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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
C07C37/70—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment
C07C37/72—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment by liquid-liquid treatment
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C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
C07C37/005—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by obtaining phenols from products, waste products or side-products of processes, not directed to the production of phenols, by conversion or working-up
C07C37/007—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by obtaining phenols from products, waste products or side-products of processes, not directed to the production of phenols, by conversion or working-up from the tar industry
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FR633542D1927-03-211927-04-28Procédé pour la séparation des produits neutres du goudron brut et de ses produits de fractionnement
ExpiredFR633542A
(fr)