 Method for extracting arsenic and heavy metals from phosphoric acid |
| 04/25/1989 | US4824649 High viscosity potassium metaphosphate |
| 04/18/1989 | US4822584 Process for obtaining phosphorus from aqueous suspension of phosphorus slime |
| 04/18/1989 | US4822583 Compacting mixture of calcined phosphate fines and phosphoric acid |
| 04/18/1989 | US4822582 Process for the removal of heavy metals from acid, phosphate-containing, aqueous media |
| 04/13/1989 | DE3832645A1 Process for preparing monocalcium phosphate |
| 04/12/1989 | CN1032333A Manufacture method for humic-acid kind of phosphate fertilizer briquette |
| 04/11/1989 | US4820501 Method for removing organic materials dissolved in purified phosphoric acid |
| 04/05/1989 | EP0310591A1 Process and apparatus for growing homogeneous crystals |
| 04/04/1989 | US4818636 Films of catenated phosphorus materials, their preparation and use, and semiconductor and other devices employing them |
| 03/28/1989 | US4816240 Liquid phase |
| 03/28/1989 | CA1251619A1 Process for treatment of phossy water for recycling |
| 03/28/1989 | CA1251617A1 Phosphoric acid preparation process |
| 03/22/1989 | EP0307839A1 Process for the production of activating titanium phosphates for zinc phosphatizing |