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    IMPROVED UREA-BASED BLEND COMPOSITION AND METHOD FOR THE MANUFACTURE THEREOF
    2.
    发明申请
    IMPROVED UREA-BASED BLEND COMPOSITION AND METHOD FOR THE MANUFACTURE THEREOF 审中-公开

    公开(公告)号：US20180297903A1

    公开(公告)日：2018-10-18

    申请号：US15767446

    申请日：2016-11-10

    Applicant: YARA INTERNATIONAL ASA

    Inventor： Francois Ledoux ,  Filip Colpaert ,  Ruud Van Belzen

    IPC: C05C9/00 ,  C05G3/08

    Abstract: The invention relates to a solid, particulate, urea-based blend composition comprising a urea-based compound in particulate form, 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, in particular N-(n-butyl) thiophosphoric triamide (nBTPT), wherein the urea-based blend composition is further characterized in that it comprises one or more reactive alkaline or alkaline-forming inorganic or organic compounds. 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). The invention further relates to a method for the manufacture of the claimed solid, particulate, urea-based blend composition.

    IMPROVED UREA AMMONIUM SULPHATE-BASED COMPOSITION AND METHOD FOR THE MANUFACTURE THEREOF
    3.
    发明申请
    IMPROVED UREA AMMONIUM SULPHATE-BASED COMPOSITION AND METHOD FOR THE MANUFACTURE THEREOF 审中-公开

    公开(公告)号：US20180258002A1

    公开(公告)日：2018-09-13

    申请号：US15754312

    申请日：2016-09-07

    Applicant: YARA INTERNATIONAL ASA

    Inventor： Filip Colpaert ,  Francois Ledoux ,  Ruud Van Belzen

    IPC: C05C9/00 ,  C05C3/00 ,  C05G3/00 ,  C05G3/08

    CPC classification number: C05C9/005 ,  A23K20/10 ,  A23K40/10 ,  A23K40/30 ,  C05C3/005 ,  C05G3/0035 ,  C05G3/08 ,  C05D9/02

    Abstract: The invention relates to a homogeneous, solid, particulate, urea ammonium sul¬phate-based composition comprising urea ammonium sulphate and a urease inhibitor of the type phosphoric triamide, wherein the urea ammonium sulphate-based composition is further characterized in that one or more of the following measures applies: a) it comprises 5 weight % or less, relative to the total weight of the composition, of one or more alkaline or alkaline-forming inorganic or organic compounds that is able to interact with ammonium sulphate; b) the urease inhibitor of the type phosphoric triamide is in a solid particulate form; c) an anticaking and/or moisture repellent coating is applied onto the urea am¬monium sulphate particulate material. 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 ferti¬lizer. The invention further relates to a method for the manufacture of a homogeneous, solid, particulate urea ammonium sulphate-based composition comprising urea, ammonium sulphate and a urease inhibitor of the type phosphoric triamide, in particular N-(n-butyl) thiophosphoric triamide (nBTPT), as well as to a composi¬tion of kit of parts comprising: a) one or more alkaline or alkaline-forming inorganic compounds that is able to interact with ammonium sulphate; b) the urease inhibitor of the type phosphoric triamide in solid particulate or liquid form, preferably wherein the urease inhibitor is N-(n-butyl) thiophosphoric tri¬amide (nBTPT); c) optionally, one or more anticaking and/or moisture repellent compounds.

    Urea-based blend composition and method for the manufacture thereof
    4.
    发明授权
    Urea-based blend composition and method for the manufacture thereof 有权

    公开(公告)号：US11072567B2

    公开(公告)日：2021-07-27

    申请号：US15767446

    申请日：2016-11-10

    Applicant: YARA INTERNATIONAL ASA

    Inventor： Francois Ledoux ,  Filip Colpaert ,  Ruud Van Belzen

    IPC: C05G3/90 ,  C05C9/00 ,  C07F9/22

    Abstract: The invention relates to a solid, particulate, urea-based blend composition comprising a urea-based compound in particulate form, 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, in particular N-(n-butyl) thiophosphoric triamide (nBTPT), wherein the urea-based blend composition is further characterized in that it comprises one or more reactive alkaline or alkaline-forming inorganic or organic compounds. 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). The invention further relates to a method for the manufacture of the claimed solid, particulate, urea-based blend composition.

    Composition comprising ammonium nitrate-based particles and a gelling agent
    5.
    发明授权
    Composition comprising ammonium nitrate-based particles and a gelling agent 有权

    公开(公告)号：US10017428B2

    公开(公告)日：2018-07-10

    申请号：US15325793

    申请日：2015-07-14

    Applicant: YARA INTERNATIONAL ASA

    Inventor： Terje Tande ,  Francois Ledoux

    IPC: C05G3/00 ,  C01C1/18 ,  C05C1/02

    CPC classification number: C05G3/0047 ,  C01C1/18 ,  C01C1/185 ,  C05C1/02 ,  C05G3/0029 ,  C05G3/0041

    Abstract: The present invention relates to a solid, particulate, non-explosive composition comprising ammonium nitrate-based particles, in particular a fertilizer composition, of which, on the one hand, the potential misuse as a precursor for an explosive composition is limited without, on the other hand, hampering its legitimate use by farmers for food production. The solid, particulate, non-explosive composition further comprises a gelling agent which is able to form a substantially water-insoluble and non-filterable hydrogel after the solid fertilizer composition is contacted with water. The gelling agent is selected from the group of gum-based gelling agents, in particular xanthan gum-based agents and guar gum-based agents, most preferably is a xanthan gum-based agent.

    Urea passivation technique and new product passivated urea, to make urea or urea-based compound universally blendable
    6.
    发明授权
    Urea passivation technique and new product passivated urea, to make urea or urea-based compound universally blendable 有权
    尿素钝化技术和新产品钝​​化尿素，使尿素或脲基化合物普遍混合

    公开(公告)号：US09487452B2

    公开(公告)日：2016-11-08

    申请号：US14422937

    申请日：2013-08-28

    Applicant: Yara International ASA

    Inventor： Francois Ledoux

    IPC: C05C9/00 ,  C05C1/00 ,  C05C5/00 ,  C05C5/04 ,  C05B1/02 ,  C05G3/00 ,  C07C273/14

    CPC classification number: C05G3/0041 ,  C05B1/02 ,  C05C1/00 ,  C05C9/00 ,  C05C9/005 ,  C05G3/0088 ,  C07C273/14 ,  C05C5/00 ,  C05C5/04 ,  C05D5/00

    Abstract: The invention concerns a method of producing passivated urea or urea based compounds for fertilizer blends wherein the urea particles are treated with a mineral acid that reacts with urea and creates a grasping layer. Thereafter a solid base in powder form is added in excess to the particles to coat the acidified particle surface. The invention also concerns a fertilizer blend comprising the passivated urea or urea based compounds with one or more of AN or AN-based compound, NS products, superphosphates, and more generally with a priori most compounds that urea is susceptible to react with when in direct contact. A safe blend comprises more than 40 weight % of the passivated urea.

    Abstract translation: 本发明涉及一种生产用于肥料混合物的钝化的脲或脲基化合物的方法，其中用与尿素反应的无机酸处理尿素颗粒并产生抓握层。 此后将粉末形式的固体碱过量加入到颗粒中以涂覆酸化的颗粒表面。 本发明还涉及一种肥料混合物，其包含钝化的脲或脲基化合物与一种或多种AN或AN-基化合物，NS产物，过磷酸盐，更通常与先前的大多数化合物一起，尿素易于与直接反应 联系。 安全混合物包含超过40重量％的钝化尿素。

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