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| Patents for C05B 1 - Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly (522) |
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| 04/10/1984 | US4442081 Process for producing a stabilized phosphoric acid | | 04/03/1984 | US4440560 Humic acid-fused phosphate chelate compound | | 03/06/1984 | US4435372 Production of purified strong wet-process phosphoric acid | | 12/08/1983 | WO1983004248A1 Artificial fertilizer | | 10/12/1983 | EP0091043A1 Method of separating heavy metal compounds from intermediate products of phosphatic fertilizer manufacture | | 09/20/1983 | US4405575 Method of defluorinating phosphates | | 07/12/1983 | US4393030 Desliming | | 09/07/1982 | US4348218 Fertilizer briquette adapted to be hammered into the ground | | 05/19/1981 | CA1101188A1 Treatment of phosphoric acid | | 02/03/1981 | US4248617 Process for producing granular basic phosphate fertilizer | | 09/16/1980 | CA1085582A1 Process for production of fertilizers | | 07/01/1980 | US4210438 Cooling reactor to prevent formation of scale | | 08/08/1979 | EP0003424A1 Phosphate fertilizers and process for preparing them | | 05/22/1979 | US4155742 Water-soluble binder | | 07/18/1978 | US4101637 Reaction of phosphoric acid with lime, limestone, or dolomite | | 06/28/1977 | US4032319 Sulfur coating, phosphate core | | 03/29/1977 | US4014675 Fertilizer stick | | 09/28/1976 | US3983255 Preparation of fertilizer and animal feed from molasses fermentation residue | | 06/08/1976 | US3961932 Complexes of synthetic amino acid chelating agents with zinc, copper or manganese | | 04/13/1976 | US3950495 Method for the continuous preparation of stable aqueous ammonium polyphosphate compositions | | 03/30/1976 | US3947261 Production of ammonium polyphosphate solutions | | 01/20/1976 | US3933459 High-magnesium ammonium polyphosphate solutions |
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