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C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
C07C37/68—Purification; separation; Use of additives, e.g. for stabilisation
C07C37/86—Purification; separation; Use of additives, e.g. for stabilisation by treatment giving rise to a chemical modification
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FR642586D1926-10-211927-10-19Procédé et dispositif pour débarrasser les eaux des substances organiques solubles riches en goudron
ExpiredFR642586A
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