公开(公告)号：DE3044903A1

公开(公告)日：1982-07-08

申请号：DE3044903

申请日：1980-11-28

Applicant: BASF AG

Inventor： LEUTNER BERND DIPL CHEM DR ,  PURUCKER BERNHARD DIPL CHEM DR ,  ROTHER EBERHARD DIPL CHEM DR ,  JUERGENS GEERD FRIEDRICH ,  WAGNER DIETER ING GRAD

IPC: C05D9/02

Abstract: A multi-trace element fertilizer which contains magnesium as a further nutrient and in which the complex-forming trace elements are present in the form of anionic chelates with one or more N-carboxyalkylaminoacids is prepared by a process wherein the N-carboxyalkylaminoacids are reacted, in the presence of water, with the trace elements or trace element compounds in a molar ratio of N-carboxyalkylaminoacids to trace elements or trace element compounds of not less than 0.8:1, at least 20% by weight of the trace element compounds being oxides, hydroxides and/or carbonates. At the same time, or subsequently, the pH of the solution is brought to 3.5-6 by adding a member selected from the group consisting of magnesium oxide, hydroxide and carbonate. A maximum of 50 equivalent percent of the magnesium compound may however be replaced by a member selected from the group consisting of alkali metal oxides, hydroxides and carbonates and ammonia.

公开(公告)号：DK152355B

公开(公告)日：1988-02-22

申请号：DK526181

申请日：1981-11-27

Applicant: BASF AG

Inventor： LEUTNER BERND ,  PURUCKER BERNHARD ,  ROTHER EBERHARD ,  JUERGENS GEERD FRIEDRICH ,  WAGNER DIETER

IPC: C05D9/02

Abstract: A multi-trace element fertilizer which contains magnesium as a further nutrient and in which the complex-forming trace elements are present in the form of anionic chelates with one or more N-carboxyalkylaminoacids is prepared by a process wherein the N-carboxyalkylaminoacids are reacted, in the presence of water, with the trace elements or trace element compounds in a molar ratio of N-carboxyalkylaminoacids to trace elements or trace element compounds of not less than 0.8:1, at least 20% by weight of the trace element compounds being oxides, hydroxides and/or carbonates. At the same time, or subsequently, the pH of the solution is brought to 3.5-6 by adding a member selected from the group consisting of magnesium oxide, hydroxide and carbonate. A maximum of 50 equivalent percent of the magnesium compound may however be replaced by a member selected from the group consisting of alkali metal oxides, hydroxides and carbonates and ammonia.

公开(公告)号：DK152355C

公开(公告)日：1988-08-01

申请号：DK526181

申请日：1981-11-27

Applicant: BASF AG

Inventor： LEUTNER BERND ,  PURUCKER BERNHARD ,  ROTHER EBERHARD ,  JUERGENS GEERD FRIEDRICH ,  WAGNER DIETER

IPC: C05D9/02

Abstract: A multi-trace element fertilizer which contains magnesium as a further nutrient and in which the complex-forming trace elements are present in the form of anionic chelates with one or more N-carboxyalkylaminoacids is prepared by a process wherein the N-carboxyalkylaminoacids are reacted, in the presence of water, with the trace elements or trace element compounds in a molar ratio of N-carboxyalkylaminoacids to trace elements or trace element compounds of not less than 0.8:1, at least 20% by weight of the trace element compounds being oxides, hydroxides and/or carbonates. At the same time, or subsequently, the pH of the solution is brought to 3.5-6 by adding a member selected from the group consisting of magnesium oxide, hydroxide and carbonate. A maximum of 50 equivalent percent of the magnesium compound may however be replaced by a member selected from the group consisting of alkali metal oxides, hydroxides and carbonates and ammonia.