公开(公告)号：DE59705786D1

公开(公告)日：2002-01-24

申请号：DE59705786

申请日：1997-08-06

Applicant: BASF AG

Inventor： BARTH THOMAS ,  RIEBER NORBERT ,  GOLD EVAN ,  DRESSEL JUERGEN ,  ERHARDT KLAUS ,  HORCHLER VON LOCQUENGH KLAUS ,  LEIBOLD EDGAR ,  RITTINGER STEFAN

IPC: C05F3/00 ,  C05G3/00 ,  C05G3/90 ,  C05G5/00 ,  C07D231/12 ,  C07D231/16 ,  C07D321/12 ,  C07D521/00 ,  C05G3/08

Abstract: The use of inorganic or organic poly acids is claimed for treating mineral fertilisers containing a nitrification inhibitor. The use of compounds of formula (I) is claimed as nitrification inhibitors. R1 = H, halo or 1-4C alkyl; R2 = 1-4C alkyl; R3 = H or CH2OH, and when R3 = H, the compound may be converted to a phosphoric acid salt. A mineral fertiliser containing a poly acid and optionally (I) is also claimed. 3,4-dimethylpyrazole (Ia), 4-chloro-3-methyl-pyrazole (Ib), N-hydroxymethyl-3,4-dimethylpyrazole (Ic), N-hydroxymethyl-4-chloro-3-methylpyrazole (Id), acid addition salts of (Ic) and (Id), and mixtures of two or more of (Ia)-(d) are new.

公开(公告)号：DE59711433D1

公开(公告)日：2004-04-22

申请号：DE59711433

申请日：1997-08-06

Applicant: BASF AG

Inventor： BARTH THOMAS ,  RIEBER NORBERT ,  GOLD EVAN ,  DRESSEL JUERGEN ,  ERHARDT KLAUS ,  HORCHLER VON LOCQUENGH KLAUS ,  LEIBOLD EDGAR ,  RITTINGER STEFAN

IPC: C05F3/00 ,  C05G3/00 ,  C05G3/90 ,  C05G5/00 ,  C07D231/12 ,  C07D231/16 ,  C07D321/12 ,  C07D521/00 ,  C05G3/08

Abstract: The use of inorganic or organic poly acids is claimed for treating mineral fertilisers containing a nitrification inhibitor. The use of compounds of formula (I) is claimed as nitrification inhibitors. R1 = H, halo or 1-4C alkyl; R2 = 1-4C alkyl; R3 = H or CH2OH, and when R3 = H, the compound may be converted to a phosphoric acid salt. A mineral fertiliser containing a poly acid and optionally (I) is also claimed. 3,4-dimethylpyrazole (Ia), 4-chloro-3-methyl-pyrazole (Ib), N-hydroxymethyl-3,4-dimethylpyrazole (Ic), N-hydroxymethyl-4-chloro-3-methylpyrazole (Id), acid addition salts of (Ic) and (Id), and mixtures of two or more of (Ia)-(d) are new.