| Patents for C01B 25 - Phosphorus; Compounds thereof (12,526) |
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| 11/28/1978 | CA1043075A1 Processes for the manufacture of feed-grade dicalcium phosphate and phosphoric acid |
| 11/21/1978 | US4126665 Preparation of polymeric alkaline earth metaphosphate glasses |
| 11/21/1978 | US4126551 Method and apparatus for handling solvent extraction crud |
| 11/21/1978 | US4126275 Process for sizing and desliming of ore matrix |
| 11/21/1978 | CA1042801A1 Dental treatments |
| 11/21/1978 | CA1042626A1 Production of fluoride-free phosphates |
| 11/14/1978 | CA1042180A1 Stabilization of wet process phosphoric acid |
| 11/14/1978 | CA1042155A1 Granulate containing red phosphorus and a binder for the flameproofing of plastics |
| 11/07/1978 | US4124524 Neodymium ultraphosphates and process for their preparation |
| 11/07/1978 | CA1041896A1 Co-current absorber for recovering inorganic compounds from plant effluents |
| 11/07/1978 | CA1041734A2 Purification of phosphoric acid |
| 11/07/1978 | CA1041733A2 Purification of phosphoric acid |
| 11/07/1978 | CA1041732A1 Manufacture of water-insoluble ammonium polyphosphate |
| 10/24/1978 | US4122151 Process of stabilization of dibasic calcium phosphate dihydrate against hydrolysis with cyclic aminophosphonic acids |
| 10/10/1978 | US4119704 Process for making gallium arsenide or phosphide |
| 10/03/1978 | US4118462 Process for the preparation of purified phosphoric solutions from phosphoric acid |
| 10/03/1978 | CA1039475A1 Manufacture of solid ammonium phosphate |
| 09/26/1978 | US4117092 Process for separating a phosphoric acid-solvent solution |
| 09/26/1978 | US4117091 Wet process phosphoric acid produced using gypsum-containing waste water |
| 09/26/1978 | US4117090 Process of stabilization of dibasic calcium phosphate dihydrate against hydrolysis with azacycloalkane-2,2-diphosphonic acids |
| 09/26/1978 | US4117089 Process for preparing sodium ammonium hydrogen-phosphate and ammonium chloride from wet process phosphoric acid |
| 09/26/1978 | US4117086 Process of stabilization of dibasic calcium phosphate dihydrate against hydrolysis with 3-amino-1-hydroxypropane-1,1-diphosphonic acid |
| 09/26/1978 | US4116421 Method of sealing tapholes in a phosphorus furnace |
| 09/26/1978 | US4116390 Process for reducing the grain size of phosphate rock |
| 09/19/1978 | US4115522 Stabilized red phosphorus and process for making it |
| 09/12/1978 | US4113842 Fertilizer |
| 09/12/1978 | US4113841 Metal salt of organic phosphonic acid |
| 09/12/1978 | US4113835 Removing phosphate impurities from gypsum |
| 09/12/1978 | US4113500 Calcium magnesium phosphate, prosthetic teeth and bones |
| 09/05/1978 | US4112118 From phosphoric acid, water, and a base |
| 08/29/1978 | US4110422 Production of stabilized wet process phosphoric acid |
| 08/29/1978 | CA1037223A1 Basic zinc phosphites |
| 08/29/1978 | CA1037222A1 Phosphoric acid purification by production of 1:1 diisopropyl ether phosphoric acid compound |
| 08/22/1978 | US4108963 Solvent extraction |
| 08/22/1978 | US4108962 Process of stabilization of anhydrous dibasic calcium phosphate against fluorine ions with 3-amino-1-hydroxypropane-1,1-diphosphonic acid |
| 08/22/1978 | US4108961 Process of stabilization of anhydrous dibasic calcium phosphate against fluorine ions with azacycloalkane-2,2-diphosphonic acids |
| 08/22/1978 | US4108957 Aqueous slurry, forming calcium monophosphate, adding oxalic acid to precipitate calcium |
| 08/22/1978 | US4108746 Irradiating to induce oxidation |
| 08/22/1978 | US4108634 Using cyclone chamber |
| 08/15/1978 | US4106918 Method of recovering fluorine from vapor of crude phosphoric acid solution |
| 08/15/1978 | CA1036320A1 Process for the joint production of sodium, tripolyphosphate and titanium dioxide |
| 08/08/1978 | US4105759 Amine monofluorophosphates in dentifrices |
| 08/08/1978 | US4105749 Phosphoric acid manufacture from phosphate matrix |
| 08/08/1978 | US4105748 Continuous |
| 08/01/1978 | US4104362 From gaseous ammonia and aqueous phosphoric acid, continuous |
| 08/01/1978 | US4104079 Method of removing scale caused by raffinate in a phosphoric acid purification process |
| 07/18/1978 | US4101638 Process for the manufacture of a slurry containing highly concentrated phosphoric acid and calcium sulfate hemihydrate in a readily filterable form |
| 07/18/1978 | US4101636 Defluorinated phosphate rock process using lime |
| 07/11/1978 | US4100261 Production of pure alkali metal phosphate solutions from wet-processed phosphoric acid |
| 07/11/1978 | US4100106 Process for the production of a mixed-oxide oxidation catalyst containing vanadium and pentavalent phosphorus |
| 07/04/1978 | US4098872 Stabilized red phosphorus and process for making it |
| 06/27/1978 | US4097583 Process for the production of phosphorus pentasulfide |
| 06/06/1978 | US4093704 Method for synthesis of III-V compounds |
| 06/06/1978 | US4093662 Ether phosphoric acid compound |
| 05/23/1978 | US4091078 Production of phosphine |
| 05/09/1978 | US4088738 Process for producing phosphoric acid using mixed acid feed and a dicalcium phosphate intermediate |
| 05/02/1978 | US4087512 Solvent extraction with hydrocarbon liquid |
| 04/25/1978 | US4086322 Acidulation of phosphate rock with solution containing primary potassium phosphate, precipitation of monocalcium phosphate and potassium fluosilicate |
| 04/25/1978 | US4086069 Method for simultaneously concentrating and purifying phosphoric acid |
| 04/11/1978 | US4083937 Process for preparing pure phosphoric acid |
| 04/11/1978 | US4083936 Phosphate esters of aliphatic alcohols |
| 04/11/1978 | US4083934 Process for obtaining pure orthophosphoric acid from superphosphoric acid |
| 04/11/1978 | US4083933 Process for preparing AlH3 (PO4)2 ·3H2 O |
| 04/04/1978 | US4082836 Process for the purification of phosphoric acid by extraction |
| 04/04/1978 | US4082677 Animal feed ingredient, drilling mud additive, source of phosphoric acid |
| 03/28/1978 | US4081333 Of phosphorus from phosphorus mud |
| 03/21/1978 | US4080311 Thermally stable phosphate containing alumina precipitates and their method of preparation |
| 02/28/1978 | USRE29557 Tl3 PSe4 Compound, single crystals, and acousto-optical devices |
| 02/21/1978 | US4075305 Continuous process for the manufacture of phosphoric acid using process water |
| 01/31/1978 | US4071603 Process for preparing phosphoric acid |
| 01/24/1978 | US4070443 Process for removing sulfate ions from extracted phosphoric acid with a barium compound |
| 01/03/1978 | US4066572 Phospha-alumina gel and method of preparation |
| 12/27/1977 | US4065547 Method of defluorinating phosphoric acid |
| 12/27/1977 | US4065266 Sulfuric acid reacting with phosphate rock |
| 12/20/1977 | US4064220 Removal of dissolved organic matter from acidic aqueous solution |
| 11/29/1977 | US4060586 Recovery of fluorides from gypsum |
| 11/22/1977 | US4059679 Modified zirconium phosphates |
| 11/22/1977 | US4059674 Method for manufacturing phosphoric acid and gypsum |
| 11/22/1977 | US4059669 Method of making aluminum phosphate |
| 11/01/1977 | US4056601 Process for the production of yellow phosphorus |
| 11/01/1977 | US4056388 Process for utilizing ferrophosphorus |
| 10/25/1977 | USRE29458 From phosphate rock and potassium hydrogen sulfate |
| 10/25/1977 | US4055626 Sulfuric acid, potassium ion, silicon dioxide |
| 10/18/1977 | US4054678 Free-flowing baking powder |
| 10/11/1977 | US4053564 Extraction process for purification of phosphoric acid |
| 10/11/1977 | US4053563 Filtration stage interconnection, from phosphate rock and sulfuric acid, gypsum and calcium sulfate hemihydrate by-products |
| 10/11/1977 | US4053562 Production of alkali metal phosphate solutions of low vanadium content |
| 10/11/1977 | US4053561 Removal of fluorine from phosphatic solutions |
| 09/20/1977 | US4049779 Crystalline salt monomers for stable phosphate glasses |
| 09/20/1977 | US4049774 Process for reducing formation of gypsum scale durng the washing of calcium sulphate hemihydrate crystals |
| 09/20/1977 | US4049373 Apparatus for producing compact polycrystalline InP and GaP ingots |
| 09/13/1977 | US4048289 Stabilization of wet-process phosphoric acid |
| 09/06/1977 | US4046860 Ammonium fluoride process for defluorinating phosphoric acids and production of ammonium fluosilicate |
| 09/06/1977 | US4046858 Synthesis for crystalline hydroxyapatite |
| 09/06/1977 | US4046581 Refractory binder |
| 08/23/1977 | US4044108 Process for removing organic material from wet process phosphoric acid |
| 08/23/1977 | US4044107 Process for the manufacture of wet process phosphoric acid using wet-grinding of the phosphate rock feed |
| 08/23/1977 | US4044106 Sodium hydroxide or carbonate |
| 08/23/1977 | US4044105 Sodium ammonium phosphate, calcium chloride |
| 08/23/1977 | US4043789 Calcium-containing, nitrate and fluorine removal |