C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 39/08 (2006.01) C07C 37/84 (2006.01)
Patent
CA 2653108
The present invention relates to a new form of hydroquinone in flake form, and to the process for obtaining it. The process of the invention for preparing hydroquinone flakes is characterized in that it comprises the following steps: - if necessary, melting the hydroquinone powder, - depositing the hydroquinone in the liquid state as a film on a support made of a material or coated with a material which conducts heat, - solidifying the hydroquinone by taking the support to the appropriate temperature, - recovering the solidified product in the form of flakes, using any appropriate means.
La présente invention a pour objet une nouvelle forme d'hydroquinone sous forme d'écailles ainsi que son procédé d'obtention. Le procédé de l'invention de préparation des écailles d'hydroquinone est caractérisé par le fait qu'il comprend les étapes suivantes : - faire fondre si nécessaire la poudre d'hydroquinone, - déposer l'hydroquinone à l'état liquide en film sur un support en un matériau ou revêtu d'un matériau conducteur de la chaleur, - faire solidifier l'hydroquinone en amenant le support à la température adéquate, - récupérer le produit solidifié sous forme d'écaillés à l'aide de tout moyen approprié.
Rhodia Operations
Robic
LandOfFree
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