| Patents for C01B 25 - Phosphorus; Compounds thereof (12,526) |
|---|
| 03/10/1981 | US4255391 Apparatus for introducing and mixing a liquid in an essentially liquid medium |
| 03/10/1981 | US4255274 Lowering bulk density |
| 03/10/1981 | CA1097152A1 Stabilized red phosphorus and process for making it |
| 03/10/1981 | CA1097034A1 Apparatus for the production of hexagonal phosphorus pentoxide |
| 03/10/1981 | CA1097028A1 Crud handling circuit |
| 03/03/1981 | US4253988 Wetting the precursor prior to calcining thereby reducing attrition of the oxidation catalyst agglomerants |
| 03/03/1981 | CA1096991A1 Flame-retardant moulding compositions of thermoplastic material |
| 03/03/1981 | CA1096587A1 Manufacture of red phosphorus |
| 03/03/1981 | CA1096582A1 Ceramic hydroxylapatite material |
| 02/24/1981 | US4252770 Apparatus for the production of phosphoric acid |
| 02/17/1981 | US4251498 Preparation of granular sodium tripolyphosphate products from screen undersize sodium tripolyphosphate particles |
| 02/17/1981 | US4251491 Process for making sodium tripolyphosphate from wet process phosphoric acid |
| 02/17/1981 | US4251390 Partial oxidation catalyst |
| 02/17/1981 | US4251283 Bismuth vanadate pigments and process for preparing same |
| 02/17/1981 | CA1095727A1 Method for separating a mixture of molten oxidized ferrophosphorus and refined ferrophosphorus |
| 02/10/1981 | US4250155 Method of purifying phosphoric acid after solvent extraction |
| 02/10/1981 | US4250154 Re-post precipitation control |
| 02/10/1981 | US4250147 Reactor for preparation of ammonium polyphosphate |
| 02/10/1981 | CA1095218A1 Purification of phosphoric acid |
| 02/03/1981 | US4248847 Process for preparing a substantially crystalline sodium aluminosilicate |
| 02/03/1981 | US4248846 Nonsettling, reacting sulfuric acid and phosphate rock, clarification, aluminum silicate |
| 02/03/1981 | US4248843 Treatment of phosphoric acid |
| 02/03/1981 | US4248840 Cis-diammineplatinum(II) orthophosphate complexes |
| 02/03/1981 | US4248703 Attachment to floating continuous string belt |
| 02/03/1981 | US4248602 Production of phosphorus pentasulfide of predetermined reactivity |
| 01/28/1981 | EP0023195A2 A method of purifying phosphoric acid of cadmium |
| 01/28/1981 | EP0023057A1 Process for preparing phosphates and a uranium-containing concentrate from wet-process phosphoric acid, as well as phosphates and uranium-containing concentrate obtained with application of this process |
| 01/27/1981 | US4247526 Method for preparing dicalcium phosphate dihydrate with improved stability |
| 01/27/1981 | CA1094287A1 Process for preparing phosphate salts |
| 01/21/1981 | EP0022620A1 Aluminophosphorous compound, process for producing same and its use |
| 01/21/1981 | EP0022554A1 Process for the manufacture of phosphorus pentachloride |
| 01/21/1981 | EP0022477A2 Process for purifying wet process phosphoric acid |
| 01/20/1981 | US4246248 Flocculation to remove particles of black char |
| 01/20/1981 | CA1093785A1 Production of low density granular sodium tripolyphosphate |
| 01/14/1981 | EP0022193A1 Improved process for growing crystal of KTiOPO4 and analogues thereof |
| 01/14/1981 | EP0022186A1 Apparatus for liquid-liquid extraction |
| 01/13/1981 | US4244931 Dicalcium phosphate dihydrate with improved stability |
| 01/13/1981 | US4244879 Catalytic oxidation of butane, butene, or butadiene with mixed oxides of vanadium and phosphorus |
| 01/06/1981 | US4243643 Metallic ion removal from phosphoric acid |
| 01/06/1981 | US4243637 Uranium recovery from pre-treated phosphoric acid |
| 12/30/1980 | US4242308 Controllable reaction medium single reactor for phosphoric acid production |
| 12/30/1980 | US4242240 Compositions intended for the flameproofing of plastics |
| 12/30/1980 | US4242198 Reduction of magnesium and other cations in phosphoric acid |
| 12/30/1980 | CA1092575A1 Method of treating phosphate-containing material to reduce problem with clay swelling |
| 12/23/1980 | CA1091896A1 Production of red phosphorus |
| 12/16/1980 | US4239739 Manufacture of purified diammonium phosphate |
| 12/16/1980 | US4239523 Method for manufacturing phosphatic fertilizers having a high concentration, particularly calcium metaphosphate Ca(PO3)2 |
| 12/09/1980 | US4238459 Chemical beneficiation of phosphatic limestone and phosphate rock with α-hydroxysulfonic acids |
| 12/09/1980 | US4238457 Process for the recovery of uranium from wet-process phosphoric acid |
| 12/09/1980 | US4238347 Coagulants in water treatment |
| 12/09/1980 | US4238232 Indium-antimony |
| 12/09/1980 | CA1090985A1 Process for the production of chlorine dioxide |
| 12/09/1980 | CA1090984A1 Reclamation of phosphate from bright dip drag-out |
| 12/02/1980 | US4237106 Production of solid ammonium polyphosphate by controlled cooling |
| 12/02/1980 | US4237105 Thermochemical cyclic system for splitting water and/or carbon dioxide by means of cerium compounds and reactions useful therein |
| 12/02/1980 | US4236911 Treatment with acetone and ammonia |
| 12/02/1980 | CA1090531A1 Stabilization of calcium phosphate dihydrate |
| 11/25/1980 | US4235854 Acidification of phosphate rock filtration of slurry |
| 11/25/1980 | US4235709 Conditioning with a silicate, adding a cellulose, starch, or polysaccharide carboxylic acid |
| 11/25/1980 | CA1090090A1 Sodium aluminum phosphate |
| 11/13/1980 | WO1980002418A1 A method of purifying phosphoric acid of heavy metals |
| 11/11/1980 | US4233278 Process for purifying crude phosphoric acid |
| 11/11/1980 | CA1089196A1 Process of thermally treating solids |
| 11/04/1980 | US4231838 Method for flux growth of KTiOPO4 and its analogues |
| 11/04/1980 | CA1088724A1 Fluoride-free phosphate reactions |
| 10/29/1980 | EP0017784A1 Process for preparing an anticorrosion phosphate-based pigment |
| 10/29/1980 | EP0017741A1 Process for converting residues from the purification of phosphoric acid by extraction into solid waste products suitable for deposition |
| 10/28/1980 | US4230500 Inorganic pigments and method for preparing same |
| 10/28/1980 | CA1088571A1 Amine monofluorophosphates in dentifrices |
| 10/21/1980 | US4229307 Using electric arcs |
| 10/21/1980 | CA1087829A1 Alkali metal aluminum phosphate |
| 10/15/1980 | EP0016996A2 Process for removing organic impurities from phosphoric acid |
| 10/14/1980 | US4228140 Production of phosphates |
| 10/14/1980 | US4228001 Folded moving bed ion exchange apparatus and method |
| 10/14/1980 | CA1087376A1 Modified phosphorus furnace operation |
| 10/07/1980 | US4226833 Apparatus for obtaining biammonium phosphate |
| 10/01/1980 | EP0016531A2 Purification of phosphoric acid |
| 10/01/1980 | EP0016264A1 Process for extracting uranium from phosphoric acid |
| 09/30/1980 | US4225568 Process for the purification of an impure phosphoric acid |
| 09/30/1980 | US4225409 Metallic modified material of intermetallic compound and a process for the production of the same |
| 09/30/1980 | US4225347 Carbon carrier suitable for use in electrothermal reduction processes, and process for making it |
| 09/30/1980 | CA1086680A1 Electrolytic cation exchange process for conjoint manufacture of chlorine and phosphate salts |
| 09/30/1980 | CA1086475A1 Production of stabilized wet process phosphoric acid |
| 09/30/1980 | CA1086474A1 Process and apparatus for recovering alcoholic phosphoric acid solutions from acid phosphates |
| 09/23/1980 | US4224294 From soda ash (sodium carbonate) and phosphoric acid, used to make sodium tripolyphosphate |
| 09/17/1980 | EP0015811A1 Process for the recovery of uranium present in impure phosphoric acid |
| 09/17/1980 | EP0015809A2 Improved process and system for purifying brown phosphoric acid |
| 09/17/1980 | EP0015589A1 Process for recovering a uranium-containing concentrate and purified phosphoric acid from wet-process phosphoric acid, and products thus obtained |
| 09/17/1980 | EP0015384A1 Process and apparatus for making red phosphorus |
| 09/16/1980 | US4222994 Countercurrent, with amyl alcohol; dehydrating and recycling |
| 09/16/1980 | US4222990 Multistage, multizonal |
| 09/16/1980 | CA1085583A1 Process of concentrating dilute phosphoric acid |
| 09/16/1980 | CA1085581A1 Phosphoric acid manufacture from phosphate matrix |
| 09/09/1980 | US4221769 Process for preventing the formation of calcium sulphate scale |
| 09/03/1980 | EP0015006A2 Method of condensing solid materials and apparatus for performing the method |
| 09/03/1980 | EP0014931A1 Electrochemical generator with non-aqueous electrolyte |
| 09/03/1980 | EP0014755A1 Process for producing alkaliphosphate solutions free of zinc |
| 09/02/1980 | US4220630 Organic sulfonic acid defoamer |
| 09/02/1980 | US4220488 Gas-phase process for the production of an epitaxial layer of indum phosphide |
| 09/02/1980 | US4220317 Method of opening tapholes in a phosphorus furnace |