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GEA Group AG
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Metallgesellschaft AG
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Application filed by Metallgesellschaft AGfiledCriticalMetallgesellschaft AG
Application grantedgrantedCritical
Publication of FR38413EpublicationCriticalpatent/FR38413E/fr
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
C07C37/82—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment by solid-liquid treatment; by chemisorption
C—CHEMISTRY; METALLURGY
C07—ORGANIC CHEMISTRY
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
C07C37/009—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 waste water
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Organic Chemistry
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Environmental & Geological Engineering
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FR38413D1930-04-121930-04-12Procédé pour l'épuration et l'utilisation de liquides aqueux, en particulier d'eaux résiduaires
ExpiredFR38413E
(fr)
Procédé avec dispositifs pour l'assainissement, la clarification et l'épuration de toutes eaux ainsi que pour la séparation des matières par ordre de densités