FR684796A - Perfectionnements à la séparation des acides du goudron et autres substances goudronneuses contenus dans les liqueurs ou liquides de rebut provenant des usines à gaz
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Perfectionnements à la séparation des acides du goudron et autres substances goudronneuses contenus dans les liqueurs ou liquides de rebut provenant des usines à gaz
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Humphreys and Glasgow Ltd
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Humphreys and Glasgow Ltd
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Publication of FR684796ApublicationCriticalpatent/FR684796A/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
C07C37/72—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment by liquid-liquid treatment
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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FR684796D1929-01-041929-11-13Perfectionnements à la séparation des acides du goudron et autres substances goudronneuses contenus dans les liqueurs ou liquides de rebut provenant des usines à gaz
ExpiredFR684796A
(fr)
Perfectionnements à la séparation des acides du goudron et autres substances goudronneuses contenus dans les liqueurs ou liquides de rebut provenant des usines à gaz
Perfectionnements à la séparation des acides du goudron et autres substances goudronneuses contenus dans les liqueurs ou liquides de rebut provenant des usines à gaz
Perfectionnements apportés à la déshydratation et à la distillation continues du goudron ou d'autres liquides et aux appareils employés dans ce but