| Patents for C01B 25 - Phosphorus; Compounds thereof (12,526) |
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| 03/21/1989 | US4814154 Method and apparatus for the preparation of a disinfecting fluid |
| 03/15/1989 | EP0307378A1 Process for preparing a sodium tripolyphosphate hexahydrate powder |
| 03/15/1989 | EP0096718B1 Process for reducing radioactive contamination in phosphogypsum |
| 03/15/1989 | CN1031657A Homogeneous crystal making method and device thereof |
| 03/14/1989 | US4812149 Hot inert gas purging for filter blowback process |
| 03/14/1989 | CA1251011A1 Linear polychlorophosphazenes containing a dichlorothiophosphoryl end-group |
| 03/09/1989 | WO1989001912A1 Crystalline aluminumphosphate compositions |
| 03/08/1989 | EP0306205A1 High viscosity potassium metaphosphate |
| 03/08/1989 | EP0306050A1 Hydrocracking catalysts and processes employing non-zeolitic molecular sieves |
| 03/02/1989 | DE3827810A1 Agglomerated phosphate furnace charge and process for its preparation |
| 03/01/1989 | EP0305313A1 A corrosion inhibiting pigment |
| 03/01/1989 | EP0305046A1 A method of decontaminating a location containing pyrophoric tetraatomic phosphorus contamination |
| 02/28/1989 | US4808392 Process for producing silanes |
| 02/28/1989 | US4808391 Oxidation-reduction process for enhancing the color of and stabilizing wet process phosphoric acid |
| 02/21/1989 | US4806326 No loss in mechanical strength; compaction, agglomeration, roasting with phosphoric acid |
| 02/21/1989 | US4806325 Plasma arc furance |
| 02/21/1989 | US4806324 Process for making phosphoric acid free from titanium |
| 02/21/1989 | US4806323 Method for the removal of cadmium from acid phosphate-containing aqueous media |
| 02/15/1989 | EP0303362A2 Conversion of pyrophoric tetraatomic phosphorus-containing material to phosphorus pentoxide material |
| 02/15/1989 | CN1031066A Crystal syntheses in flux and method for ktiopo4 type solid solution epitaxial |
| 02/15/1989 | CN1031065A Method and apparatus for producing phosphoric acid from phosphate ore |
| 02/14/1989 | US4804553 Alkali metal acid pyrophosphate leavening acid compositions and methods for producing the same |
| 02/14/1989 | US4804526 Process for purifying phosphoric acid for electrical semiconductor use |
| 02/09/1989 | DE3725583A1 Phosphorous acid solns. of low iron and arsenic content - prepd. by converting sec. calcium phosphite to prim. calcium phosphite solns., removing iron and arsenic by pptn. etc |
| 02/07/1989 | US4803187 In liquid phase to alcohol |
| 02/07/1989 | US4803058 Free-flowing, anticaking, high rate of hydration; used for detergents, foods |
| 02/07/1989 | CA1249709A1 Extracting soluble phosphates from naturally occurring iron and aluminium phosphates using solutions of alkali metal carbonates and hydroxides |
| 02/01/1989 | EP0301723A1 Oxidation of alkanes |
| 01/24/1989 | US4800071 Filtration aids for removal of calcium solids from aqueous phosphoric acid |
| 01/24/1989 | US4800055 Detergents, cleaning compounds |
| 01/18/1989 | EP0299212A2 A method of synthesizing amorphous group IIIA-group VA compounds |
| 01/17/1989 | US4798712 Homogeneous mixtures of polyphosphates |
| 01/17/1989 | US4798701 Method of synthesizing amorphous group IIIA-group VA compounds |
| 01/17/1989 | CA1248736A1 Apparatus for reducing iron and vanadium in phosphoric acid solution |
| 01/11/1989 | EP0298948A2 Process for purifying phosphoric acid |
| 01/11/1989 | EP0298746A2 Coated inorganic materials |
| 01/11/1989 | EP0298501A2 Composition for forming calcium phosphate type hardening material and process for producing such hardening material |
| 01/10/1989 | US4797265 Digestion of phosphate rock with sulfuric acid to get gypsum |
| 12/28/1988 | EP0296501A1 Nonflammable resinous composition |
| 12/28/1988 | CN88103797A New method of crystallizing diammonium phosphate without freezing and evaporation |
| 12/27/1988 | US4794171 Chromatographic separation of biopolymers |
| 12/27/1988 | US4793979 Process for chemical separation of phosphorus ore |
| 12/15/1988 | WO1988009769A1 Solid calcium phosphate materials |
| 12/13/1988 | US4790984 Process for preparing a sodium tripolyphosphate hexahydrate powder |
| 12/13/1988 | US4790983 High absorbtivity sodium tripolyphosphate |
| 12/07/1988 | EP0293939A2 Crystalline aluminophosphate composition |
| 12/07/1988 | EP0293938A1 Crystalline aluminophosphate composition |
| 12/07/1988 | EP0293937A2 Microporous crystalline composite compositions and processes for making them |
| 12/07/1988 | EP0293920A2 Crystalline metal aluminophosphates |
| 12/07/1988 | EP0293919A2 Solution synthesis of aluminophosphate crystalline compositions |
| 12/07/1988 | EP0293439A1 Semi-insulating group iii-v based compositions. |
| 12/06/1988 | US4789535 Absorbents, catalysts |
| 12/06/1988 | US4789534 Pyroysis of metal amide |
| 11/29/1988 | CA1245422A1 Process for making phosphorus pentoxide and optionally phosphoric acid with utilization of the reaction heat |
| 11/22/1988 | CA1245127A1 Defoamer and processing aid for wet process phosphoric acid |
| 11/17/1988 | WO1988008891A1 METHOD OF PURIFYING AND DEPOSITING GROUP IIIa AND GROUP Va COMPOUNDS TO PRODUCE EPITAXIAL FILMS |
| 11/17/1988 | EP0291016A2 Method for producing calcium phosphate-based material |
| 11/15/1988 | US4785031 Stabilized and carried red phosphorus as flame-retardant agent for polymers |
| 11/15/1988 | US4784981 Vanadium/phosphorus mixed oxide catalyst, process for its preparaton and its use |
| 11/15/1988 | CA1244627A1 Process for separating off calcium nitrate tetrahydrate by crystallization |
| 11/09/1988 | EP0289839A2 Process for the purification of phosphorous acid |
| 11/08/1988 | US4783328 Utilization of phosphourus containing by-products |
| 11/08/1988 | CA1244227A1 Process for making alkali metal phosphate solutions containing little fluorine |
| 11/08/1988 | CA1244226A1 Crystalline ferrophosphoaluminate and synthesis thereof |
| 11/08/1988 | CA1244224A1 Silicophosphoaluminates and related crystalline oxides |
| 11/01/1988 | US4781982 Dentifrices |
| 11/01/1988 | US4781905 Process for producing phosphoric acid and/or phosphates from wet-process phosphoric acid and an extractant therein |
| 11/01/1988 | US4781904 Calcium-phosphate type hydroxyapatite for chromatographic separation and process for producing same |
| 11/01/1988 | US4781900 Process and composition for purifying arsine, phosphine, ammonia, and inert gases to remove Lewis acid and oxidant impurities therefrom |
| 10/25/1988 | US4780296 Melting phosphorite ore in presence of reducing agent and quartzite |
| 10/25/1988 | US4780295 Removing transition metal impurities by treatment with alkali metal salt of phosphoric acid |
| 10/25/1988 | US4780294 Process for making crude phosphoric acid |
| 10/25/1988 | US4780293 Process for the production of Maddrell's salt |
| 10/18/1988 | US4778666 Crystallization method employing microwave radiation |
| 10/12/1988 | EP0171316B1 Process and apparatus for contacting at least two gaseous components reacting at high temperatures |
| 10/12/1988 | CN87108248A Brightening agent for sodium tripolyphosphate |
| 10/12/1988 | CN86108700B Production method of dense multicrystalline hydroxyl apatite particles |
| 10/12/1988 | CN85100516B Manufacture technology of upgraded ammonium bicarbonate by phosphate addition |
| 10/11/1988 | US4777029 Method of extracting phosphorus from slime |
| 10/11/1988 | US4777028 Process for freeing mineral acids from heavy metals |
| 10/11/1988 | US4777027 Continuous process for preparing phosphoric acid and calcium sulphate |
| 10/11/1988 | US4777026 Carbonation, heat treatment |
| 10/11/1988 | US4777025 Process for making phosphorus pentoxide of diminished reactivity |
| 10/06/1988 | WO1988007498A1 Process for manufacturing a hydroxyapatite material |
| 10/06/1988 | DE3808633A1 Method for producing dissolved salts and acids by ion exchanger resins |
| 10/05/1988 | CN88101594A Stabilized red phosphorus and process for making it |
| 09/28/1988 | EP0284074A1 Process for the production of a hydroxy-apatite material |
| 09/28/1988 | EP0283961A2 Process and composition for purifying arsine, phosphine, ammonia and inert gases to remove Lewis acid and oxidant impurities therefrom |
| 09/28/1988 | EP0283759A1 Stabilized red phosphorus and method for production thereof |
| 09/27/1988 | US4774064 Conversion of calcium compounds into solid and gaseous compounds |
| 09/22/1988 | DE3708140A1 Process for the liquid/liquid extraction of wet-process phosphoric acid with organic solvents |
| 09/21/1988 | CN88101139A Method for removing organic materials dissolved in purified phosphoric acid |
| 09/21/1988 | CN87100240A Production method of sodium hydrogen phosphate from sodium chloride |
| 09/20/1988 | US4772296 Method of purifying and depositing group IIIa and group Va compounds to produce epitaxial films |
| 09/14/1988 | EP0282218A2 Layered divalent metal compositions |
| 09/14/1988 | EP0282003A2 Method for removing organic materials dissolved in purified phosphoric acid |
| 09/14/1988 | CN87102156A Production technique of calcium superphosphate fodder |
| 09/13/1988 | US4770865 Methods for the preparation of moisturized compositions of hydrate-forming polyphosphate |
| 09/13/1988 | US4770860 From algae, for prosthesis |
| 09/13/1988 | CA1241943A1 Molecular sieve compositions |