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公开(公告)号：US20220388919A1
公开(公告)日：2022-12-08
申请号：US17775366
申请日：2020-11-13
Applicant: Yara International ASA
Inventor： Filip COLPAERT , Ellen DONKERS , Ruud VAN BELZEN , Tom VAN DE WALLE , Paul VAN ELSLANDE
Abstract: The invention relates to a solid, particulate, urea-based blend composition comprising a urea-based compound in particulate form, a component comprising an ammonium source in particulate form, a urease inhibitor of the type phosphoric triamide, an alkaline or alkaline-forming inorganic or organic compound that is able to interact with the component comprising an ammonium source in particulate form, selected from the group consisting of metal oxides, metal carbamates, metal hydroxides, metal acetates and any mixtures thereof, or from the group of organic bases consisting of ammonia, amines, amides, adenines, amidines, guanidines, anilines, carbamates, thiazoles, triazoles, pyridines; imidazoles, benzimidazoles, histidines, phosphazenes, and any mixture thereof, wherein the urea-based blend composition further comprises a cation source, different from the alkaline or alkaline-forming inorganic or organic compound, comprising a cation selected from the group consisting of Fe2+, Fe3+, Mn2+, Zn2+, Cu+, Cu2+, Ni2+, Ag+, Pt2+, Ru2+, Co3+ and Cr3+.
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公开(公告)号：US20220289669A1
公开(公告)日：2022-09-15
申请号：US17633356
申请日：2020-08-20
Applicant: Yara International ASA
Inventor： Adrian BYNES , Shreyas AMIN , Ruud VAN BELZEN
IPC: C07C273/04 , C07C273/16 , B01D3/14
Abstract: The invention relates to a method for producing a urea solution with a target urea concentration using water flows recovered from the urea production process. At least part of the water flows recovered from the urea production process are only partially purified to produce the urea solution. The invention further relates to a process condensate treatment plant to implement the method for producing a urea solution with a target urea concentration, and a urea production plant comprising such process condensate treatment plant.
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3.发明公开公开(公告)号：US20240300864A1
公开(公告)日：2024-09-12
申请号：US18268109
申请日：2021-12-21
Applicant: Yara International ASA
Inventor： Ruud VAN BELZEN , Filip COLPAERT , Francois LEDOUX
Abstract: A method is disclosed for the manufacture of a homogeneous, solid, particulate, urea-based composition comprising urea and an additive in a urea production plant comprising at least an evaporator section and a particulation section, further comprising one or more of a mixing section, an effluent gas treatment section and a scrubber solution storage section, comprising the steps of:
(i) concentrating a urea melt of about 80 weight % to about 95 to 99 weight % of urea;
(ii) particulating a urea or urea-based melt into a urea or urea-based composition;
(iii) mixing the urea melt of about 95 to 99 weight % with other fertilizer components to produce a urea-based melt;
(iv) treating the effluent gas from the particulation section comprising urea-based dust particles and ammonia gas with water to produce a scrubber solution; and
(v) storing the scrubber solution from the effluent gas treatment section.-
公开(公告)号：US20210155582A1
公开(公告)日：2021-05-27
申请号：US16982242
申请日：2019-03-20
Applicant: YARA INTERNATIONAL ASA
Inventor： Ruud VAN BELZEN , Howard VOLKE , Erika WINNE
IPC: C07C273/02 , C01C1/242 , B01J19/24 , B01J8/06
Abstract: The present invention relates to a method for the production of an urea ammonium sulphate (UAS) composition, wherein said UAS composition comprises 1 to 40 weight % of ammonium sulphate (AS) relative to the total weight of the UAS composition, from sulphuric acid, ammonia and/or ammonium carbamate, and urea, in a pipe reactor comprising at least a reactor section wherein feeds of sulphuric acid and/or ammonium bisulphate, ammonia and/or ammonium carbamate, and urea are combined to obtain said urea ammonium sulphate (UAS) composition, comprising the step of including a viscosity-reducing agent, selected from the group of water soluble aluminium salts, into one or more of said feeds. Preferably, said agent is an aluminium sulphate (AluS). The present invention also relates to a pipe reactor for the production of a urea ammonium sulphate (UAS) composition from sulphuric acid, ammonia and/or ammonium carbamate, and urea, the pipe reactor comprising at least a reactor section wherein continuous feeds of sulphuric acid and/or ammonium bisulphate, ammonia and/or ammonium carbamate and urea are combined to obtain said urea ammonium sulphate (UAS) composition, wherein the pipe reactor further comprises means for supplying an aqueous solution of a viscosity-reducing agent to the urea solution upstream of said pipe reactor section, which agent reduces the viscosity of said UAS solution or slurry. The present invention also relates to the use of aluminium sulphate as viscosity-reducing agent in in a method for the production of urea ammonium sulphate (UAS) composition, wherein said UAS composition comprises 1 to 40 weight % of ammonium sulphate (AS) relative to the total weight of the UAS composition, from sulphuric acid, ammonia and/or ammonium carbamate, and urea, in a pipe reactor comprising at least a reactor section wherein continuous feeds of sulphuric acid and/or ammonium bisulphate, ammonia and/or ammonium carbamate and urea are combined to obtain said urea ammonium sulphate (UAS) composition.
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公开(公告)号：US20210070669A1
公开(公告)日：2021-03-11
申请号：US17053330
申请日：2019-05-09
Applicant: YARA INTERNATIONAL ASA
Inventor： Ruud VAN BELZEN , Filip COLPAERT
Abstract: The invention relates to a particulate urea-based blend composition comprising a urea-based compound in particulate form and one or more components in particulate form, selected from the group of nitrates, phosphates, sulphates and chlorides, and a urease inhibitor of the type phosphoric triamide, and a magnesium sulphate, wherein the urea-based blend composition is further characterized in that it comprises an alkaline or alkaline-forming compound, selected from the group of calcium oxide, zinc oxide, magnesium oxide, calcium carbonate, and mixtures thereof. The composition according to the invention has improved properties for reducing ammonia loss by urease activity in the soil and is in particular suitable as a fertilizer. The invention further relates to a method for the manufacture of said urea-based blend composition, as well as to a composition of kit of parts comprising an amount of a) magnesium sulphate; b) a urease inhibitor of the type phosphoric triamide, preferably N-(n-butyl) thiophosphoric triamide (nBTPT); c) an alkaline or alkaline-forming compound, selected from the group of calcium oxide, zinc oxide, magnesium oxide, calcium carbonate, and mixtures thereof, and d) optionally, one or more anti-caking and/or moisture-repellent and/or anti-dust compounds.
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Patent Agency Ranking
公开(公告)号：US20250144053A1
公开(公告)日：2025-05-08
申请号：US18837946
申请日：2023-02-17
Applicant: Yara International ASA
Inventor： Isabel RUIZ , Inés MARTINEZ-LUENGAS , Laura PIRRO , Ruud VAN BELZEN , Anand MOHAN , Ignacio R. IPHARRAGUERRE
Abstract: A ruminant feed supplement composition including urea, biuret and one or more nitrate compounds. The present disclosure further relates to the use of such a ruminant feed supplement composition as a NPN-source to improve nitrogen nutrition and to reduce methane emissions and further to improve the efficiency of microbial protein synthesis (EMPS) by rumen microbes in a ruminant animal; and/or to decreasing the acetate to propionate ratio produced by rumen microbes in a ruminant animal; and/or to increasing the (in vitro) dry matter (DM) and organic matter (OM) digestibility; and/or to improve the average daily gain (ADG) of a ruminant animal; and/or to improve the feed efficiency of a ruminant animal.
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公开(公告)号：US20250084032A1
公开(公告)日：2025-03-13
申请号：US18682550
申请日：2022-08-26
Applicant: Yara International ASA
Inventor： Lino Giovanni PORRO , Ruud VAN BELZEN , Patrice MALO , Sven KOHNKE , Werner RUNGGER , Klaus WEIGL , Vincent DUPONCHEL
IPC: C07C273/14 , B01D53/56
Abstract: A method for producing a SNCR/SCR solution, comprising the steps of: a) reacting ammonia and carbon dioxide in a high pressure section, thereby obtaining an aqueous composition comprising urea and ammonium salts; b) processing the aqueous composition obtained in step a), thereby obtaining a first aqueous solution comprising urea, and a second aqueous solution comprising ammonium salts; and c) diluting the second aqueous solution comprising ammonium salts obtained in step b) with a third aqueous solution, thereby producing the SNCR/SCR solution. The present disclosure also provides the use of an aqueous stream comprising ammonium salts from a urea-producing plant for producing a SNCR/SCR solution.
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公开(公告)号：US20220298085A1
公开(公告)日：2022-09-22
申请号：US17629922
申请日：2020-08-12
Applicant: YARA INTERNATIONAL ASA
Inventor： Filip COLPAERT , Ruud VAN BELZEN
Abstract: The invention relates to a solid, particulate, homogeneous urea-based composition comprising urea in particulate form and 0.0001 to 1 weight % of a urease inhibitor of the type phosphoric triamide, in particular N-(n-butyl) thiophosphoric triamide (nBTPT), wherein the urea-based composition is further characterized in that it comprises a magnesium sulfate. The composition according to the invention has been stabilized against the degradation of a urease inhibitor of the type phosphoric triamide, in particular N-(n-butyl) thiophosphoric triamide (nBTPT) in the presence of urea. The invention further relates to a method for the manufacture of the claimed solid, particulate, homogeneous urea-based composition.
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公开(公告)号：US20250161245A1
公开(公告)日：2025-05-22
申请号：US18838357
申请日：2023-02-17
Applicant: Yara International ASA
Inventor： Isabel RUIZ , Inés MARTINEZ-LUENGAS , Laura PIRRO , Ruud VAN BELZEN , Anand MOHAN , Ignacio R. IPHARRAGUERRE
IPC: A61K31/17 , A23K20/105 , A23K20/116 , A23K50/15 , A61K31/53 , A61P1/14
Abstract: The present disclosure relates to the use of a mixture of urea, biuret and N-containing by-products of the biuret production out of urea, as a NPN-source in a ruminant feed supplement composition (i) to reduce methane emission produced by ruminant animals, (ii) to decrease the acetate to propionate ratio produced by rumen microbes in a ruminant, (iii) to improve the EMPS, (iv) to increase the DM and OM digestibility, and/or (v) to improve the dry matter intake (DMI) of ruminant animal. The present disclosure further relates to a ruminant feed supplement composition comprising urea, biuret and N-containing by-products of the biuret production out of urea, as well as to methods of feeding a ruminant with a feed comprising said ruminant feed supplement composition.
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10.发明公开公开(公告)号：US20240051888A1
公开(公告)日：2024-02-15
申请号：US18265351
申请日：2021-12-21
Applicant: YARA INTERNATIONAL ASA
Inventor： Ruud VAN BELZEN , Filip COLPAERT , Francois LEDOUX
Abstract: A method is disclosed for the manufacture of a homogeneous, solid, particulate, urea-based composition comprising urea and an additive in a urea production plant comprising at least an evaporator section and a particulation section, further comprising one or more of a mixing section, an effluent gas treatment section and a scrubber solution storage section, comprising the steps of:
(i) concentrating a urea melt of about 80 weight % to about 95 to 99 weight % of urea;
(ii) particulating a urea or urea-based melt into a urea or urea-based composition;
(iii) mixing the urea melt of about 95 to 99 weight % with other fertilizer components to produce a urea-based melt;
(iv) treating the effluent gas from the particulation section comprising urea-based dust particles and ammonia gas with water to produce a scrubber solution; and
(v) storing the scrubber solution from the effluent gas treatment section.
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