| Patents for C01B 25 - Phosphorus; Compounds thereof (12,526) |
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| 09/07/1988 | EP0169842B1 Method for the preparation of phosphoric acid and calcium sulphate |
| 09/06/1988 | US4769226 Purification of wet-process phosphoric acid |
| 09/06/1988 | CA1241628A1 Molecular sieve compositions |
| 09/06/1988 | CA1241627A1 Molecular sieve compositions |
| 09/06/1988 | CA1241522A1 Ammonia scavenger |
| 09/06/1988 | CA1241521A1 Ammonia scavenger |
| 08/31/1988 | EP0280077A2 Tooth-pastes and cleansing agent for tooth-pastes based on dicalciumphosphat-dihydrat and a preparation method for such a cleansing-agent |
| 08/24/1988 | EP0279187A2 Method for the production of titanium-free phosphoric acid |
| 08/24/1988 | CN87107537A Improved pipe reactor for the mfr. of ammonium phosphates containing ammonium sulfate |
| 08/23/1988 | CA1240824A1 Apparatus for making alkali metal polyphosphates |
| 08/17/1988 | CN87108362A Process for preparation of diolefins |
| 08/09/1988 | US4762697 Boiling off yellow phosphorus, combustion in air of remaining phosphorus |
| 08/09/1988 | US4762693 Process for working up heavy metal-containing residues originally from the decontamination of crude phosphoric acid |
| 08/09/1988 | US4762692 Process for the precipitation and separation of cadmium sulphide from the raffinates derived from phosphoric acid purification |
| 08/09/1988 | US4762690 Crandallites |
| 08/02/1988 | US4761395 Process and composition for purifying arsine, phosphine, ammonia, and inert gases to remove Lewis acid and oxidant impurities therefrom |
| 08/02/1988 | US4761271 Method for treating destabilized, fire-involved elemental phosphorus |
| 08/02/1988 | CA1239923A1 Silica intercalated crystalline zirconium phosphate- type materials |
| 07/26/1988 | US4759920 Reacting monosodium sulfate in two stages with phosphates in presence of phosphoric acid, separating formed calcium sulfate, neutralizing and crystallizing |
| 07/26/1988 | US4759919 Chromium-aluminum-phosphorus-oxide molecular sieve compositions |
| 07/26/1988 | US4759913 Centrifuging and removing |
| 07/26/1988 | CA1239527A1 Low volatile fluorine process for making elemental phosphorus |
| 07/20/1988 | CN87107538A New pipe reactor |
| 07/19/1988 | US4758412 Production of rare earth hydroxides from phosphate ores |
| 07/19/1988 | US4758261 From weak phosphoric acid and aqueous ammonia solutions in in scrubber |
| 07/14/1988 | DE3729756A1 Process for producing phosphorus from an aqueous suspension of a phosphorus sludge |
| 07/13/1988 | EP0274177A2 Process for the production of highly concentrated phosphoric acid |
| 07/05/1988 | US4755367 Adding aqueous phosphoric acid and suspension of precipitated chalk to dicalcium phosphate dihydrate suspension to form precipitate, removing amount equal to addition, separating |
| 06/30/1988 | WO1988004830A1 Semi-insulating group iii-v based compositions |
| 06/29/1988 | EP0273014A2 Plant pathogenic fungizide based upon the salts of a pyrophosphorous acid, and its application |
| 06/29/1988 | EP0272984A2 Conversion of calcium compounds into solid and gaseous compounds |
| 06/29/1988 | EP0272974A2 Process of neutralisation of acids by ammoniac |
| 06/29/1988 | EP0272663A1 Process for preparing isoprene |
| 06/29/1988 | CN86108700A Production method of dense multicrystalline hydroxyl apatite particles |
| 06/28/1988 | CA1238471A1 Polymerization of cyclic dihalophosphazene oligomers |
| 06/28/1988 | CA1238470A1 Crystalline ferroaluminophosphates |
| 06/22/1988 | EP0272183A1 Production of ammonium phosphates containing ammonium sulphate |
| 06/22/1988 | CN87102928A Process for the production of highly concentrated phosphoric acid |
| 06/21/1988 | US4752457 Water-soluble calcium salt, calcium ion complexing agent, water-soluble phosphate and hydrogen peroxide |
| 06/15/1988 | EP0271472A2 Process for the preparation of crystalline calcium sodium metaphosphate |
| 06/15/1988 | EP0271471A2 Process for the preparation of asbestiform crystalline calcium sodium metaphosphate fiber |
| 06/15/1988 | CN87106257A Hcl-f circulating method for producing potassium orthophosphate |
| 06/15/1988 | CN87105401A Treatment of phrophoric elemental phosphorus-containing material |
| 06/14/1988 | US4751066 Process for preparing alkali metal phosphate |
| 06/01/1988 | EP0269385A2 Process for manufacture of composite oxide |
| 06/01/1988 | EP0268938A2 A lamina and a cosmetic comprising the same |
| 05/24/1988 | US4746632 Fluormica, fluoramphibole, canastite, fluorrichterite, fluorapatite or spodumene with molybdenum, tun-sten and-or arsenic oxide glass fibers |
| 05/24/1988 | US4746499 Portable vehicle with a scrubber source of oxygen |
| 05/24/1988 | US4746396 Nonlinear optical properties |
| 05/17/1988 | US4744971 Condensing phosphorus gas |
| 05/17/1988 | US4744965 Process for producing granular diammonium phosphate |
| 05/11/1988 | EP0266597A2 Process for removing metallic compounds from dust produced in the electrothermic production of yellow phosphorus |
| 05/10/1988 | US4743438 Selectively dissolving calcium and phosporus values |
| 05/10/1988 | US4743274 Oral composition and abrasive therefor |
| 05/05/1988 | DE3636389A1 Process for the precipitation and removal of cadmium from the raffinates of phosphoric acid purification |
| 05/04/1988 | EP0265951A2 Granular tricalcium phosphate compositions suitable for direct compression tableting |
| 05/04/1988 | EP0265945A2 Process for producing calcium phosphate |
| 05/04/1988 | EP0265667A1 Method of producing microsized amorphous particles of metal phosphate |
| 05/04/1988 | CN87200320U Auto-controller for phosphorus electric stove |
| 05/04/1988 | CN87106031A Moisturized compositions of hydrateforming phosphates and methods for preparation thereof |
| 05/03/1988 | CA1235961A1 Process for making pulverulent ammonium polyphosphates stable to hydrolysis |
| 04/14/1988 | DE3640270C1 Process and apparatus for mixing sulphuric acid and returned phosphoric acid |
| 04/06/1988 | CN86106453A Liquid extractant c6101-c6121 for phosphoric acid |
| 04/05/1988 | US4735857 Bone replacements secured to substrate on application of heat and pressure |
| 03/30/1988 | EP0261458A1 Assemblage of hydroxyl apatite particles and liquid chromatography column containing the same |
| 03/29/1988 | US4734538 Contacting aldehydes with a non-zeolitic molecular sieve |
| 03/29/1988 | US4734214 Process for the preparation of high absorptive sodium tripolyphosphate hexahydrate |
| 03/29/1988 | US4734136 Heat resistant yellow pigments, processes for their preparation and their use |
| 03/23/1988 | EP0260616A2 Process for treating wet process phosphoric acid |
| 03/23/1988 | CN87104924A Novel aluminophosphate composition alpo4-41 |
| 03/22/1988 | US4732745 Sulfiding phosphorus melts |
| 03/22/1988 | CA1234274A1 Crystalline metal aluminophosphates |
| 03/16/1988 | EP0260063A2 Synthesis of inorganic crystalline fibers |
| 03/09/1988 | EP0259291A2 Moisturized compositions of hydrateforming phosphates and methods for preparation thereof |
| 03/08/1988 | US4729838 On substrate crystals |
| 03/02/1988 | EP0257827A1 Treatment of pyrophoric elemental phosphorus-containing material |
| 03/02/1988 | CN87105796A Method of making inorganically crosslinked layered compounds |
| 02/25/1988 | WO1988001253A1 Process for producing nitrogen dioxide rich gas or pure oxygen |
| 02/25/1988 | WO1988001200A1 Method of making inorganically crosslinked layered compounds |
| 02/24/1988 | EP0256840A2 Process for separation of acids and corresponding acid metal salts |
| 02/18/1988 | DE3627429A1 Verfahren zur herstellung von stickstoffdioxid-reichgas Process for the preparation of nitrogen dioxide-rich gas |
| 02/16/1988 | US4725369 Process for the preparation of substantially crystalline calcium sodium metaphosphate |
| 02/16/1988 | US4725368 Process for the preparation of substantially crystalline calcium sodium metaphosphate |
| 01/27/1988 | EP0254075A1 Crystalline aluminophosphate of the molecular-sieve type, and method for its preparation |
| 01/27/1988 | CN86104847A Process for preparing calcium polyphosphate |
| 01/26/1988 | US4721615 Dentifrices |
| 01/26/1988 | US4721608 Spheroidal alkali metal polyphosphates of low apparent density, and process for making them |
| 01/20/1988 | EP0253454A1 Process for the removal of heavy metals from acid, phosphate-containing aqueous media |
| 01/20/1988 | EP0253137A2 Process for the oxydation of hydrogen sulfide contained in Phosphoric acid |
| 01/19/1988 | US4720575 H8 PMo10 VO39 and its anhydride, PMo10 VO35 and preparation therewith of methacrylic acid and its lower alkyl ester |
| 01/19/1988 | US4720380 Hydrogen-phosphide releasing compositions and processes for their production and use |
| 01/12/1988 | CA1231237A1 Enriched phosphate ore hot compaction procss without preliminary mixing |
| 01/07/1988 | EP0250710A2 Process for the precipitation and separation of cadmium sulphide from the raffinates of the purification of phosphoric acid |
| 01/05/1988 | US4717558 Phosphorus recovery from phosphorus-containing pond sludge |
| 01/05/1988 | US4717557 Spheroidal alkali metal polyphosphates of low apparent density, and process for making them |
| 01/05/1988 | US4717556 Method for producing of β-tricalcium phosphate |
| 01/05/1988 | US4717513 Silica intercalated crystalline zirconium phosphate-type materials |
| 01/05/1988 | US4717487 Process for the preparation of asbestiform crystalline calcium sodium metaphosphate fiber |
| 01/05/1988 | CA1230958A1 Production of phosphates from alkali-processed phosphate rock |
| 12/29/1987 | US4716181 Macroreticulate polymers functionalized with arsenic or phosphorus |