Patents
Patents for C05C 9 - Fertilisers containing urea or urea compounds (2,709)
06/2005
06/29/2005CN1631855A Amino acid-urea compound fertilizer and its preparation method
06/29/2005CN1631853A Potassium sulfate composite fertilizer and its production process
06/29/2005CN1631852A Organic fertilizer and its production process
06/15/2005CN1628084A Method for prodn. of urea fertilizer with elemental sulphur and product thereof
05/2005
05/31/2005US6900162 A coated aggregate material for enhancing the extended delivery of nitrogen needed for plant development and growth, the coated aggregate material having a slow release (extended-release) nitrogen coating of a particulate UF
05/11/2005CN2698785Y Novel leak-free urea nodulizer
05/06/2005WO2005040072A1 A method of improving the properties of urea granules
05/06/2005WO2005040069A1 Method of improving the crushing strength, impact resistance and compressibility of urea, and urea composition
04/2005
04/27/2005CN1609100A Improved method of purifying gas containing urea dust
04/27/2005CN1609073A Composite biological humic acid fertilizer and its production process
04/27/2005CN1609072A Liquid fertilizer specially for water-saving irrigation and its prepn process
04/27/2005CN1609063A Slowly controlled releasing sulfur-containing urea and its prepn process
04/14/2005WO2005033046A1 Method for producing urea based fertiliser granulates, containing dicyandiamide and 1,2,4-triazole as nitrification inhibitors
04/14/2005WO2005032696A1 Method for removing ammonia and dust from a waste gas that results during the production of fertilizers
04/07/2005DE10342551A1 Verfahren zur Herstellung von Dicyandiamid und 1,2,4-Triazol als Nitrifikationshemmer enthaltenden Düngemittelgranulaten auf Harnstoffbasis Process for the preparation of dicyandiamide and 1,2,4-triazole as a nitrification inhibitor-containing urea-based fertilizer granules
03/2005
03/31/2005US20050066697 Slow-release polyurethane(urea) encapsulated fertilizer
03/30/2005CA2482734A1 Slow-release polyure-thane (urea) encapsulated fertilizer
03/23/2005CN1597643A Nimbic coating slow release granular fertilizer
03/23/2005CN1597635A High concentration water solubled nitrogen phosphorus potassium multi element fertilizer
03/16/2005CN1594238A Production process of urea-based compound fertilizer by fused carbamide
03/16/2005CN1594234A Organic selenium biologics and its preparation method, and method for producing selenium-rich vegetable using the same
03/02/2005CN1587224A Composite fertilizer specially for Chinese yam
03/02/2005CN1587211A Process for producing water preserving type film coated urea fertilizer
02/2005
02/23/2005CN1583682A Organic multicomponent granular manure and preparing method thereof
02/23/2005CN1583681A Agricultural composite manure and preparing method thereof
02/16/2005CN1580012A Long-lasting urea
02/16/2005CN1580005A 腐植酸尿素 Humic acid urea
02/03/2005WO2005009925A1 Method and system for treating waste matter from animals containing urea
02/03/2005CA2533660A1 Method and system for treating waste matter from animals containing urea
01/2005
01/26/2005CN1569774A Heavy polymer coated slow-release fertilizer with sulfide as bottom coat
01/26/2005CN1569769A Coated slow-release urea and its preparation method
01/26/2005CN1569763A Triammonium phosphate composite fertilizer and its making process
01/26/2005CN1569752A Ammonium sulphate coated urea granule fertilizer and method for preparing same
01/25/2005CA2164986C Process for the preparation of sulfur coated fertilizers and products produced thereby
01/19/2005CN1185183C Multicomponent granular urea and its production process
01/18/2005CA2240284C Improved formulation for fertilizer additive concentrate
01/13/2005WO2004052096A3 Aqueous delivery systems for water soluble agricultural actives using polymeric dispersants
01/12/2005CN1562914A Long efficient, water retaining rare earth compound mixed fertilizer, and producing technique
01/12/2005CN1562913A Compound fertilizer dedicated to loquat and preparation method
01/12/2005CN1562895A Nodulizer for carbamide urea with no leakage
01/06/2005WO2005000770A1 Process for the production of a fertilizer and fertilizer
01/06/2005CA2529222A1 Process for the production of a fertilizer and fertilizer
12/2004
12/22/2004EP1487761A2 Slow release nitrogen fertilizer
12/22/2004EP1487254A2 Slow release nitrogen seed coat
12/22/2004CN1556074A Granulation method of large particle urea
12/14/2004US6830603 Granular urea with a coating of a binding agent having a boron anion and a hydrogen bonding group
12/14/2004CA2338454C A novel formulation useful as a nitrification and urease inhibitor and a method of producing the same
12/09/2004US20040244448 Heating, mixing , reacting urea with sludge
12/07/2004US6827887 Method for obtaining urea prills
12/01/2004CN1177777C Improved polymer-sulphur-polymer coating fertilizer
11/2004
11/23/2004US6821311 Method for treating fertilizer process solutions
11/10/2004CN1174940C Process for preparing granular composite N-K fertilizer
10/2004
10/20/2004EP0869933A4 Improved formulation for fertilizer additive concentrate
10/06/2004EP1464635A1 Method for obtaining organic acidifying solutions and fertilizers using organic extracts from aqueous wood leaching processes
10/06/2004CN1169756C Liquid urea synergist and its use
09/2004
09/29/2004EP1462565A1 Method for producing a plant nutrition composition from a biopulp filtrate and a formulated plant nutrition so produced
09/29/2004CN1532171A Formula and prepn process of plant nutrition liquid prepared by using plant fiber biological pulping recovery liquid
09/02/2004US20040168493 Condensation of formaldehyde with urea in presence of base to maintain alkaline pH; reaction with ammonia; mixture is exothermically heated
08/2004
08/27/2004CA2458083A1 Urea-formaldehyde plant nutrient solution containing high levels of slow release nitrogen
08/26/2004US20040163434 Fertiliser compositions
08/25/2004CN1163442C Improved formula for fertilizer additive condensate
08/18/2004EP1024691A4 Soluble polymer based matrix for chemically active water insoluble components
08/18/2004CN1521151A Slow release high efficiency compound fertilizer of thio urea phosphor ammonium kalium and its preparing technology
08/17/2004US6777469 Urea condensate-sewer sludge products
08/11/2004EP1351899A4 Sulfur-containing fertilizer composition and method for preparing same
08/11/2004CN1161306C Chinese medicinal stone coated urea and its prepn. method
08/05/2004US20040148991 Mixing water and urea; monitoring temperature; allowing mixture to stand until reaching predetermined temperature; resuming mixing
07/2004
07/28/2004EP1071639B1 Granulation method of urea containing fertilizer
07/22/2004DE10243840B4 Verfahren zur Abtrennung von umweltrelevanten Schwermetallen aus Klärschlammasche A process for separating environmentally relevant heavy metals from sewage sludge ash
07/14/2004CN1157350C Method for preventing urea from caking
07/03/2004CA2454676A1 Method and apparatus for dissolving urea
06/2004
06/24/2004WO2004052096A2 Aqueous delivery systems for water soluble agricultural actives using polymeric dispersants
06/23/2004CN1506335A Synthesis of urea-formaldehyde controlled releasing fertilizer
06/17/2004WO2004050583A1 Nutrient composition comprising an iron chelate
06/17/2004US20040111968 Production and use of a soil amendment made by the combined production of hydrogen, sequestered carbon and utilizing off gases containing carbon dioxide
06/15/2004US6749659 Controlled release rate fertilizers and methods of making same
06/10/2004US20040107753 Aqueous delivery systems for water soluble agricultural actives using polymeric dispersants
06/01/2004CA2312570C Improved polymer-sulphur-polymer coated fertilizers
05/2004
05/06/2004WO2004037747A2 Soil amendment and hydrogen gas produced by pyrolysis of cabonaceous materials
05/06/2004CA2502943A1 The production and use of a soil amendment made by the combined production of hydrogen, sequestered carbon and utilizing off gases containing carbon dioxide
04/2004
04/28/2004EP1220815B1 Method for treating fertilizer process solutions
04/28/2004EP1169280A4 Processes for preparing granular composite fertilizer compositions and products produced thereby
04/28/2004CN1491924A Humic acid long-acting compound fertilizer and its preparing method
04/22/2004US20040074272 Protein supplement in ruminant feeding, and may be incorporated into compound feeds, mineral supplement, high protein and high method of prepaing said product, which consists of urea coated with a primer of cement or an
04/20/2004CA2097870C Timed release of water-soluble plant nutrients
04/14/2004EP1408020A1 Process for controlling inorganizing speed of urea/aliphatic aldehyde condensation product, and process for growing crops
04/07/2004CN2609924Y Urea quick fusion device
03/2004
03/31/2004CN1485303A Nano urea and its preparing process
03/25/2004DE10243840A1 Removing heavy metals from phosphate-containing clear sludge ash to produce fertilizer material by adding environmentally compatible metal chlorides
03/24/2004CN2607371Y Urea granule boiling cooler
03/23/2004US6709685 Dry melt formation without use of water or solvent
03/17/2004CN1142120C Crystalline uric acid fertilizer and its prepn
03/11/2004WO2004020367A1 Fertiliser and feed supplement composition
03/11/2004US20040045331 A controlled release fertilizer material comprising a particulate plant nutrient surrounded by a coating which is the reaction product of a mixture comprising: a polyol, an isocyanate and an organic wax.
02/2004
02/19/2004US20040031303 Granular urea with a coating of a binding agent having a boron anion and a hydrogen bonding group
02/18/2004CN1138728C Method for producing urea-formaldehyde compound fertilizer
02/05/2004US20040023809 Slow release nitrogen coating
01/2004
01/22/2004WO2003082004A3 Slow release nitrogen seed coat
01/14/2004EP1379558A1 A urea-based nitrogenous fertilizer coated with zeolite
01/08/2004WO2004002921A1 Fertilisation of soil
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