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    METHOD FOR OBTAINING A UREA-BASED FERTILIZER COMPOSITION COMPRISING A (THIO)PHOSPHORIC ACID TRIAMIDE UREASE INHIBITOR VIA PROVIDING A LIQUID OR SOLID PREMIX WITH SPECIFIC WEIGHT RATIOS
    5.
    发明专利
    METHOD FOR OBTAINING A UREA-BASED FERTILIZER COMPOSITION COMPRISING A (THIO)PHOSPHORIC ACID TRIAMIDE UREASE INHIBITOR VIA PROVIDING A LIQUID OR SOLID PREMIX WITH SPECIFIC WEIGHT RATIOS 未知

    公开(公告)号：CA3094223A1

    公开(公告)日：2019-10-17

    申请号：CA3094223

    申请日：2019-04-01

    Applicant: BASF SE

    Inventor： SCHMID MARKUS ,  ZERULLA WOLFRAM ,  TRESCH NADINE ,  STAAL MAARTEN ,  THIEL UWE ,  PASDA GREGOR ,  SCHNEIDER KARL-HEINRICH

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

    Abstract: Method for obtaining a fertilizer composition comprising (iii)at least one urea-containing fertilizer (1); and (iv)at least one (thio)phosphoric acid triamide(2) according to general formula (I) wherein X1 is O or S; R1 is C1-C20-alkyl, C3-C20-cycloalkyl, C6-C20-aryl, C6-C20-aryl-C1-C4-alkyl, or C1-C6- (di)alkylaminocarbonyl; R2 is H, C1-C20-alkyl, C3-C20-cycloalkyl, C6-C20-aryl, C6-C20-aryl-C1-C4-alkyl, or C1-C6- (di)alkylaminocarbonyl; or R1 and R2 together with the nitrogen atom linking them define a 5- or 6-membered sat- urated or unsaturated heterocyclic radical, which optionally comprises 1 or 2 further heteroatoms selected from the group consisting of N, O, and S; and R3, R4, R5, and R6 are independently of each other selected from the group consisting of H and C1-C4-alkyl; comprising the steps: a) providing a solid and/or liquid premix (P) wherein the premix (P) comprises at least one urea-containing fertilizer (1) and at least one (thio)phosphoric acid triamide (2) in a weight ratio of 1:6 to 400:1 based on the total weight of all urea-containing fertilizers (1) and of all (thio)phosphoric acid triamides (2), wherein at least 85 wt% of the premix (P) (a1) is not a melt; and (a2) is not obtained via melting of any of the at least one urea-containing fertilizer (1) or melting of any of the at least one (thio)phosphoric acid triamide (2); and (a3) is not obtained via dissolving or mixing the at least one (thio)phosphoric acid tri- amide (2) in/with a solvent (S) having a boiling point of less than 100°C, and b) adding the premix (P) to a melt (Q) comprising urea-containing fertilizer (1 ) by forming a mixture (M) comprising the at least one urea-containing fertilizer (1) and the at least one (thio)phosphoric acid triamide (2), wherein the residence time of the thus formed mixture (M) before granulation is adjusted such that the at least one (thio)phosphoric acid tri- amide (2) is not or almost not decomposed in the mixture (M); and c) forming solid fertilizer granules by use of the mixture (M) comprising the at least one urea-containing fertilizer (1) and the at least one (thio)phosphoric acid triamide (2).

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