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1986-03-27
Procede de purification d'acide phosphorique par voie humide
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1987-06-12
Nouveaux sels ferriques complexes de l'acide a,a'-(1,2-ethanodihylodiimine)-bis (5-carboxy-2-hydroxybenzenoacetique), et leur procede de preparation
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FR2727959A1
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1996-06-14
Procede de purification d'eaux residuaires contenant du chrome
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