发明名称 |
A PROCESS FOR THE PREPARATION OF FE(III) CHELATES OF N,N'-DI(2-HYDROXYBENZYL)-ETHYLENEDIAMINE-N,N'-DIACETIC ACID AND ITS DERIVATIVES |
摘要 |
<p>The invention relates to the process for the preparation of iron(lll) chelates of N, N'- di(2-hydroxybenzyl)ethylenediamine-N,N'-diacetic acid and its derivatives of the formula (I) wherein both R substituents have the same meaning and represent H, C1 -C4 alkyl, CH2OH, SO3M or COOM, and M is a sodium, potassium or ammonium cation, wherein the aqueous solution of a corresponding chelating agent is contacted with metallic iron by the circulation of said aqueous solution through the bed of pieces of metallic iron in a flow reactor while simultaneously blowing air or oxygen through the aqueous solution of the chelating agent in the flow reactor, optionally in the presence of a hydrogen peroxide solution. Chelates of the formula (I) are useful as the components of plant fertilizers.</p> |
申请公布号 |
WO2011006763(A1) |
申请公布日期 |
2011.01.20 |
申请号 |
WO2010EP59363 |
申请日期 |
2010.07.01 |
申请人 |
PRZEDSIEBIORSTWO PRODUKCYJNO-CONSULTINGOWE ADOB SP. Z O.O. SP.K.;OLSZEWSKI, RADOSLAW;NAWROCKI, ADAM;STEFANIAK, FILIP;STEGIENT-NOWICKA, JOANNA EWA;LUCENA MAROTTA, JUAN JOSE |
发明人 |
OLSZEWSKI, RADOSLAW;NAWROCKI, ADAM;STEFANIAK, FILIP;STEGIENT-NOWICKA, JOANNA EWA;LUCENA MAROTTA, JUAN JOSE |
分类号 |
C07C229/24 |
主分类号 |
C07C229/24 |
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