| Patents for C01B 25 - Phosphorus; Compounds thereof (12,526) |
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| 05/10/1983 | US4382840 Hydrothermal crystal growing process and apparatus |
| 05/04/1983 | EP0078051A2 Process for separating heavy metal values from intermediate products in the manufacture of phosphatic fertilizers |
| 05/03/1983 | US4382066 Uranium extraction process |
| 04/26/1983 | US4381289 Process for preparing zirconium phosphate |
| 04/19/1983 | US4380531 Process for preparing phosphorus acid from industrial waste materials |
| 04/12/1983 | US4379776 Process for reducing aluminum and fluorine in phosphoric acids |
| 04/12/1983 | CA1144339A1 Process for the purification of wet-processed phosphoric acid |
| 04/05/1983 | US4379132 Process for sodium hypophosphite |
| 04/05/1983 | US4379131 Production of phosphorus pentoxide with utilization of reaction heat |
| 04/05/1983 | US4379108 Strengthening phosphate shale briquettes |
| 04/05/1983 | CA1143948A1 Uranium recovery process |
| 03/29/1983 | US4378340 Method of purifying phosphoric acid of heavy metals |
| 03/23/1983 | EP0074563A2 Zinc ferrite pigments of poor halogen content, process for manufacturing them and their use |
| 03/23/1983 | EP0074556A1 Process for recovering a cadmium-free crude phosphoric acid |
| 03/23/1983 | EP0074503A1 Process for the post-treatment of extraction residues of phosphoric-acid purification |
| 03/22/1983 | US4377562 Solvent extraction method of phosphoric acid |
| 03/22/1983 | US4377561 Clarification of black phosphoric acid with phosphoric acid rinse water |
| 03/22/1983 | US4377560 Process for producing low aluminum content phosphoric acid from high aluminum matrix |
| 03/22/1983 | US4377559 Chlorination, hydrolysis |
| 03/15/1983 | US4376756 Process for blending phosphoric acids of differing impurity content |
| 03/15/1983 | US4376709 Ion exchanging |
| 03/03/1983 | WO1983000686A1 Low temperature catalytic reduction |
| 03/02/1983 | EP0073012A1 Hardener for water-glass putty |
| 03/01/1983 | US4375457 Process for purifying yellow phosphorus |
| 03/01/1983 | US4375456 Salt formation, spray drying |
| 03/01/1983 | US4375386 Cyclonic entrainment separator for evaporator |
| 03/01/1983 | CA1141941A1 Decontamination of wet-processed phosphoric acid |
| 03/01/1983 | CA1141940A1 Process for freeing phosphoric acid from organic contaminants |
| 03/01/1983 | CA1141939A1 Production of alkali metal phosphate solutions free from zinc |
| 02/23/1983 | EP0072457A2 Process and apparatus for producing synthesis gas |
| 02/23/1983 | EP0072381A1 Coated catalysts useful in the preparation of maleic anhydride, preparation thereof and use in the preparation of maleic anhydride |
| 02/22/1983 | US4374817 Formulation of phosphate rock slurries |
| 02/22/1983 | US4374816 Phosphine and hydrogen peroxide |
| 02/22/1983 | US4374756 Partial oxidation of hydrocarbons |
| 02/22/1983 | US4374706 Process for the purification of phosphorus pentasulphide by distillation under vacuum |
| 02/22/1983 | CA1141742A1 Preparation of vanadium phosphorus catalysts |
| 02/16/1983 | EP0071797A1 Process for the removal of organic impurities from phosphoric acid |
| 02/15/1983 | US4374109 From ferric nitrate, phosphoric acid mixtures using seed to initiate precipitation |
| 02/15/1983 | US4374108 Process of preparing alkali monofluorophosphate |
| 02/15/1983 | US4373893 Bench scale drum agglomerator and power means |
| 02/15/1983 | CA1141144A1 Wet process for purifying a phosphoric acid |
| 02/15/1983 | CA1141143A1 Process for condensing solids and apparatus for carrying out said process |
| 02/09/1983 | EP0071140A2 Vanadium/phosphorus mixed oxide catalyst, process for its preparation and its use |
| 02/09/1983 | EP0071040A2 Apparatus for the manufacture of alkali metal polyphosphates from alkali metal phosphate solutions or suspensions |
| 02/09/1983 | EP0071021A2 Use of sodium triphosphate for preparing washing compositions |
| 02/08/1983 | US4372929 Energy conservation and pollution abatement at phosphorus furnaces |
| 02/08/1983 | CA1140912A1 Process for preparing phosphorus-vanadium-oxygen catalysts |
| 02/01/1983 | US4371509 Oxidizing phosphorus compounds with chlorosulfonic acid |
| 02/01/1983 | US4371505 Extraction, redox systems |
| 02/01/1983 | CA1140315A1 Dry process for preparing phosphoric acid |
| 01/26/1983 | EP0070415A1 Process for extracting heavy metals ions from aqueous solutions |
| 01/25/1983 | US4370304 Two-phase spraying device and reaction chamber for the preparation of a product containing ammonium orthophosphate |
| 01/25/1983 | CA1139956A1 Process for extracting uranium from crude phosphoric acids |
| 01/25/1983 | CA1139954A1 Purification of wet process phosphoric acid as a pretreatment step in the recovery of uranium |
| 01/25/1983 | CA1139937A1 Apparatus and method for opening tapholes in a phosphorus furnace |
| 01/25/1983 | CA1139922A1 Thermochemical cyclic system for splitting water and/or carbon dioxide by means of cerium compounds and reactions useful therein |
| 01/19/1983 | EP0070216A2 Process for the thermal and/or chemical homogeneous treatment of a fluid, and application to synthetic inorganic phosphates |
| 01/18/1983 | US4369169 Pretreatment of crude wet process phosphoric acid |
| 01/18/1983 | US4369168 Decoloring |
| 01/12/1983 | EP0069644A2 Sodium orthophosphate and process for its manufacture |
| 01/12/1983 | EP0069643A2 Sodium tripolyphosphate, process for its manufacture and uses thereof |
| 01/11/1983 | US4368179 Process for the oxidation of alkali metal phosphites |
| 01/11/1983 | CA1139099A1 Recovering heat from burning elemental phosphorus |
| 01/11/1983 | CA1139077A1 Process and apparatus for making p.sub.2s.sub.5 of low reactivity |
| 01/05/1983 | EP0068663A1 A process and extractant for removing fluorine compounds from aqueous phosphoric acid |
| 01/05/1983 | EP0068413A2 Method of using higher concentration sulfuric acid for stripping and precipitation of adsorbed magnesium |
| 01/05/1983 | EP0068412A2 Method and apparatus for folded moving bed ion exchange system |
| 01/05/1983 | EP0068411A2 Method of selectively removing adsorbed calcium and magnesium from cation exchange resins |
| 01/04/1983 | US4367197 Method for the control of excessive corrosion in phosphoric acid circuits |
| 12/28/1982 | US4365988 Fluid-mixing apparatus and method |
| 12/21/1982 | US4365061 Storage stability |
| 12/21/1982 | US4364912 Post precipitation control of low-iron phosphoric acid, without perlite |
| 12/21/1982 | US4364911 Controlled hydrolysis |
| 12/21/1982 | US4364854 Acid gelling aluminum phosphate from concentrated mass and catalyst containing same |
| 12/14/1982 | US4363880 Method of selectively removing adsorbed calcium and magnesium from cation exchange resins |
| 12/14/1982 | US4363786 Apparatus for reacting a particulate solid and a liquid |
| 12/14/1982 | CA1137274A1 Process for producing phosphoric acid |
| 12/07/1982 | US4362705 Process for the preparation of phosphoric acid and calcium sulphate anhydrite as well as phosphoric acid and calcium sulphate anhydrite obtained by this process |
| 12/07/1982 | CA1136831A1 Process for preparing a desulfated phosphoric acid used in foods |
| 12/07/1982 | CA1136830A1 Conversion of extraction residues originating from phosphoric acid decontamination to solid deposition products |
| 12/01/1982 | EP0065844A1 Process for stripping uranium from an alkyl pyrophosphoric acid |
| 11/30/1982 | US4361501 Preparation of vanadium phosphorus catalysts using a mixed phosphorus source |
| 11/30/1982 | CA1136423A1 Method for reclaiming uranium from raw phosphoric acid |
| 11/23/1982 | US4360625 Acicular, crystalline calcium metaphosphate |
| 11/23/1982 | CA1136115A1 Partial oxidation catalyst |
| 11/16/1982 | US4359405 Improved crush strength |
| 11/16/1982 | CA1135627A1 Dicalcium phosphate dihydrate with improved stability and method for preparation |
| 11/10/1982 | EP0064371A1 Heteropoly acids and their production and use |
| 11/09/1982 | CA1135028A1 Process and apparatus for removing molten phosphorus pentasulfide from a reactor |
| 11/09/1982 | CA1135027A1 Method of preparing ultraphosphoric acid |
| 11/03/1982 | EP0063956A1 High selectivity process for vapor phase oxydehydrogenation of alkanoic acids, such as isobutyric acid, using Dawson structure phosphomolybdic acid |
| 11/02/1982 | US4357161 Method for processing wastes resulting from production of phosphorus, namely, slime and off-gases, with utilization of the resultant products |
| 11/02/1982 | CA1134594A1 Purifying process for phosphoric acid |
| 10/27/1982 | EP0063231A1 Metering device |
| 10/26/1982 | CA1134119A1 Treatment process for an impure phosphoric acid |
| 10/19/1982 | US4355162 Layered compounds of mixed oxides and Lewis bases |
| 10/19/1982 | US4355010 Process for removing phosphorus in vapor form and phosphanes from gas mixtures |
| 10/19/1982 | US4354944 Clarification of ammonium polyphosphate solutions |
| 10/19/1982 | US4354943 Polyvinyl imidazole bisulfate flocculant |
| 10/12/1982 | US4353877 For phosphate rock with hydrochloric acid and recovery of phosphoric acid and metal values |