C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
260/236.2
C07C 50/18 (2006.01)
Patent
CA 1126267
ABREGE DESCRIPTIF Procédé amélioré pour la préparation de l'anthra- quinone par insufflation d'air dans une suspension de tétra- hydro-1,4,4a,9a anthraquinone dans une solution aqueuse alcaline, caractérisé en ce que la suspension comprend un alcool primaire ou secondaire aliphatique monofonctionnel, linéaire ou ramifie, possédant 2 à 10 atomes de carbone. L'addition d'alcool permet d'éviter la formation de mousses.
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Delavarenne Serge Y.
Dubreux Bernard
Tellier Pierre
Produits Chimiques Ugine Kuhlmann
Swabey Ogilvy Renault
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